Note that the tables below are auto-generated using autokattis.
You might find this link useful to interact with the table.
For more Python data structure implementations, head over to pytils.
Problem Name | Problem ID | Difficulty | Languages |
---|---|---|---|
10 Kinds of People | 10kindsofpeople | 4.5 | ![]() |
1-D Frogger (Easy) | 1dfroggereasy | 3.3 | ![]() |
1-D Frogger (Hard) | 1dfroggerhard | 8.4 | ![]() |
1's For All | 1sforall | 6.2 | ![]() ![]() |
2048 | 2048 | 2.9 | ![]() ![]() |
2, 4, 6, Greaaat | 246greaaat | 8.2 | ![]() |
24 Game | 24game | 7.6 | ![]() |
So you want to be a 2^n-aire | 2naire | 3.2 | ![]() |
3D Printed Statues | 3dprinter | 2.8 | ![]() |
3-Sided Dice | 3sideddice | 8.3 | ![]() |
4 thought | 4thought | 3.0 | ![]() |
Eight Queens | 8queens | 2.8 | ![]() |
99 Problems (1) | 99problems | 2.7 | ![]() |
99 Problems (2) | 99problems2 | 5.9 | ![]() |
A1 Paper | a1paper | 4.2 | ![]() |
Aaah! | aaah | 1.5 | ![]() |
Abandoned Animal | abandonedanimal | 5.2 | ![]() |
ABC | abc | 2.3 | ![]() ![]() |
Ab Initio | abinitio | 6.8 | ![]() ![]() |
Above Average | aboveaverage | 2.1 | ![]() |
Abridged Reading | abridgedreading | 5.6 | ![]() |
Absolutely Symmetric | absolutelysymmetric | 4.1 | ![]() |
Abstract Art | abstractart | 6.8 | ![]() |
Abstract Painting | abstractpainting | 4.2 | ![]() |
Absurdistan Roads II | absurdistan2 | 6.9 | ![]() |
Absurdistan Roads III | absurdistan3 | 5.8 | ![]() |
A Cappella Recording | acappellarecording | 3.4 | ![]() |
Access Denied | accessdenied | 4.1 | ![]() |
ACM Contest Scoring | acm | 2.0 | ![]() |
Association for Computing Machinery | acm2 | 2.7 | ![]() |
The Calculus of Ada | ada | 2.5 | ![]() |
Add 'Em Up! | addemup | 7.4 | ![]() |
Adding Trouble | addingtrouble | 1.4 | ![]() |
Adding Words | addingwords | 3.8 | ![]() |
Add Two Numbers | addtwonumbers | 1.2 | ![]() |
Adjoin The Networks | adjoin | 5.9 | ![]() |
Administrative Difficulties | administrativeproblems | 5.8 | ![]() |
Adolescent Architecture | adolescentarchitecture | 4.3 | ![]() |
Ads | ads | 5.0 | ![]() |
Adventures in Moving -- Part IV | adventuremoving4 | 5.3 | ![]() |
Afjörmun | afjormun | 1.6 | ![]() |
Agamemnon's Odyssey | agamemnonsodyssey | 4.8 | ![]() |
AI Jeopardy | aijeopardy | 6.2 | ![]() |
Air Conditioned Minions | airconditioned | 3.2 | ![]() |
Airline Hub | airlinehub | 6.6 | ![]() |
Airports | airports | 5.1 | ![]() |
Akcija | akcija | 2.2 | ![]() |
Alchemy 101 | alchemy101 | 4.0 | ![]() |
Aldursröðun | aldursrodun | 2.9 | ![]() |
Alehouse | alehouse | 3.8 | ![]() |
Á leið í bíó | aleidibio | 1.2 | ![]() |
Alex and Barb | alexandbarb | 3.7 | ![]() ![]() |
Alice in the Digital World | alicedigital | 4.0 | ![]() |
Alien Math | alienmath | 2.6 | ![]() |
Alien Numbers | aliennumbers | 2.5 | ![]() |
Stammering Aliens | aliens | 6.5 | ![]() |
All about that base | allaboutthatbase | 2.8 | ![]() |
All Different Directions | alldifferentdirections | 2.8 | ![]() |
Allergen Testing | allergentesting | 6.9 | ![]() |
Alloys | alloys | 3.7 | ![]() |
All Pairs Shortest Path | allpairspath | 5.5 | ![]() |
Almennir Borgarar | almennirborgarar | 4.1 | ![]() |
Almost Perfect | almostperfect | 3.0 | ![]() |
Almost Sorted (1) | almostsorted | 6.6 | ![]() |
Almost Sorted (2) | almostsorted2 | 5.4 | ![]() |
Almost Union-Find | almostunionfind | 5.1 | ![]() ![]() |
Alphabet | alphabet | 3.3 | ![]() |
Alphabet Animals | alphabetanimals | 3.4 | ![]() |
Alphabet Spam | alphabetspam | 1.7 | ![]() |
Amanda Lounges | amanda | 5.9 | ![]() |
A Mazing! | amazing | 5.5 | ![]() |
Amerískur vinnustaður | ameriskur | 1.3 | ![]() |
Sheba's Amoebas | amoebas | 1.8 | ![]() |
Amsterdam Distance | amsterdamdistance | 2.6 | ![]() |
A Multiplication Game | amultiplicationgame | 4.2 | ![]() |
A Musical Question | amusicalquestion | 6.7 | ![]() |
Anagram Counting | anagramcounting | 2.8 | ![]() |
AND Permutation | andpermutation | 6.9 | ![]() |
Andrew the Ant | andrewant | 5.0 | ![]() |
Duck Journey | andvag | 3.8 | ![]() |
An Easy Array Problem | aneasyarray | 6.4 | ![]() |
A New Adventure | anewadventure | 6.2 | ![]() |
A New Alphabet | anewalphabet | 2.4 | ![]() |
Animal Classification | animal | 6.5 | ![]() |
Alternative Anagram | annorlundaanagram | 5.2 | ![]() |
Annoyed Coworkers | annoyedcoworkers | 3.3 | ![]() |
Another Brick in the Wall | anotherbrick | 2.3 | ![]() |
Another Candies | anothercandies | 2.8 | ![]() |
Another Dice Game | anotherdice | 4.7 | ![]() |
Another Substring Query Problem | anothersubstringqueryproblem | 8.3 | ![]() ![]() |
Antenna Analysis | antennaanalysis | 5.4 | ![]() |
Antenna Placement | antennaplacement | 4.3 | ![]() |
Anthony and Cora | anthony | 4.9 | ![]() |
Anthony and Diablo | anthonyanddiablo | 2.7 | ![]() |
Ocean's Anti-11 | anti11 | 2.4 | ![]() |
Ocean's Anti-11 (Hard) | anti11hard | 7.7 | ![]() |
Antiarihmetic | antiarithmetic | 7.0 | ![]() |
Anti-Palindrome | antipalindrome | 2.1 | ![]() |
Fancy Antiques | antiques | 8.0 | ![]() |
Ants | ants | 2.4 | ![]() |
Apaxiaaaaaaaaaaaans! | apaxiaaans | 1.5 | ![]() ![]() ![]() |
Honour Thy (Apaxian) Parent | apaxianparent | 1.9 | ![]() |
A Pivotal Question | apivotalquestion | 4.4 | ![]() |
A+B Problem | aplusb | 6.6 | ![]() |
Appalling Architecture | appallingarchitecture | 4.1 | ![]() |
Appeal to the Audience | appealtotheaudience | 5.2 | ![]() |
The Apple Game | appelspelet | 8.7 | ![]() ![]() |
Falling Apples | apples | 3.3 | ![]() |
Johnny Applesack | applesack | 3.2 | ![]() |
Apples, Cherries, and Mangos | applescherriesmangos | 7.0 | ![]() |
A Prize No One Can Win | aprizenoonecanwin | 3.2 | ![]() |
Aqueduct Construction | aqueducts | 6.5 | ![]() |
Arachnophobia | arachnophobia | 5.1 | ![]() |
Arbitrage | arbitrage | 3.8 | ![]() |
Archimedes | archimedes | 4.9 | ![]() |
Architecture | architecture | 2.9 | ![]() |
Arctic Network | arcticnetwork | 3.6 | ![]() |
A Real Challenge | areal | 2.2 | ![]() |
Are You Listening | areyoulistening | 2.5 | ![]() |
Arithmetic | arithmetic | 3.4 | ![]() |
Arithmetic Decoding | arithmeticdecoding | 2.4 | ![]() |
Arithmetic Functions | arithmeticfunctions | 1.6 | ![]() |
Arm Coordination | armcoordination | 1.6 | ![]() |
ARMPIT Computations | armpitcomputations | 3.4 | ![]() |
Army Strength (Easy) | armystrengtheasy | 2.3 | ![]() |
Army Strength (Hard) | armystrengthhard | 2.3 | ![]() |
Arranging Hat | arranginghat | 6.4 | ![]() |
Array of Discord | arrayofdiscord | 4.9 | ![]() |
Array Smoothening | arraysmoothening | 3.1 | ![]() ![]() |
Arriving on Time | arrivingontime | 5.3 | ![]() |
Amalgamated Artichokes | artichoke | 2.5 | ![]() |
Artur | artur | 6.9 | ![]() |
Artwork | artwork | 5.8 | ![]() |
ASCII Addition | asciiaddition | 2.5 | ![]() |
ASCII Figure Rotation | asciifigurerotation | 3.4 | ![]() |
ASCII kassi | asciikassi | 1.5 | ![]() |
ASCII Kassi 2 | asciikassi2 | 2.1 | ![]() |
Ask Marilyn | askmarilyn | 4.2 | ![]() |
Aspen Avenue | aspenavenue | 6.4 | ![]() |
Self-Assembly | assembly | 4.2 | ![]() |
Assembly Line | assemblyline | 6.9 | ![]() |
Associative Exponents | associativeexponents | 3.7 | ![]() |
Asteroid Avoidance | asteroidavoidance | 3.0 | ![]() |
Astro | astro | 3.9 | ![]() |
Astrological Sign | astrologicalsign | 2.5 | ![]() |
Atlögur | atlogur | 2.3 | ![]() |
A Trivial Pursuit | atrivialpursuit | 8.5 | ![]() |
Attendance | attendance2 | 1.9 | ![]() |
Auto Completion | autocompletion | 6.7 | ![]() |
Automatic Trading | automatictrading | 5.1 | ![]() |
Autori | autori | 1.3 | ![]() ![]() ![]() |
Average Character | averagecharacter | 1.9 | ![]() |
Paradox With Averages | averageseasy | 2.8 | ![]() |
Paradox With Averages (Hard) | averageshard | 3.2 | ![]() |
Average Speed | averagespeed | 3.5 | ![]() |
Avion | avion | 1.5 | ![]() |
Avoiding the Apocalypse | avoidingtheapocalypse | 3.8 | ![]() |
Avoidland | avoidland | 3.1 | ![]() |
Awkward Party | awkwardparty | 2.7 | ![]() |
Aww Man | awwman | 5.1 | ![]() |
BAAS | baas | 5.2 | ![]() |
Babelfish | babelfish | 2.5 | ![]() |
Baby Bites | babybites | 1.8 | ![]() |
Babylonian Numbers | babylonian | 2.1 | ![]() |
Baby Names | babynames | 5.6 | ![]() |
Baby Panda | babypanda | 2.3 | ![]() |
Bachelor's Thesis | bachelorsthesis | 7.7 | ![]() |
Bachet's Game | bachetsgame | 3.3 | ![]() |
Backpack Buddies | backpackbuddies | 6.7 | ![]() |
Backspace | backspace | 1.8 | ![]() |
Bacon, Eggs, and Spam | baconeggsandspam | 2.0 | ![]() |
Bag of Tiles | bagoftiles | 5.6 | ![]() |
Balanced Diet | balanceddiet | 3.1 | ![]() |
Ball | ball | 4.2 | ![]() |
Ball Bearings | ballbearings | 4.2 | ![]() ![]() |
Distributing Ballot Boxes | ballotboxes | 4.1 | ![]() |
Balls and Needles | ballsandneedles | 4.0 | ![]() |
Baloni | baloni | 4.8 | ![]() |
Bank Queue | bank | 3.2 | ![]() |
Bannorð | bannord | 1.6 | ![]() |
Barcelona | barcelona | 1.3 | ![]() |
Bard | bard | 2.5 | ![]() |
Bar Shelf | barshelf | 6.8 | ![]() |
Base-2 Palindromes | base2palindrome | 4.3 | ![]() |
basic | basic | 8.2 | ![]() |
BASIC Interpreter | basicinterpreter | 5.4 | ![]() |
Basic Programming 1 | basicprogramming1 | 4.7 | ![]() |
Basic Programming 2 | basicprogramming2 | 4.0 | ![]() |
Basic Remains | basicremains | 3.6 | ![]() |
Basketball One-on-One | basketballoneonone | 1.5 | ![]() |
Saunas | bastubad | 4.6 | ![]() |
Batch GCD | batchgcd | 8.8 | ![]() |
Batmanacci | batmanacci | 3.3 | ![]() |
Exploding Batteries | batteries | 4.0 | ![]() |
Batter Up | batterup | 1.4 | ![]() |
Battleship | battleship | 4.7 | ![]() |
Battle Simulation | battlesimulation | 2.5 | ![]() |
Baza | baza | 5.8 | ![]() |
Bazaar | bazaar | 6.2 | ![]() |
Bazen | bazen | 2.6 | ![]() |
Jack and the Beanbag | beanbag | 4.9 | ![]() |
Beat the Spread! | beatspread | 2.2 | ![]() |
Beautiful Primes | beautifulprimes | 4.1 | ![]() |
Beavergnaw | beavergnaw | 1.7 | ![]() |
Beehives (1) | beehives | 2.3 | ![]() |
Beehives (2) | beehives2 | 5.2 | ![]() |
Bee House Perimeter | beehouseperimeter | 3.7 | ![]() |
Beekeeper | beekeeper | 2.6 | ![]() |
Beep Code | beepcode | 3.7 | ![]() |
Collecting Beepers | beepers | 4.4 | ![]() |
Bee Problem | beeproblem | 4.3 | ![]() |
Bela | bela | 1.4 | ![]() |
Bell Ringing | bells | 4.6 | ![]() |
Bendilfærslur | bendilfaerslur | 5.0 | ![]() |
BergMál | bergmal | 1.2 | ![]() |
Bergur | bergur | 2.3 | ![]() |
Besta gjöfin | bestagjofin | 1.3 | ![]() |
Best Before | bestbefore | 3.7 | ![]() |
Best Compression Ever | bestcompression | 2.6 | ![]() |
Best Rational Approximation | bestrational | 5.2 | ![]() |
Best Relay Team | bestrelayteam | 2.1 | ![]() ![]() |
Betting | betting | 1.2 | ![]() |
Hey, Better Bettor | bettor | 6.5 | ![]() |
Bicikli | bicikli | 6.7 | ![]() |
Bið, endalaus bið | bidendalausbid | 2.8 | ![]() |
Big Boxes | bigboxes | 3.3 | ![]() |
Biggest Slice | biggest | 6.0 | ![]() |
The Biggest Triangle | biggesttriangle | 4.7 | ![]() |
Big Totoro | bigtotoro | 3.8 | ![]() |
Big Truck | bigtruck | 3.2 | ![]() |
Bijele | bijele | 1.3 | ![]() ![]() |
Bike Gears | bikegears | 5.0 | ![]() |
Bilað Lyklaborð | biladlyklabord | 1.6 | ![]() |
Bilateral Projects | bilateral | 6.3 | ![]() |
Billiard | billiard | 2.3 | ![]() |
Bílskúrar | bilskurar | 6.1 | ![]() |
Binary Choosing | binarychoosing | 5.1 | ![]() |
Binary Voting | binaryvoting | 4.9 | ![]() |
Bing It On | bing | 2.7 | ![]() |
Bíóferð | bioferd | 6.3 | ![]() |
Birds on a Wire | birds | 3.3 | ![]() |
Birthday Party | birthday | 2.8 | ![]() |
Birthday Boy | birthdayboy | 4.6 | ![]() |
Birthday Paradox | birthdayparadox | 5.4 | ![]() |
Bishops | bishops | 2.4 | ![]() |
Bit by Bit | bitbybit | 3.3 | ![]() |
Bitmask | bitmask | 3.3 | ![]() |
Bits | bits | 2.4 | ![]() |
Bits Equalizer | bitsequalizer | 4.1 | ![]() |
Bitte ein Bit | bitteeinbit | 1.3 | ![]() |
Bitwise | bitwise | 6.2 | ![]() |
BizzFuzz | bizzfuzz | 4.6 | ![]() |
Black Friday | blackfriday | 2.2 | ![]() |
Black Out | blackout | 3.3 | ![]() |
Blaðra (1) | bladra | 1.9 | ![]() |
Blaðra (2) | bladra2 | 1.2 | ![]() |
Blandað Best | blandadbest | 1.2 | ![]() |
Blobs of Doom | blobsofdoom | 5.7 | ![]() |
Block Crusher | blockcrusher | 3.5 | ![]() |
Block Game | blockgame2 | 3.6 | ![]() |
Blocks on Blocks | blocks | 6.1 | ![]() |
Blooper Game | bloopergame | 7.4 | ![]() |
Blueberry Waffle | blueberrywaffle | 2.1 | ![]() |
Bluetooth | bluetooth | 2.0 | ![]() |
Boat Parts | boatparts | 2.3 | ![]() |
Bobby's Bet | bobby | 2.6 | ![]() |
Boggle | boggle | 4.8 | ![]() |
Accounting | bokforing | 3.7 | ![]() |
Book Shelves | bokhyllor | 3.6 | ![]() |
Bond | bond | 6.1 | ![]() |
Book Circle | bookcircle | 5.3 | ![]() |
Book Club | bookclub | 4.7 | ![]() |
Booking | booking | 5.4 | ![]() |
Booking a Room | bookingaroom | 1.8 | ![]() |
Booming Business | boomingbusiness | 4.6 | ![]() |
Bootstrapping Number | bootstrappingnumber | 2.9 | ![]() |
Borders | borders | 6.8 | ![]() |
Borðspil | bordspil | 4.2 | ![]() |
Killing Aliens in a Borg Maze | borg | 3.6 | ![]() |
The Stock Market | borsen | 3.5 | ![]() |
Boss Battle | bossbattle | 2.0 | ![]() |
Bottled-Up Feelings | bottledup | 2.4 | ![]() |
Bottle Flip | bottleflip | 2.3 | ![]() |
Curvy Little Bottles | bottles | 3.0 | ![]() |
Bounding Box | boundingbox | 5.2 | ![]() |
Bounding Robots | boundingrobots | 1.9 | ![]() |
Bowser's Pipes | bowserspipes | 5.8 | ![]() |
Boxes | boxes | 3.5 | ![]() |
Bracket Matching | bracketmatching | 2.1 | ![]() |
Bracket Matrix | bracketmatrix | 5.5 | ![]() |
Bracket Sequence | bracketsequence | 5.0 | ![]() |
The Board Game | bradspelet | 4.0 | ![]() |
BrainFsckVM | brainfsckvm | 6.0 | ![]() |
Branch Manager | branchmanager | 5.3 | ![]() |
Brandvägg | brandvagg | 4.6 | ![]() |
Bread Sorting | bread | 4.8 | ![]() |
Breaking Bad | breakingbad | 3.2 | ![]() |
Breaking Branches | breakingbranches | 1.6 | ![]() |
Breaking Cake | breakingcake | 5.7 | ![]() |
Letter Optimization | brevoptimering | 5.2 | ![]() |
Brexit | brexit | 2.9 | ![]() |
Brexit Negotiations | brexitnegotiations | 5.1 | ![]() |
Bribe | bribe | 5.6 | ![]() |
Brick Wall | brickwall | 5.1 | ![]() |
Bridge | bridge | 6.4 | ![]() |
Bridge Automation | bridgeautomation | 5.8 | ![]() |
Bridges and Tunnels | bridgesandtunnels | 2.8 | ![]() ![]() |
Brocard Point of a Triangle | brocard | 4.5 | ![]() |
Broken Calculator | brokencalculator | 2.7 | ![]() |
Broken Keypad | brokenkeypad | 4.6 | ![]() |
Broken Swords | brokenswords | 2.0 | ![]() |
Brownie Points I | browniepoints | 2.3 | ![]() |
Bridges | bryr | 2.1 | ![]() |
Binary search tree | bst | 7.5 | ![]() ![]() |
Delicious Bubble Tea | bubbletea | 2.7 | ![]() |
Bucket Brigade | bucketbrigade | 3.9 | ![]() |
Budget | budget | 6.6 | ![]() |
Buggy Robot (1) | buggyrobot | 6.1 | ![]() |
Buggy Robot (2) | buggyrobot2 | 5.1 | ![]() |
Build Dependencies | builddeps | 3.7 | ![]() |
Building Boundaries | buildingboundaries | 3.7 | ![]() |
Building Highways | buildinghighways | 2.0 | ![]() ![]() |
Buka | buka | 2.0 | ![]() |
Bumped! | bumped | 4.6 | ![]() |
Bundles of Joy | bundles | 6.5 | ![]() |
Bungee Builder | bungeebuilder | 3.5 | ![]() |
Bungee Jumping | bungeejumping | 4.9 | ![]() |
Bunny Town Bonding | bunnytownbonding | 4.2 | ![]() |
Buried Treasure | buriedtreasure2 | 4.0 | ![]() |
Burrows-Wheeler | burrowswheeler | 5.9 | ![]() |
Bus | bus | 1.7 | ![]() |
Bus Lines | buslines | 2.3 | ![]() |
Bus Numbers (1) | busnumbers | 2.3 | ![]() |
Bus Numbers (2) | busnumbers2 | 2.6 | ![]() |
Bus Planning | busplanning | 5.9 | ![]() |
The Bus Card | busskortet | 2.9 | ![]() |
Bus Ticket | busticket | 5.1 | ![]() |
Bus Tour | bustour | 6.1 | ![]() |
Busy Roads | busyroads | 4.7 | ![]() |
Busy Schedule | busyschedule | 2.4 | ![]() |
Button Bashing | buttonbashing | 3.3 | ![]() ![]() |
Buzzwords | buzzwords | 4.9 | ![]() |
Introspective Caching | caching | 5.9 | ![]() ![]() |
Cafeteria (Easy) | cafeteriaeasy | 5.4 | ![]() |
Cake | cake | 5.0 | ![]() |
Cake Cutting | cakecutting | 8.1 | ![]() |
Cakey McCakeFace | cakeymccakeface | 4.5 | ![]() |
Calculating Dart Scores | calculatingdartscores | 2.7 | ![]() |
Calculator | calculator | 2.9 | ![]() |
Calories From Fat | calories | 2.8 | ![]() |
Guessing Camels | camels | 6.0 | ![]() |
Canadians, eh | canadianseh | 1.6 | ![]() |
Candle Box | candlebox | 2.7 | ![]() |
Candy Distribution | candydistribution | 3.7 | ![]() |
Candy Division | candydivision | 2.9 | ![]() |
Candy Store | candystore | 1.5 | ![]() |
Can of Worms | canofworms | 7.4 | ![]() |
Canonical Coin Systems | canonical | 4.8 | ![]() |
Cantina of Babel | cantinaofbabel | 2.9 | ![]() |
Cantor | cantor | 2.9 | ![]() |
Canvas Painting | canvas | 3.7 | ![]() |
Canvas Line | canvasline | 5.1 | ![]() |
Canyon Crossing | canyoncrossing | 6.4 | ![]() |
Capsules | capsules | 3.0 | ![]() |
Captain Obvious and the Rabbit-Man | captainobvious | 6.0 | ![]() |
Cardboard Container | cardboardcontainer | 2.6 | ![]() |
Card Divisibility | carddivisibility | 4.0 | ![]() |
Card Hand Sorting | cardhand | 4.6 | ![]() |
Cardiology | cardiology | 3.4 | ![]() |
Card Magic | cardmagic | 3.5 | ![]() |
Card Trading | cardtrading | 3.1 | ![]() ![]() |
Card Trick | cardtrick2 | 2.1 | ![]() |
Careful Ascent | carefulascent | 2.2 | ![]() |
Car Game | cargame | 5.9 | ![]() |
Carl's Vacation | carlsvacation | 3.7 | ![]() |
Carnival General | carnivalgenerals | 3.7 | ![]() |
Carousel Rides | carousel | 2.5 | ![]() |
Stained Carpet | carpet | 6.5 | ![]() |
Carpool | carpool | 7.5 | ![]() |
Solving for Carrots | carrots | 1.3 | ![]() ![]() ![]() |
Car Trouble | cartrouble | 4.4 | ![]() |
Car Vet | carvet | 3.9 | ![]() |
Catalan Numbers | catalan | 3.7 | ![]() |
Catalan Square | catalansquare | 3.3 | ![]() |
Cat and Mice | catandmice | 4.1 | ![]() |
Catching Noodles | catchingnoodles | 7.1 | ![]() |
Cat Coat Colors | catcoat | 3.0 | ![]() |
Catenyms | catenyms | 6.8 | ![]() |
Catering | catering | 4.0 | ![]() |
A Feast For Cats | cats | 3.6 | ![]() |
Cat vs. Dog | catvsdog | 5.9 | ![]() |
Cave Exploration (1) | caveexploration | 3.1 | ![]() |
Cave Exploration (2) | caveexploration2 | 4.0 | ![]() |
CD | cd | 4.1 | ![]() |
Ceiling Function | ceiling | 2.2 | ![]() |
Celebrity Split | celebritysplit | 8.3 | ![]() |
Cent Savings | centsavings | 4.9 | ![]() |
Opening Ceremony | ceremony | 3.4 | ![]() ![]() |
Cetiri | cetiri | 1.8 | ![]() |
Cetvrta | cetvrta | 1.4 | ![]() |
Cezar | cezar | 6.0 | ![]() |
Champernowne Count | champernownecount | 3.6 | ![]() |
Champernowne Verification | champernowneverification | 1.5 | ![]() |
Chanukah Challenge | chanukah | 1.3 | ![]() |
Character Development | character | 2.3 | ![]() |
Charged | charged | 2.3 | ![]() |
Charles in Charge | charlesincharge | 5.3 | ![]() |
Charting Progress | chartingprogress | 2.2 | ![]() |
Chatter | chatter | 4.0 | ![]() |
Cheating at War | cheatingatwar | 5.5 | ![]() |
Cheating a Boolean Tree | cheatingbooleantree | 3.8 | ![]() |
Cheating Students | cheatingstudents | 2.9 | ![]() |
Checking Break | checkingbreak | 6.2 | ![]() |
Checking For Correctness | checkingforcorrectness | 4.0 | ![]() |
Checkmate in One | checkmateinone | 4.4 | ![]() |
Cutting Cheese | cheese | 2.9 | ![]() |
Cheese, If You Please | cheeseifyouplease | 3.5 | ![]() |
Chemist's vows | chemistsvows | 3.0 | ![]() |
Chess | chess | 3.4 | ![]() |
Chess Competition | chesscompetition | 6.4 | ![]() |
Chess Tournament | chesstournament | 5.8 | ![]() |
Chewbacca | chewbacca | 3.1 | ![]() |
Chinese Remainder | chineseremainder | 4.5 | ![]() |
Chocolate Division | chocolatedivision | 1.9 | ![]() |
Chocolates | chocolates | 4.7 | ![]() |
Choosing Numbers | choosingnumbers | 6.9 | ![]() |
Preludes | chopin | 1.9 | ![]() |
Chopping Wood | chopwood | 3.1 | ![]() |
Chugging | chugging | 1.7 | ![]() |
Cinema Crowds | cinema | 2.1 | ![]() |
Cinema Crowds 2 | cinema2 | 1.8 | ![]() |
Cinema Seating | cinemaseating | 2.8 | ![]() |
Circle Bounce | circlebounce | 4.9 | ![]() |
Circuit Math | circuitmath | 2.2 | ![]() |
Circular DNA | circular | 3.4 | ![]() |
Circular Caramel Cookie | circularcaramelcookie | 3.8 | ![]() |
Circumsphere | circumsphere | 5.2 | ![]() |
Citadel Construction | citadelconstruction | 7.3 | ![]() |
The Citrus Intern | citrusintern | 3.7 | ![]() |
City Destruction | city | 6.1 | ![]() |
City Numbers | citynumbers | 4.5 | ![]() |
City Park | citypark | 8.0 | ![]() |
Class Field Trip | classfieldtrip | 1.5 | ![]() |
Classical Counting | classicalcounting | 7.9 | ![]() |
Class Picture | classpicture | 4.9 | ![]() |
Classrooms | classrooms | 5.8 | ![]() |
A Classy Problem | classy | 4.5 | ![]() |
Climbing Stairs | climbingstairs | 4.3 | ![]() |
Climbing Worm | climbingworm | 2.3 | ![]() |
Clinic | clinic | 4.2 | ![]() |
Clock Breaking | clock | 3.8 | ![]() |
Clock Construction | clockconstruction | 4.4 | ![]() |
Clock Pictures | clockpictures | 3.7 | ![]() |
Closeness Queries | closenessqueries | 8.0 | ![]() |
Closest Pair (Uniform) | closestpair1 | 4.7 | ![]() ![]() |
Closest Pair | closestpair2 | 6.9 | ![]() |
Closest Sums | closestsums | 2.5 | ![]() |
Closing The Loop | closingtheloop | 2.1 | ![]() |
Coast Length | coast | 3.1 | ![]() |
A Furious Cocktail | cocktail | 2.8 | ![]() |
Cocoa Coalition | cocoacoalition | 5.0 | ![]() |
Coconut Splat | coconut | 1.9 | ![]() |
Code Cleanups | codecleanups | 3.6 | ![]() |
Code Guessing | codeguessing | 3.1 | ![]() |
Code Names | codenames | 5.1 | ![]() |
Code to Save Lives | codetosavelives | 1.7 | ![]() |
Coffee Cup Combo | coffeecupcombo | 1.5 | ![]() |
Coin Counter | coincounter | 6.7 | ![]() |
Coin Stacks | coinstacks | 3.7 | ![]() |
Buying Coke | coke | 6.6 | ![]() |
Cokolada | cokolada | 2.3 | ![]() |
Cold-puter Science | cold | 1.3 | ![]() ![]() |
Collapse | collapse | 3.3 | ![]() |
Collatz Conjecture (1) | collatz | 3.9 | ![]() |
Collatz Conjecture (2) | collatzconjecture | 7.0 | ![]() |
Colliding Traffic | collidingtraffic | 3.4 | ![]() |
Coloring Socks | color | 2.5 | ![]() |
Coloring Graphs | coloring | 5.4 | ![]() |
Colorland | colorland | 3.9 | ![]() |
Colour Wars | colourwars | 2.9 | ![]() |
Prof. Fumblemore and the Collatz Conjecture | coltype | 4.8 | ![]() |
Combination Lock | combinationlock | 3.0 | ![]() |
Combinatorial Stanley Cup | combinatorialstanleycup | 3.1 | ![]() ![]() ![]() |
Comma Sprinkler | comma | 4.5 | ![]() |
Radio Commercials | commercials | 2.1 | ![]() |
Committee Assignment | committeeassignment | 6.8 | ![]() |
Common Factors | commonfactors | 4.7 | ![]() |
Communicating The Strategy | communicatingstrategy | 4.5 | ![]() |
Jumbled Communication | communication | 2.2 | ![]() |
Communications Satellite | communicationssatellite | 3.6 | ![]() |
Company Picnic | companypicnic | 4.2 | ![]() |
Comparing Answers | comparinganswers | 7.3 | ![]() |
Jumbled Compass | compass | 2.0 | ![]() |
Competitive Arcade Basketball | competitivearcadebasketball | 2.2 | ![]() |
Completing the Square | completingthesquare | 2.1 | ![]() |
Compositions | compositions | 2.4 | ![]() |
Compound Words | compoundwords | 1.8 | ![]() |
Compression | compression2 | 3.7 | ![]() |
Best Compromise | compromise | 2.1 | ![]() |
Conformity | conformity | 1.7 | ![]() |
Conga Line | congaline | 4.7 | ![]() |
Surely You Congest | congest | 3.8 | ![]() |
Connect-N | connectn | 3.7 | ![]() |
Connect the Dots | connectthedots | 3.7 | ![]() |
Conquest | conquest | 2.8 | ![]() |
Conquest Campaign | conquestcampaign | 2.3 | ![]() |
Sums | consecutivesums | 4.2 | ![]() |
Conservation | conservation | 4.8 | ![]() |
Constellation Creation | constellationcreation | 4.5 | ![]() |
Constrained Freedom of Choice | constrainedfreedomofchoice | 4.6 | ![]() |
Contact Tracing | contacttracing | 5.1 | ![]() |
Contest Advancement | contestadvancement | 4.4 | ![]() |
Multi-Year Contest Scheduling | contestscheduling | 3.7 | ![]() |
Contest Struggles | conteststruggles | 2.3 | ![]() |
Contingency Planning | contingencyplanning | 2.1 | ![]() |
Continuous Median | continuousmedian | 3.7 | ![]() |
Association for Control Over Minds | control | 4.0 | ![]() |
Cryptographer's Conundrum | conundrum | 1.5 | ![]() |
Conversation Log | conversationlog | 2.8 | ![]() |
Floating-Point Format Conversion | conversion | 6.8 | ![]() |
Converting Romans | convertingromans | 3.6 | ![]() |
Association for Convex Main Office | convex | 6.2 | ![]() |
Convex Hull (1) | convexhull | 4.3 | ![]() |
Convex Hull (2) | convexhull2 | 7.0 | ![]() |
Convex Polygon Area | convexpolygonarea | 1.9 | ![]() |
Conveyor Belts (1) | conveyorbelts | 4.9 | ![]() |
Conveyor Belts (2) | conveyorbelts2 | 5.5 | ![]() |
Convoy | convoy | 4.2 | ![]() |
Cookie Cutters | cookiecutter | 2.3 | ![]() |
Cookie Selection | cookieselection | 4.9 | ![]() |
Cooking Water | cookingwater | 2.1 | ![]() |
Association for Cool Machineries (Part 1) | cool1 | 7.1 | ![]() |
Association for Cool Machineries (Part 2) | cool2 | 6.1 | ![]() |
Coprime Integers | coprimeintegers | 6.0 | ![]() |
Cops and Robbers | copsandrobbers | 4.8 | ![]() |
Cordon Bleu | cordonbleu | 5.9 | ![]() |
Cornhusker | cornhusker | 1.6 | ![]() |
Limited Correspondence | correspondence | 6.7 | ![]() |
Corrupt Judge | corruptjudge | 4.1 | ![]() |
Cosmic Path Optimization | cosmicpathoptimization | 1.3 | ![]() |
Costume Contest | costumecontest | 2.0 | ![]() |
Councilling | councilling | 6.8 | ![]() |
Circuit Counting | countcircuits | 5.5 | ![]() |
Count Doubles | countdoubles | 2.0 | ![]() |
Counting Chocolate | countingchocolate | 4.2 | ![]() |
Counting Clauses | countingclauses | 1.5 | ![]() |
Counting Days | countingdays | 2.9 | ![]() |
Counting Satellites | countingsatellites | 6.9 | ![]() |
Counting Staircases | countingstaircases | 5.4 | ![]() |
Counting Stars | countingstars | 2.6 | ![]() |
Counting Trees | countingtrees | 6.4 | ![]() |
Counting Triangles | countingtriangles | 2.1 | ![]() |
Count the Vowels | countthevowels | 1.3 | ![]() |
Couple Competition | couplecompetition | 5.4 | ![]() |
Course Scheduling | coursescheduling | 1.8 | ![]() |
Covered Walkway | coveredwalkway | 4.1 | ![]() |
Cowboy Checkers | cowboycheckers | 4.1 | ![]() |
Cow Crane | cowcrane | 3.6 | ![]() |
CPR Number | cprnummer | 1.5 | ![]() |
Exploding CPU | cpu | 5.8 | ![]() |
Cracker Barrel Game | crackerbarrel | 4.3 | ![]() |
Cracking RSA | crackingrsa | 2.1 | ![]() |
Cracking the Code | crackingthecode | 5.9 | ![]() |
Crane Balancing | crane | 4.8 | ![]() |
Crane | crane2 | 4.4 | ![]() |
Cranes | cranes | 4.0 | ![]() |
Crashing Robots | crashingrobots | 3.5 | ![]() |
Creative Accounting | creativeaccounting | 5.4 | ![]() |
Credit Card Payment | creditcard | 5.6 | ![]() |
Criss-Cross | crisscross | 8.8 | ![]() |
Crne | crne | 2.6 | ![]() |
Crop Triangles (Easy) | cropeasy | 3.1 | ![]() |
Crop Triangles (Hard) | crophard | 5.7 | ![]() |
Cross | cross | 4.1 | ![]() |
Cross Country | crosscountry | 2.6 | ![]() |
Crowd Control | crowdcontrol | 3.5 | ![]() |
Crusaders of the Lost Mark | crusaders | 8.4 | ![]() |
Cryptographic Keys | crypto | 4.1 | ![]() |
Cuboid Slicing Game | cuboidslicinggame | 5.1 | ![]() ![]() |
Cu Chi Tunnels | cuchitunnels | 3.1 | ![]() |
Cuckoo Hashing | cuckoo | 4.0 | ![]() |
Cuckoo! Cuckoo! | cuckoocuckoo | 3.9 | ![]() |
Cudak | cudak | 6.7 | ![]() |
Cudoviste | cudoviste | 1.5 | ![]() |
Stacking Cups | cups | 1.6 | ![]() |
Curse the Darkness | cursethedarkness | 2.6 | ![]() |
Curve Knights | curveknights | 3.5 | ![]() |
Curve Speed | curvespeed | 2.4 | ![]() |
Stacking Curvy Blocks | curvyblocks | 4.8 | ![]() |
Cut in Line | cutinline | 1.6 | ![]() |
Cut the Negativity | cutthenegativity | 1.4 | ![]() |
Cutting Brownies | cuttingbrownies | 4.1 | ![]() |
Cutting Corners | cuttingcorners | 2.8 | ![]() |
Cyanide Rivers | cyaniderivers | 2.3 | ![]() |
Cycles (Easy) | cycleseasy | 4.0 | ![]() |
Cycles (Hard) | cycleshard | 8.5 | ![]() |
Cyclical Periods | cyclicalperiods | 2.8 | ![]() |
Cypher Decypher | cypherdecypher | 1.6 | ![]() |
Dacey the Dice | daceydice | 3.6 | ![]() |
Daily Division | dailydivision | 6.0 | ![]() |
Damaged Equation | damagedequation | 2.5 | ![]() |
Dams in Distress | damsindistress | 3.8 | ![]() |
Dance Recital | dancerecital | 3.9 | ![]() |
Dance Pad | dansmatta | 4.1 | ![]() |
The Darkness | darkness | 7.1 | ![]() |
Dartboard | dartboard | 4.2 | ![]() |
Darts | dartscores | 2.2 | ![]() |
Dart Scoring | dartscoring | 4.5 | ![]() |
Das Blinkenlights | dasblinkenlights | 1.7 | ![]() |
DA-Sort | dasort | 3.5 | ![]() |
Big Data | data | 5.4 | ![]() |
Dating time | datingtime | 4.5 | ![]() |
Datum | datum | 1.6 | ![]() |
Dead-End Detector | deadend | 3.9 | ![]() |
Dead Fraction | deadfraction | 5.2 | ![]() |
Death Knight Hero | deathknight | 1.5 | ![]() |
Deathstar | deathstar | 1.8 | ![]() |
Death and Taxes | deathtaxes | 3.2 | ![]() |
Debellatio | debellatio | 6.0 | ![]() |
Debugging | debugging | 5.9 | ![]() |
Decelerating Jump | deceleratingjump | 4.9 | ![]() |
Deceptive Dice | deceptivedice | 3.1 | ![]() |
Decimal deletion | decimaldeletion | 1.4 | ![]() |
Decisions, Decisions | decisions | 2.9 | ![]() |
Deck Randomisation | deckrandomisation | 8.0 | ![]() |
Deduplicating Files | deduplicatingfiles | 3.6 | ![]() |
Deildajöfnuður | deildajofnudur | 2.5 | ![]() |
Deild Goðsagnanna | deildgodsagnanna | 5.3 | ![]() |
Dejavu | dejavu | 3.3 | ![]() |
Déjà vu | dejavu2 | 5.3 | ![]() |
Delft Distance | delftdistance | 3.8 | ![]() |
Delimiter Soup | delimitersoup | 2.0 | ![]() |
Delivering Goods | delivering | 6.3 | ![]() |
Postal Delivery | delivery | 2.9 | ![]() |
Demerit Points | demeritpoints | 6.5 | ![]() |
Destination Unknown | destinationunknown | 3.9 | ![]() |
Detailed Differences | detaileddifferences | 1.4 | ![]() ![]() ![]() |
Detour | detour | 4.8 | ![]() |
D Fyrir Dreki | dfyrirdreki | 1.5 | ![]() |
Diagonal Cut | diagonalcut | 4.0 | ![]() |
Dice Betting | dicebetting | 4.3 | ![]() |
Dice Cup | dicecup | 1.4 | ![]() ![]() |
Dice Game | dicegame | 1.6 | ![]() |
Dick and Jane | dickandjane | 6.0 | ![]() |
Dictionary Compression | dictionary | 9.6 | ![]() |
Dictionary Attack | dictionaryattack | 6.8 | ![]() |
Die Hard | diehard | 3.0 | ![]() |
Difference | difference | 6.8 | ![]() |
A Different Problem | different | 2.8 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Different Distances | differentdistances | 1.8 | ![]() |
Digbuild | digbuild | 4.2 | ![]() |
Digi Comp II | digicomp2 | 5.9 | ![]() |
Digital Speedometer | digitalspeedometer | 3.9 | ![]() |
Digit Division | digitdivision | 4.3 | ![]() |
Digits | digits | 3.2 | ![]() |
Digit Sum | digitsum | 6.0 | ![]() |
Digit Swap | digitswap | 1.2 | ![]() |
Digraphs | digraphs | 6.6 | ![]() |
Dihedral Group | dihedralgroup | 3.6 | ![]() |
Ding Dong Ditch | dingdongditch | 2.2 | ![]() ![]() |
Diplomacy | diplomacy | 5.7 | ![]() |
Dirty Driving | dirtydriving | 3.6 | ![]() |
Disastrous Doubling | disastrousdoubling | 3.7 | ![]() |
Disc District | discdistrict | 2.4 | ![]() |
Disgruntled Judge | disgruntledjudge | 3.6 | ![]() |
Digital display | display | 2.5 | ![]() |
Distance | distance | 3.8 | ![]() |
Distinctive Character | distinctivecharacter | 6.7 | ![]() |
Distracted | distracted | 7.6 | ![]() |
Distributing Poffins | distributingpoffins | 2.2 | ![]() |
Distributing Seats | distributingseats | 6.1 | ![]() |
Diverse Contest | diversecontest | 3.2 | ![]() |
Diverse Cookies | diversecookies | 3.8 | ![]() |
Divide and Conquer | divideandconquer | 7.8 | ![]() |
Divide by 100 | divideby100 | 4.1 | ![]() |
Divisible Subsequences | divisible | 3.2 | ![]() |
Division | division | 7.0 | ![]() |
Divisor Counts | divisorcounts | 4.8 | ![]() |
Divisors | divisors | 5.5 | ![]() |
Divisor Shuffle | divisorshuffle | 4.8 | ![]() |
Divvying Up | divvyingup | 1.5 | ![]() |
DNA | dna | 4.7 | ![]() |
Dobra | dobra | 4.5 | ![]() |
Doctor Kattis | doctorkattis | 4.5 | ![]() |
Dodecaphony | dodecaphony | 3.2 | ![]() |
Dog & Gopher | doggopher | 2.5 | ![]() |
Doing the Container Shuffle | doingthecontainershuffle | 3.7 | ![]() |
Dominating Duos | dominatingduos | 7.1 | ![]() |
Dominoes 2 | dominoes2 | 2.8 | ![]() |
Dominos | dominos | 3.8 | ![]() ![]() |
Don't Be Fake | dontbefake | 2.3 | ![]() |
Don't Fall Down Stairs | dontfalldownstairs | 2.2 | ![]() |
Doodling | doodling | 4.2 | ![]() |
Doorman | doorman | 2.3 | ![]() |
Double Dealing | double | 6.6 | ![]() |
Double Password | doublepassword | 1.6 | ![]() |
Doubleplusgood | doubleplusgood | 2.8 | ![]() |
Doublets | doublets | 8.3 | ![]() |
Double Up | doubleup | 4.2 | ![]() |
Disastrous Downfall | downfall | 4.7 | ![]() |
Disastrous Downtime | downtime | 3.1 | ![]() |
Draga Frá | dragafra | 1.1 | ![]() |
Dragon Ball I | dragonball1 | 5.3 | ![]() |
Dragon Balls | dragonballs | 5.4 | ![]() |
Dragon Dropped | dragondropped | 6.6 | ![]() |
Dragon Maid | dragonmaid | 5.9 | ![]() ![]() |
Draughts | draughts | 3.9 | ![]() |
All Just A Dream | dream | 5.6 | ![]() |
Dreamer | dreamer | 2.3 | ![]() |
Drill Sergeant | drillsergeant | 5.1 | ![]() |
Drinking Song | drinkingsong | 2.4 | ![]() |
Drink Responsibly | drinkresponsibly | 4.9 | ![]() |
Crazy Driver | driver | 4.0 | ![]() |
Drivers | drivers | 4.3 | ![]() |
Driver's Dilemma | driversdilemma | 2.2 | ![]() |
Driving Lanes | drivinglanes | 3.6 | ![]() |
Driving Range | drivingrange | 3.8 | ![]() |
DRM Messages | drmmessages | 1.6 | ![]() |
Dropping Ball | droppingball2 | 4.3 | ![]() |
Dropping Directions | droppingdirections | 3.7 | ![]() |
Drunk Vigenère | drunkvigenere | 1.7 | ![]() |
Daylight Saving Time | dst | 2.1 | ![]() |
Dual Divisibility | dualdivisibility | 4.3 | ![]() |
Dungeon master | dungeon | 3.5 | ![]() |
Dunglish | dunglish | 2.8 | ![]() |
MeTube | dutub | 3.6 | ![]() |
RA Duty Scheduler | dutyscheduler | 3.6 | ![]() |
Dvaput | dvaput | 4.6 | ![]() |
DVDs | dvds | 2.8 | ![]() |
Dvoniz | dvoniz | 7.2 | ![]() ![]() |
Dyslectionary | dyslectionary | 3.1 | ![]() |
Dyson Circle | dysoncircle | 5.4 | ![]() |
Early Winter | earlywinter | 1.8 | ![]() |
The Easiest Problem Is This One | easiest | 1.6 | ![]() |
Easter Eggs | eastereggs | 5.1 | ![]() |
As Easy as CAB | easyascab | 8.2 | ![]() |
Easy Probability | easyprobability | 8.7 | ![]() |
Eating Everything Efficiently | eatingeverything | 4.6 | ![]() |
Eating Out | eatingout | 3.8 | ![]() |
Echo Echo Echo | echoechoecho | 1.2 | ![]() |
e-Coins | ecoins | 4.7 | ![]() |
Economic Inequality | economicinequality | 5.5 | ![]() |
Eeny Meeny | eenymeeny | 2.0 | ![]() |
Efficiency | efficiency | 5.0 | ![]() |
Efficient Exchange | efficientexchange | 4.6 | ![]() |
Egypt | egypt | 1.9 | ![]() |
Eidam-Sand Lair | eidamsandlair | 4.6 | ![]() |
Eiginnöfn | eiginnofn | 2.5 | ![]() |
Eindahraðall | eindahradall | 6.1 | ![]() |
Ekki dauði opna inni | ekkidaudi | 1.5 | ![]() |
Ekki minn forseti | ekkiminnforseti | 7.6 | ![]() |
Eko | eko | 3.7 | ![]() |
Election (1) | election | 5.2 | ![]() |
Election (2) | election2 | 2.5 | ![]() |
Election Paradox | electionparadox | 1.7 | ![]() |
Electrical Outlets | electricaloutlets | 1.6 | ![]() |
Elementary Math | elementarymath | 4.7 | ![]() |
Elevating the Prank | elevatingtheprank | 1.6 | ![]() |
Elevator Trouble | elevatortrouble | 2.3 | ![]() |
Eligibility | eligibility | 1.6 | ![]() |
The Embarrassed Cryptographer | embarrassedcryptographer | 5.8 | ![]() |
Emergency Contest Running | emergency | 4.2 | ![]() |
Emag Eht Htiw Em Pleh | empleh | 1.8 | ![]() |
Emptying the Baltic | emptyingbaltic | 5.0 | ![]() |
Encoded Coordinates | encodedcoordinates | 5.6 | ![]() |
Encoded Message | encodedmessage | 1.6 | ![]() |
Endless Knight | endlessknight | 7.4 | ![]() |
The End of the World | endoftheworld | 4.8 | ![]() |
Enduro | enduro | 3.7 | ![]() |
Endurvinnsla | endurvinnsla | 1.9 | ![]() |
Enemy Division | enemydivision | 5.6 | ![]() |
Escape from Enemy Territory | enemyterritory | 4.6 | ![]() |
Engaging with Loyal Customers | engaging | 6.4 | ![]() |
Engineering English | engineeringenglish | 2.3 | ![]() |
Enlarging Hash Tables | enlarginghashtables | 2.8 | ![]() |
Entering the Time | enteringthetime | 5.1 | ![]() |
Entertainment Box | entertainmentbox | 5.7 | ![]() |
Entirely Unsorted Sequences | entirelyunsortedsequences | 3.8 | ![]() |
Envious Exponents | enviousexponents | 5.2 | ![]() |
EpigDanceOff | epigdanceoff | 2.0 | ![]() |
Equal Sums (Easy) | equalsumseasy | 2.9 | ![]() |
Equations | equations | 7.2 | ![]() |
Linear Equation Solver | equationsolver | 6.0 | ![]() |
Partial Linear Equation Solver | equationsolverplus | 7.5 | ![]() |
Equilibrium Mobile | equilibrium | 3.7 | ![]() |
Proving Equivalences | equivalences | 5.6 | ![]() |
Equivalent Exchange | equivalentexchange | 7.4 | ![]() |
Erase Securely | erase | 1.8 | ![]() |
Erdős Numbers | erdosnumbers | 5.0 | ![]() |
Eroding Pillars | erodingpillars | 6.2 | ![]() |
Erosion Filter | erosionfilter | 4.7 | ![]() |
Errands | errands | 6.1 | ![]() |
Erratic Ants | erraticants | 4.8 | ![]() |
Escape Plan | escapeplan | 5.5 | ![]() |
Escape Routes | escaperoutes | 8.5 | ![]() |
Escape Wall Maria | escapewallmaria | 2.9 | ![]() |
Esej | esej | 3.6 | ![]() |
Esoteric Spells | esotericspells | 3.9 | ![]() |
Espresso! | espresso | 2.1 | ![]() |
Espresso Bucks | espressobucks | 2.3 | ![]() |
Integer Estate Agent | estate | 5.1 | ![]() |
Estimating the Area of a Circle | estimatingtheareaofacircle | 1.6 | ![]() |
Estimation | estimation | 4.2 | ![]() |
ETA | eta | 3.7 | ![]() |
Euclidean TSP | euclideantsp | 2.3 | ![]() |
Euclid's Game | euclidsgame | 4.4 | ![]() |
Eulerian Graphs | eulerian | 2.8 | ![]() |
Eulerian Graphs 2 | eulerian2 | 4.3 | ![]() |
Eulerian Path | eulerianpath | 4.7 | ![]() |
Euler's Number | eulersnumber | 2.3 | ![]() |
European Trip | europeantrip | 3.5 | ![]() |
Evening Out 1 | eveningout1 | 2.5 | ![]() |
Evening Out 2 | eveningout2 | 6.4 | ![]() |
EvenOdd | evenodd | 6.3 | ![]() |
Event Planning | eventplanning | 2.2 | ![]() |
Even Up Solitaire | evenup | 2.3 | ![]() |
I've Been Everywhere, Man | everywhere | 1.4 | ![]() |
Evil Straw Warts Live | evilstraw | 2.9 | ![]() |
Exact Change | exactchange2 | 5.0 | ![]() |
Exactly Electrical | exactlyelectrical | 2.1 | ![]() ![]() ![]() |
Exam | exam | 2.2 | ![]() |
Exam Manipulation | exammanipulation | 4.3 | ![]() |
Excavator Expedition | excavatorexpedition | 5.4 | ![]() |
Excellent Engineers | excellentengineers | 5.7 | ![]() |
Exchange Rates | exchangerates | 5.2 | ![]() |
Kindergarten Excursion | excursion | 3.6 | ![]() |
Exits in Excess | exitsinexcess | 4.1 | ![]() |
Ex Officio | exofficio | 5.3 | ![]() |
Exoplanet Lighthouse | exoplanetlighthouse | 2.6 | ![]() |
Expanding Rods | expandingrods | 6.5 | ![]() |
Expected Earnings | expectedearnings | 1.8 | ![]() |
Expeditious Cubing | expeditiouscubing | 5.2 | ![]() |
Explosion Exploit | explosion | 4.9 | ![]() |
Exponial | exponial | 5.3 | ![]() |
Eye of Sauron | eyeofsauron | 1.4 | ![]() |
Factor-Free Tree | factorfree | 5.9 | ![]() |
Factor-Full Tree | factorfulltree | 7.3 | ![]() |
Factorial Power | factorialpower | 3.9 | ![]() |
Factors | factors | 5.8 | ![]() |
Factovisors | factovisors | 5.6 | ![]() |
Factstone Benchmark | factstone | 4.1 | ![]() |
Fading Wind | fadingwind | 1.5 | ![]() |
Fair Bandwidth Sharing | fairbandwidthsharing | 6.2 | ![]() |
Fair Division (1) | fairdivision | 3.7 | ![]() |
Fair Division (2) | fairdivision2 | 5.4 | ![]() |
Fair Play | fairplay | 3.6 | ![]() |
Fair Warning | fairwarning | 3.7 | ![]() |
Fake Arithmetic Sequence | fakearithmeticsequence | 3.6 | ![]() |
Fake Graph Theory | fakegraphtheory | 5.8 | ![]() |
Fake Scoreboard | fakescoreboard | 7.9 | ![]() |
Faktor | faktor | 1.4 | ![]() ![]() ![]() |
Falcon Dive | falcondive | 3.2 | ![]() |
Falling Mugs | falling | 3.6 | ![]() |
Falling Apart | fallingapart | 1.6 | ![]() |
Falling Snow | fallingsnow2 | 1.4 | ![]() |
False Sanctum | falsesanctum | 4.4 | ![]() |
False Sanctum Act 2 | falsesanctum2 | 8.2 | ![]() |
False Sense of Security | falsesecurity | 1.9 | ![]() |
Family DAG | familydag | 6.4 | ![]() |
Family Fares | familyfares | 3.7 | ![]() |
Fantasy Draft | fantasydraft | 4.0 | ![]() |
Farey Sequence Length | farey | 3.4 | ![]() |
Farey Sums | fareysums | 4.8 | ![]() |
Färgrobot | fargrobot | 2.0 | ![]() |
Farmer's Field | farmersfield | 6.6 | ![]() |
Fastest Available Route | fastestavailableroute | 2.8 | ![]() |
Fast Food Prizes | fastfood | 2.0 | ![]() |
Faulty Robot | faultyrobot | 3.7 | ![]() |
A Favourable Ending | favourable | 4.2 | ![]() |
FBI Universal Control Numbers | fbiuniversal | 2.3 | ![]() |
Feistel Fun | feistelfun | 8.0 | ![]() |
Fence Bowling | fencebowling | 3.0 | ![]() |
Fend Off Titan | fendofftitan | 2.5 | ![]() |
Fenwick Tree | fenwick | 4.1 | ![]() |
Ferry Loading III | ferryloading3 | 4.9 | ![]() |
Ferry Loading IV | ferryloading4 | 2.6 | ![]() |
Ferskasta Jarmið | ferskastajarmid | 2.1 | ![]() |
Fiat | fiat | 5.0 | ![]() |
Fibonacci Cycles | fibonaccicycles | 3.2 | ![]() |
Minimal Fibonacci Sums | fibonaccisum | 2.4 | ![]() |
Fibs og Dibs | fibsogdibs | 5.9 | ![]() |
Fibonacci Tour | fibtour | 5.6 | ![]() |
Field Trip | fieldtrip | 2.2 | ![]() |
Framtíðar FIFA | fifa | 1.2 | ![]() |
Fifty Shades of Pink | fiftyshades | 1.5 | ![]() |
Fight to Survive | fighttosurvive | 3.2 | ![]() |
Figurine Figures | figurinefigures | 7.5 | ![]() |
Filip | filip | 1.5 | ![]() ![]() ![]() |
Fimmtudagstilboð | fimmtudagstilbod | 1.5 | ![]() |
Final Exam (1) | finalexam | 9.1 | ![]() |
Final Exam (2) | finalexam2 | 1.6 | ![]() |
Financial Planning | financialplanning | 4.2 | ![]() |
Finding an A | findingana | 1.3 | ![]() |
Finding Lines | findinglines | 6.0 | ![]() |
Find my Family | findmyfamily | 4.2 | ![]() |
Find Poly | findpoly | 3.0 | ![]() |
Find the Graph | findthegraph | 3.4 | ![]() |
Find The Root | findtheroot | 3.6 | ![]() |
Fire | fire2 | 4.1 | ![]() |
Fire! | fire3 | 5.7 | ![]() |
Firefly | firefly | 3.5 | ![]() |
Fire Station | firestation | 6.2 | ![]() |
Firetrucks Are Red | firetrucksarered | 4.4 | ![]() |
First of Her Name | firstofhername | 5.7 | ![]() |
Fishmongers | fishmongers | 3.4 | ![]() |
FizzBuzz (1) | fizzbuzz | 1.4 | ![]() ![]() ![]() |
FizzBuzz (2) | fizzbuzz2 | 2.9 | ![]() |
Fizz Buzz | fizzbuzz3 | 7.6 | ![]() |
Fjöldi Bókstafa | fjoldibokstafa | 1.4 | ![]() |
Flag Quiz | flagquiz | 3.9 | ![]() |
Flatbökuveisla | flatbokuveisla | 1.1 | ![]() |
A Flea on a Chessboard | fleaonachessboard | 6.0 | ![]() |
Flexible Spaces | flexible | 1.7 | ![]() |
Fleytitala | fleytitala | 2.9 | ![]() |
Flight Planning | flight | 7.0 | ![]() |
Flip Five | flipfive | 2.6 | ![]() |
Flip Flow | flipflow | 2.1 | ![]() |
Flipping Cards | flippingcards | 6.6 | ![]() |
Flipping Patties | flippingpatties | 2.4 | ![]() |
Flooding Fields | floodingfields | 6.3 | ![]() |
Flood-It | floodit | 3.9 | ![]() |
Floor Plan | floorplan | 3.9 | ![]() ![]() |
Floppy Music | floppy | 5.3 | ![]() |
Flower Garden | flowergarden | 3.9 | ![]() |
No Trees But Flowers | flowers | 5.6 | ![]() |
Flowery Trails | flowerytrails | 3.5 | ![]() |
Flow Free | flowfree | 3.6 | ![]() |
Flow Layout | flowlayout | 1.9 | ![]() |
Flow Shop | flowshop | 2.3 | ![]() |
Fluortanten | fluortanten | 3.2 | ![]() |
Flygskam | flygskam | 4.5 | ![]() |
Flying Safely | flyingsafely | 1.8 | ![]() |
Fly Swatter | flyswatter | 5.6 | ![]() |
Flýtibaka | flytibaka | 1.4 | ![]() |
Birthday Memorization | fodelsedagsmemorisering | 1.7 | ![]() |
Folded Map | foldedmap | 5.3 | ![]() |
Folding a Cube | foldingacube | 5.5 | ![]() |
Font | font | 3.9 | ![]() |
Fountain | fontan | 2.0 | ![]() |
Food Mixing | foodmixing | 8.1 | ![]() |
Fooling Around | foolingaround | 5.4 | ![]() |
Foosball Dynasty | foosball | 4.5 | ![]() |
Forced Choice | forcedchoice | 1.5 | ![]() |
Forest Fires | forestfires | 3.2 | ![]() |
Forest for the Trees | forestforthetrees | 4.9 | ![]() |
Forest Fruits | forestfruits | 4.2 | ![]() |
Forests | forests | 3.4 | ![]() |
Four Die Rolls | fourdierolls | 2.6 | ![]() |
Four Square | foursquare | 6.4 | ![]() |
Fractal | fractal2 | 6.4 | ![]() |
Fractal Area | fractalarea | 2.9 | ![]() |
Continued Fraction | fraction | 3.6 | ![]() |
Fractional Lotion | fractionallotion | 2.9 | ![]() |
Framvindustika | framvindustika | 3.1 | ![]() |
Freckles | freckles | 3.3 | ![]() |
FreeCell | freecell | 5.8 | ![]() |
Free Food | freefood | 1.5 | ![]() |
Free Weights | freeweights | 4.0 | ![]() |
Freight Train | freighttrain | 4.7 | ![]() |
Friday the 13th | friday | 2.1 | ![]() |
Fridge | fridge | 3.5 | ![]() |
Froggie | froggie | 6.1 | ![]() |
From A to B | fromatob | 2.5 | ![]() |
Frosh Week (1) | froshweek | 4.1 | ![]() |
Frosh Week (2) | froshweek2 | 2.2 | ![]() |
Frosting on the Cake | frosting | 4.0 | ![]() |
Frozen Rose-Heads | frozenrose | 5.1 | ![]() |
Fruit Baskets | fruitbaskets | 4.6 | ![]() |
Frumtölutalning | frumtolutalning | 8.3 | ![]() |
Frustrated Queue | frustratedqueue | 5.1 | ![]() |
Full Tank | fulltank | 5.1 | ![]() |
Functional Fun | functionalfun | 2.1 | ![]() |
Fundamental Neighbors | fundamentalneighbors | 3.2 | ![]() |
Fun House | funhouse | 2.1 | ![]() |
Fuzzy Family Tree | fuzzyfamilytree | 4.6 | ![]() |
FYI | fyi | 1.3 | ![]() |
Fyrirtækjanafn | fyrirtaekjanafn | 2.0 | ![]() |
Galactic Warlords | galactic | 6.8 | ![]() |
Galactic Sabotage | galacticsabotage | 7.7 | ![]() |
Game Night | gamenight | 4.8 | ![]() |
Game Rank | gamerank | 3.6 | ![]() |
Game Suggestions | gamesuggestions | 4.8 | ![]() |
Game Theory | gametheory | 3.7 | ![]() |
Gandalf's Spell | gandalfsspell | 2.1 | ![]() |
Gangur | gangur | 2.7 | ![]() |
Gas Station Numbers | gasstationnumbers | 7.9 | ![]() |
Gathering in Yorknew | gatheringinyorknew | 5.8 | ![]() |
GCD | gcd | 1.5 | ![]() |
GCD and LCM | gcdandlcm | 5.8 | ![]() |
GCDs | gcds | 5.0 | ![]() |
GCD Sum | gcdsum | 8.1 | ![]() |
GCD Sum 2 | gcdsum2 | 6.8 | ![]() |
Galactic Collegiate Programming Contest | gcpc | 4.4 | ![]() |
GCVWR | gcvwr | 1.4 | ![]() |
Gear Changing | gearchanging | 3.9 | ![]() |
Gears | gears2 | 3.5 | ![]() |
Gear Wheels | gearwheels | 6.9 | ![]() |
Geezer Scripts | geezerscripts | 2.9 | ![]() |
Genealogical Research | genealogical | 3.8 | ![]() |
Gene Block | geneblock | 2.4 | ![]() |
Gene Folding | genefolding | 3.8 | ![]() |
Chinese Remainder Theorem (non-relatively prime moduli) | generalchineseremainder | 3.8 | ![]() |
Generalized Recursive Functions | generalizedrecursivefunctions | 4.6 | ![]() |
Generators | generators | 5.4 | ![]() |
Genetics | genetics2 | 7.2 | ![]() |
Genetic Search | geneticsearch | 2.2 | ![]() |
Genius | genius | 3.3 | ![]() |
George | george | 2.1 | ![]() |
Geppetto | geppetto | 2.5 | ![]() |
Gerrymandering | gerrymandering | 1.6 | ![]() |
Get Shorty | getshorty | 3.5 | ![]() |
Getting Through | gettingthrough | 5.6 | ![]() |
Get to Work | gettowork | 2.6 | ![]() |
Ghostbusters 3 | ghostbusters3 | 4.0 | ![]() |
Ghost Leg | ghostleg | 1.5 | ![]() |
Gig Combinatorics | gigcombinatorics | 3.8 | ![]() |
Ginger Candy | gingercandy | 5.7 | ![]() |
Gini Stuðull | ginistudull | 4.3 | ![]() |
Git Good | gitgood | 2.8 | ![]() |
Glasses Foggy, Mom's Spaghetti | glassesfoggymomsspaghetti | 2.3 | ![]() |
GlitchBot | glitchbot | 1.9 | ![]() |
Global Warming | globalwarming | 6.1 | ![]() |
Glyph Recognition | glyphrecognition | 2.7 | ![]() |
GMO | gmo | 4.7 | ![]() |
Gnoll Hypothesis | gnollhypothesis | 4.3 | ![]() |
Goat Rope | goatrope | 1.6 | ![]() |
Goblin Garden Guards | goblingardenguards | 6.0 | ![]() |
Candy | godis | 5.7 | ![]() |
Godzilla | godzilla | 5.9 | ![]() |
Going Dutch | goingdutch | 7.1 | ![]() |
Going to Seed (1) | goingtoseed | 6.3 | ![]() |
Getting Gold | gold | 2.6 | ![]() |
Goldbach's Conjecture | goldbach2 | 2.1 | ![]() |
Golf Bot | golfbot | 6.1 | ![]() |
Golomb Rulers | golombrulers | 3.1 | ![]() |
Floor Area | golvyta | 5.6 | ![]() |
Good Coalition | goodcoalition | 3.9 | ![]() |
Good Messages | goodmessages | 4.5 | ![]() |
Good Morning! | goodmorning | 2.8 | ![]() |
Goofy Geometry | goofy | 4.8 | ![]() |
Goomba Stacks | goombastacks | 1.5 | ![]() |
Gopher II | gopher2 | 4.0 | ![]() |
The Gourmet | gourmeten | 1.8 | ![]() ![]() |
Grade Curving | gradecurving | 4.9 | ![]() |
Grading | grading | 1.6 | ![]() |
Grading on a Curve | gradingonacurve | 5.5 | ![]() |
Graduation Guarantee | graduationguarantee | 3.7 | ![]() |
Grand Opening | grandopening | 6.2 | ![]() |
Grandpa Bernie | grandpabernie | 2.6 | ![]() |
Granica | granica | 5.7 | ![]() |
Through the Grapevine | grapevine | 3.9 | ![]() |
Watering Grass | grass | 4.2 | ![]() |
Gregory the Grasshopper | grasshopper | 3.4 | ![]() |
Grass Seed Inc | grassseed | 1.4 | ![]() |
Gravamen | gravamen | 5.9 | ![]() |
Grazed Grains | grazedgrains | 2.8 | ![]() |
GREAT + SWERC = PORTO | greatswercporto | 4.4 | ![]() |
Greedily Increasing Subsequence | greedilyincreasing | 1.9 | ![]() |
Greedy Increasing Subsequences | greedyincreasingsubsequences | 6.3 | ![]() |
Greedy Polygons | greedypolygons | 1.7 | ![]() |
Greedy Polygons Revisited | greedypolygons2 | 5.2 | ![]() |
Greeting Card | greetingcard | 3.9 | ![]() |
Greetings! | greetings2 | 1.4 | ![]() |
Grid | grid | 2.6 | ![]() |
Grid Game | gridgame | 5.2 | ![]() |
Grid Magic | gridmagic | 2.6 | ![]() |
Grid MST | gridmst | 6.1 | ![]() |
What's on the Grille | grille | 3.6 | ![]() |
Groupthink | groupthink | 2.3 | ![]() |
Growling Gears | growlinggears | 1.8 | ![]() |
Gruesome Cave | gruesomecave | 4.9 | ![]() |
Guardian of Decency | guardianofdecency | 5.1 | ![]() |
Guess The Number | guess | 2.8 | ![]() |
Guessing Game | guessinggame | 3.2 | ![]() |
I Can Guess the Data Structure! | guessthedatastructure | 3.0 | ![]() |
Guess The Digits | guessthedigits | 8.5 | ![]() |
Guess the Numbers | guessthenumbers | 8.1 | ![]() |
Guess Who | guesswho | 1.7 | ![]() |
Guilds | guilds | 5.1 | ![]() |
Guillaume | guillaume | 3.4 | ![]() |
Gullpeningastaflar | gullpeningastaflar | 4.3 | ![]() |
Gym Leader's Territory | gymleadersterritory | 3.4 | ![]() |
Haiku | haiku | 5.1 | ![]() |
Watch Out For Those Hailstones! | hailstone | 2.3 | ![]() |
Hailstone Sequences | hailstone2 | 1.7 | ![]() |
Half a Cookie | halfacookie | 1.8 | ![]() |
Hamming Ellipses | hammingellipses | 2.9 | ![]() |
Han | han | 4.1 | ![]() |
Hanging Out on the Terrace | hangingout | 1.5 | ![]() |
Hangman | hangman | 1.6 | ![]() |
Happy and Unhappy Numbers | happyandunhappynumbers | 7.1 | ![]() |
Happy Happy Prime Prime | happyprime | 2.1 | ![]() |
Hard Array Problem | hardarray | 7.4 | ![]() |
Hard Drive | harddrive | 3.5 | ![]() |
Hardware | hardware | 2.2 | ![]() |
Hardwood Species | hardwoodspecies | 2.6 | ![]() |
Harshad Numbers | harshadnumbers | 1.4 | ![]() |
Hash | hash | 8.8 | ![]() |
String Hashing | hashing | 5.3 | ![]() |
Haughty Cuisine | haughtycuisine | 1.8 | ![]() |
Haunted Graveyard | hauntedgraveyard | 6.3 | ![]() |
Hay Bales | haybales | 5.7 | ![]() |
Hay Points | haypoints | 2.1 | ![]() |
Head Guard | headguard | 2.3 | ![]() |
Binary Heap | heap | 2.2 | ![]() |
Heart Rate | heartrate | 1.5 | ![]() |
Heating Up | heatingup | 6.1 | ![]() |
Height Ordering | height | 2.1 | ![]() |
Homework (1) | heimavinna | 1.5 | ![]() |
Heir's Dilemma | heirsdilemma | 1.6 | ![]() |
Heliocentric | heliocentric | 2.1 | ![]() |
Hello World! | hello | 1.1 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Government Help | help | 6.3 | ![]() |
Help! | help2 | 5.8 | ![]() |
Help a PhD candidate out! | helpaphd | 1.6 | ![]() |
Helpful Currents | helpfulcurrents | 6.7 | ![]() |
Help Me With The Game | helpme | 3.0 | ![]() |
What Does It Mean | heritage | 4.8 | ![]() |
Herman | herman | 1.8 | ![]() |
Hermits | hermits | 3.0 | ![]() |
Heroes of Velmar | heroesofvelmar | 2.0 | ![]() |
Hero Leveling | heroleveling | 7.4 | ![]() |
Hexagon Game | hexagon | 6.1 | ![]() |
Hexagonal Rooks | hexagonalrooks | 4.7 | ![]() |
Hidden Password | hidden | 2.4 | ![]() |
Hidden Words | hiddenwords | 6.6 | ![]() |
Hiding Chickens | hidingchickens | 6.3 | ![]() |
Hiding Places | hidingplaces | 1.7 | ![]() |
Highest Hill | highesthill | 4.1 | ![]() |
High Score | highscore2 | 5.7 | ![]() |
Highway to Mount Fansipan | highwaytomountfansipan | 4.1 | ![]() |
Hill Number | hillnumbers | 5.4 | ![]() |
H-Index | hindex | 3.4 | ![]() |
Hipp Hipp | hipphipp | 1.1 | ![]() |
Hipp Hipp Húrra | hipphipphurra | 1.2 | ![]() |
Hipster Jazz | hipsterjazz | 6.7 | ![]() |
Hired Help | hiredhelp | 6.0 | ![]() |
Hissing Microphone | hissingmicrophone | 1.3 | ![]() |
Hittast | hittast | 4.4 | ![]() |
Hitting the Targets | hittingtargets | 1.6 | ![]() |
Hlaupafmæli | hlaupafmaeli | 2.9 | ![]() |
Hnappasetningaskipti | hnappasetningaskipti | 2.2 | ![]() |
Semi-prime H-numbers | hnumbers | 5.1 | ![]() |
Höfundaleit | hofundaleit | 3.0 | ![]() |
Hogwarts | hogwarts2 | 5.1 | ![]() |
Holey N-Queens (Batman) | holeynqueensbatman | 2.6 | ![]() |
Holiday Stars | holidaystars | 6.0 | ![]() |
Homework (2) | homework | 7.1 | ![]() |
Honeycomb Walk | honey | 2.8 | ![]() |
Honey Heist | honeyheist | 3.5 | ![]() |
Honi | honi | 3.2 | ![]() |
Hópavinna | hopavinna | 2.9 | ![]() |
Hoppers | hoppers | 3.8 | ![]() |
Hopscotch | hopscotch | 5.6 | ![]() |
Hopscotch 50 | hopscotch50 | 2.6 | ![]() |
Hopscotch 500 | hopscotch500 | 7.4 | ![]() |
Horror List | horror | 2.8 | ![]() |
Horror Film Night | horrorfilmnight | 3.3 | ![]() |
Hot Dogs in Manhattan | hotdogs | 5.9 | ![]() |
Hot Hike | hothike | 1.9 | ![]() |
Hot Springs | hotsprings | 2.7 | ![]() |
House Lawn | houselawn | 4.1 | ![]() |
House of Cards | houseofcards | 3.6 | ![]() |
Howl | howl | 1.9 | ![]() |
How Many Digits | howmanydigits | 4.1 | ![]() |
How many 0's | howmanyzeros | 3.8 | ![]() |
Hraðgreining | hradgreining | 1.2 | ![]() |
H to O | htoo | 2.7 | ![]() |
Human Cannonball Run | humancannonball | 2.2 | ![]() |
The Amazing Human Cannonball | humancannonball2 | 1.6 | ![]() |
Human Observation | humanobservation | 5.6 | ![]() |
Hungarian Services | hungarianservices | 4.1 | ![]() |
Hunt the Wumpus | huntthewumpus | 2.1 | ![]() |
Hurricane Danger! | hurricanedanger | 3.9 | ![]() |
Hvert Skal Mæta | hvertskalmaeta | 1.5 | ![]() |
Hyacinth | hyacinth | 5.2 | ![]() |
Hydra's Heads | hydrasheads | 1.9 | ![]() |
Hamiltonian Hypercube | hypercube | 3.5 | ![]() |
Pascal Hyper-Pyramids | hyperpyramids | 4.7 | ![]() |
iBoard | iboard | 2.4 | ![]() |
Ice Cream | icecream2 | 5.9 | ![]() |
Ice Cream Machines | icecreammachines | 7.3 | ![]() |
Icons in the Toolbar | icons | 8.0 | ![]() |
I Could Have Won | icouldhavewon | 3.2 | ![]() |
ICPC Awards | icpcawards | 1.7 | ![]() ![]() |
ICPC Camp | icpccamp | 5.2 | ![]() |
ICPC Record Matching | icpcrecordmatching | 4.2 | ![]() |
ICPC Team Generation | icpcteamgeneration | 4.9 | ![]() |
ICPC Team Selection | icpcteamselection | 2.9 | ![]() |
An I for An Eye | iforaneye | 4.4 | ![]() |
Ignore the Garbage | ignore | 3.1 | ![]() |
Iks | iks | 3.1 | ![]() |
Illiteracy | illiteracy | 3.1 | ![]() |
Illumination | illumination | 3.5 | ![]() |
Illuminati Spotti | illuminatispotti | 2.1 | ![]() |
Image Decoding | imagedecoding | 3.3 | ![]() |
Image Processing | imageprocessing | 1.8 | ![]() |
IMO Harder Problem | imoharderproblem | 6.3 | ![]() |
Imperfect GPS | imperfectgps | 4.4 | ![]() |
Implementation Irregularities | implementationirregularities | 3.2 | ![]() |
Import Spaghetti | importspaghetti | 5.4 | ![]() |
Mission Improbable | improbable | 4.3 | ![]() |
#includescoring | includescoring | 6.0 | ![]() |
Incognito | incognito | 3.1 | ![]() |
Increasing Subsequence | increasingsubsequence | 3.9 | ![]() |
Indoorienteering | indoorienteering | 6.8 | ![]() |
An Industrial Spy | industrialspy | 2.9 | ![]() |
Infinite 2D Array | infinite2darray | 5.6 | ![]() |
Infinite Race | infiniterace2 | 2.3 | ![]() |
Infinite Slides | infiniteslides | 3.3 | ![]() |
In Flagrante Delicto | inflagrantedelicto | 4.6 | ![]() |
Inflation (1) | inflation | 2.1 | ![]() |
Inflation (2) | inflation2 | 3.3 | ![]() |
A Question of Ingestion | ingestion | 5.3 | ![]() |
Inheritance | inheritance | 3.6 | ![]() |
Input Scandal | inputscandal | 1.8 | ![]() |
Inquiry I | inquiryi | 2.5 | ![]() |
Tree Insertion | insert | 2.9 | ![]() |
Inspecting Illumination | inspectingillumination | 5.3 | ![]() |
Installing Apps | installingapps | 6.8 | ![]() |
Integer Division | integerdivision | 3.3 | ![]() |
Integer Lists | integerlists | 4.7 | ![]() |
Intelligence Infection | intelligenceinfection | 5.0 | ![]() |
Interactive Tic-Tac-Toe | interactivetictactoe | 5.7 | ![]() |
Intercept | intercept | 6.7 | ![]() |
Interesting Integers | interestingintegers | 4.6 | ![]() |
Intergalactic Bidding | intergalacticbidding | 4.1 | ![]() |
International Dates | internationaldates | 1.6 | ![]() |
Interplanetary Tunnels | interplanetarytunnels | 2.2 | ![]() |
Interpreter | interpreter | 3.5 | ![]() |
Intersecting Rectangles | intersectingrectangles | 5.8 | ![]() |
Interval Cover | intervalcover | 5.3 | ![]() |
Interval Scheduling (1) | intervalscheduling | 1.8 | ![]() ![]() |
Interval Scheduling (2) | intervalscheduling2 | 4.0 | ![]() |
Interview Question | interviewquestion | 3.2 | ![]() |
Interview Queue | interviewqueue | 7.5 | ![]() |
Integer Rotation | introtation | 6.1 | ![]() |
Invasion | invasion | 5.2 | ![]() |
Inventing Test Data | inventing | 5.1 | ![]() |
Inverse Factorial | inversefactorial | 5.2 | ![]() ![]() ![]() |
Inverted Deck | inverteddeck | 4.5 | ![]() |
Invoker (Easy) | invokereasy | 2.4 | ![]() |
Invoker (Hard) | invokerhard | 2.7 | ![]() |
IOU | iou | 5.2 | ![]() |
I Repeat Myself I Repeat Myself I Repeat | irepeatmyself | 2.5 | ![]() |
Iron and Coal | ironcoal | 4.9 | ![]() |
Irrational Division | irrationaldivision | 4.1 | ![]() |
Is-A Has-A Who Knowz-A | isahasa | 7.4 | ![]() |
ISBN Conversion | isbnconversion | 5.4 | ![]() |
Is It Even | isiteven | 2.9 | ![]() |
IsItHalloween.com | isithalloween | 1.4 | ![]() ![]() ![]() ![]() |
Island Buses | island | 6.7 | ![]() |
Island Alliances | islandalliances | 6.5 | ![]() |
Island Hopping | islandhopping | 2.4 | ![]() |
Islands in the Data Stream | islands | 2.8 | ![]() |
Islands | islands3 | 1.8 | ![]() |
Isomorphic Inversion | isomorphicinversion | 5.5 | ![]() |
Is Y a Vowel | isyavowel | 1.3 | ![]() |
It Can Be Arranged | itcanbearranged | 4.7 | ![]() |
God Save the i-th Queen | ith | 5.8 | ![]() |
It's a Mod, Mod, Mod, Mod World | itsamodmodmodmodworld | 7.4 | ![]() |
It's a Secret | itsasecret | 5.5 | ![]() |
Ivana | ivana | 5.7 | ![]() |
I Wanna Be The Very Best | iwannabe | 3.0 | ![]() |
Jabuke (1) | jabuke | 1.7 | ![]() |
Jabuke (2) | jabuke2 | 7.3 | ![]() |
Jack-O'-Lantern Juxtaposition | jackolanternjuxtaposition | 1.2 | ![]() |
Jackpot | jackpot | 3.3 | ![]() |
Jack The Lumberjack | jackthelumberjack | 4.8 | ![]() |
Tag | jage | 3.0 | ![]() |
Jailbreak | jailbreak | 5.2 | ![]() |
Jamboree | jamboree | 2.8 | ![]() |
Jane Eyre | janeeyre | 3.7 | ![]() |
Janitor Troubles | janitortroubles | 1.5 | ![]() |
Jazz It Up! | jazzitup | 2.1 | ![]() |
Jelly Raid | jellyraid | 6.0 | ![]() |
Jet Lag | jetlag | 4.0 | ![]() |
Jetpack | jetpack | 5.7 | ![]() |
Jet Set | jetset | 4.5 | ![]() |
Jewelry Box | jewelrybox | 1.8 | ![]() |
Jigsaw | jigsaw | 4.3 | ![]() |
Job Switching | jobbyte | 2.5 | ![]() |
Job Expenses | jobexpenses | 1.5 | ![]() |
Chicken Joggers | joggers | 5.1 | ![]() |
Jogging Trails | joggingtrails | 5.0 | ![]() |
Jogurt | jogurt | 6.7 | ![]() |
John's Book Stack | johnsstack | 6.7 | ![]() |
Joining Points | joiningpoints | 4.0 | ![]() |
Join Strings | joinstrings | 5.5 | ![]() |
Joint Attack | jointattack | 2.6 | ![]() |
Joint Jog Jam | jointjogjam | 1.7 | ![]() |
Jolly Jumpers | jollyjumpers | 2.9 | ![]() |
Journey of the Repetitor | journeyoftherepetitor | 5.2 | ![]() |
Joyless Game | joylessgame | 4.1 | ![]() |
Judging Troubles | judging | 2.5 | ![]() |
Judging Moose | judgingmoose | 1.4 | ![]() |
Juggling Patterns | jugglingpatterns | 5.7 | ![]() |
Jug Hard | jughard | 3.5 | ![]() |
Julmust | julmust | 2.5 | ![]() |
Jumbo Javelin | jumbojavelin | 1.3 | ![]() |
Jumping Monkey | jumpingmonkey | 6.3 | ![]() |
Jumping Yoshi | jumpingyoshi | 6.1 | ![]() |
Space Junk | junk | 4.2 | ![]() |
Jupiter Orbiter | jupiter | 6.1 | ![]() |
Jurassic Jigsaw | jurassicjigsaw | 2.5 | ![]() |
Jury Jeopardy | juryjeopardy | 2.3 | ![]() |
Just A Minute | justaminute | 2.0 | ![]() |
Just Do It | justdoit | 7.1 | ![]() |
Just for Sidekicks | justforsidekicks | 3.8 | ![]() |
Just Passing Through | justpassingthrough | 5.1 | ![]() |
Kafkaesque | kafkaesque | 2.1 | ![]() |
Kaguya Wa Saketakunai | kaguyawasaketakunai | 8.7 | ![]() |
Cookies | kakor | 2.9 | ![]() |
Kaleidoscopic Palindromes | kaleidoscopicpalindromes | 2.8 | ![]() |
Kanna's Friendship | kannafriendship | 4.7 | ![]() ![]() |
Running Race | kaploeb | 3.1 | ![]() |
Karl Coder | karlcoder | 4.0 | ![]() |
Karte | karte | 1.6 | ![]() |
Throwing bridges | kastabroar | 8.1 | ![]() |
Kastenlauf | kastenlauf | 3.0 | ![]() |
Kattis's Quest | kattissquest | 3.2 | ![]() |
Kayaking Trip | kayaking | 4.3 | ![]() |
kcuD dlanoD | kcuddlanod | 1.8 | ![]() |
Keep it Cool | keepitcool | 2.8 | ![]() |
Kemija (1) | kemija | 8.6 | ![]() |
Kemija (2) | kemija08 | 1.7 | ![]() |
Keyboarding | keyboard | 5.1 | ![]() |
Keyboards in Concert | keyboardconcert | 3.3 | ![]() |
Keyboardd | keyboardd | 2.6 | ![]() |
Key Item Recovery | keyitemrecovery | 4.5 | ![]() |
Keylogger | keylogger | 2.6 | ![]() |
Matrix Keypad | keypad | 3.6 | ![]() |
Keys, Phone, Wallet | keysphonewallet | 1.2 | ![]() |
The Key to Cryptography | keytocrypto | 1.8 | ![]() |
Key to Knowledge | keytoknowledge | 7.7 | ![]() |
Keywords | keywords | 2.0 | ![]() |
Kiki Boba | kikiboba | 1.4 | ![]() |
Killing Chaos | killingchaos | 5.8 | ![]() |
Kínahvísl | kinahvisl | 1.4 | ![]() |
K-In-A-Row | kinarow | 4.0 | ![]() |
Kinda Ok Array Problem | kindaokarray | 5.8 | ![]() |
Kindergarten | kindergarten | 5.6 | ![]() |
Kingdom of Ants | kingdomofants | 6.5 | ![]() |
King of the Waves | kingofthewaves | 4.8 | ![]() |
Kingpin Escape | kingpinescape | 6.7 | ![]() |
King's Colors | kingscolors | 4.3 | ![]() |
King's Decree | kingsdecree | 4.2 | ![]() |
K-Inversions | kinversions | 3.5 | ![]() |
Kitchen Measurements | kitchen | 3.7 | ![]() |
Kitchen Combinatorics | kitchencombinatorics | 5.2 | ![]() |
Kitten on a Tree | kitten | 1.7 | ![]() |
Kleptography | kleptography | 1.7 | ![]() |
Kletva | kletva | 5.1 | ![]() |
Cutting Proteins | klippaprotein | 5.4 | ![]() |
The Clock | klockan2 | 1.8 | ![]() |
Knapsack | knapsack | 4.4 | ![]() |
Knapsack Packing | knapsackpacking | 6.2 | ![]() |
Knight Fly | knightfly | 5.2 | ![]() |
Knight Jump | knightjump | 2.3 | ![]() |
Knight Packing | knightpacking | 1.3 | ![]() |
Knight Search | knightsearch | 3.1 | ![]() |
Knights in Fen | knightsfen | 3.5 | ![]() |
Knigs of the Forest | knigsoftheforest | 3.4 | ![]() |
Knitpicking | knitpicking | 3.1 | ![]() |
Knot Knowledge | knotknowledge | 1.4 | ![]() |
Koffínhraði | koffinhradi | 5.5 | ![]() |
Kolkrabbaleikarnir | kolkrabbaleikarnir | 7.9 | ![]() |
Kolone | kolone | 3.4 | ![]() |
Buying Books | kopabocker | 3.8 | ![]() |
Kornislav | kornislav | 1.6 | ![]() |
Kratki | kratki | 4.6 | ![]() |
Križaljka | krizaljka | 1.8 | ![]() |
Kuggfrågan | kuggfragan | 4.4 | ![]() |
Kuhar | kuhar | 4.7 | ![]() |
Kutevi | kutevi | 2.5 | ![]() |
Kveðja | kvedja | 1.1 | ![]() |
Ladder | ladder | 1.6 | ![]() |
Ladice | ladice | 4.1 | ![]() |
Lægð yfir landinu | laegdyfirlandinu | 1.6 | ![]() |
Lamps | lamps | 2.9 | ![]() |
Landline Telephone Network | landline | 5.9 | ![]() |
Landlocked | landlocked | 6.5 | ![]() |
Landscape Generator | landscape | 3.3 | ![]() |
Landscaping | landscaping | 4.1 | ![]() |
Language Interpreter | languageinterpreter | 7.4 | ![]() |
Laptop Sticker | laptopsticker | 1.6 | ![]() |
Laptop Stickers | laptopstickers | 2.4 | ![]() |
Large Differences | largedifferences | 9.1 | ![]() |
Largest Hoarding | largesthoarding | 3.8 | ![]() |
Largest Triangle | largesttriangle | 7.1 | ![]() |
Last Factorial Digit | lastfactorialdigit | 1.4 | ![]() ![]() ![]() |
Last Minute | lastminute | 2.7 | ![]() |
Latin Square | latinsquare | 6.6 | ![]() |
Lava | lava | 6.1 | ![]() |
Lawn Mower | lawnmower | 1.9 | ![]() |
LCM Pair Sum | lcmpairsum | 5.0 | ![]() |
LCM Thief | lcmthief | 5.6 | ![]() |
Learning to code | learningtocode | 7.2 | ![]() |
Left and Right | leftandright | 3.0 | ![]() |
Left Beehind | leftbeehind | 1.8 | ![]() |
Leggja saman | leggjasaman | 1.2 | ![]() |
Leiðangur | leidangur | 2.4 | ![]() |
Lektira | lektira | 2.8 | ![]() |
Lemonade Trade | lemonadetrade | 5.7 | ![]() |
Less vs. Fewer | lessvsfewer | 2.2 | ![]() |
Lexicography | lexicography | 6.0 | ![]() |
Leyniþjónusta | leynithjonusta | 1.3 | ![]() |
License to Launch | licensetolaunch | 1.5 | ![]() |
Liðaskipting 2 | lidaskipting2 | 2.7 | ![]() |
Life Forms | lifeforms | 7.0 | ![]() |
Liga | liga | 7.3 | ![]() |
Lights | lights | 6.6 | ![]() |
Limbo - Part 1 | limbo1 | 3.8 | ![]() |
Limbo - Part 2 | limbo2 | 3.7 | ![]() |
Linden Mayor System | lindenmayorsystem | 2.3 | ![]() |
Linear Recurrences | linearrecurrence | 5.1 | ![]() |
Lines Per Hour | linesperhour | 1.8 | ![]() |
Line Them Up | lineup | 1.8 | ![]() |
Linije | linije | 5.7 | ![]() |
Lipschitz Constant | lipschitzconstant | 3.8 | ![]() |
Liquid Assets | liquidassets | 3.2 | ![]() |
Lista | lista | 5.8 | ![]() |
Listen To Your Boss | listentoyourboss | 4.4 | ![]() |
A List Game | listgame | 2.8 | ![]() ![]() ![]() |
A Different List Game | listgame2 | 9.0 | ![]() |
Ljutnja | ljutnja | 5.0 | ![]() |
Locked Treasure | lockedtreasure | 2.4 | ![]() |
Lockout | lockout | 3.6 | ![]() |
Locust Locus | locustlocus | 1.8 | ![]() |
LogDB | logdb | 5.0 | ![]() |
Logic Functions | logicfunctions | 1.6 | ![]() |
Logland | logland | 5.3 | ![]() |
Logo | logo | 2.3 | ![]() |
Logo 2 | logo2 | 5.7 | ![]() |
Lone Rook | lonerook | 8.1 | ![]() |
Longest Common Subsequence | longestcommonsubsequence | 5.2 | ![]() |
Longest Common Substring | longestcommonsubstring | 4.3 | ![]() |
Longest path in a DAG | longestpathinadag | 3.4 | ![]() |
Longest Prime Sum | longestprimesum | 2.3 | ![]() |
Longest Increasing Subsequence | longincsubseq | 5.5 | ![]() |
Long Swaps | longswaps | 3.6 | ![]() |
Loopy Cab Drivers | loopycabdrivers | 6.7 | ![]() |
Loopy Transit | loopytransit | 3.7 | ![]() |
Loo Rolls | loorolls | 2.1 | ![]() |
Loot Chest | lootchest | 3.8 | ![]() |
The Dragon of Loowater | loowater | 2.3 | ![]() |
Lopsided Lineup | lopsidedlineup | 2.9 | ![]() |
Lost In Translation | lost | 4.8 | ![]() |
Lost In The Woods | lostinthewoods | 3.6 | ![]() |
Lost is Close to Lose | lostisclosetolose | 6.1 | ![]() |
Lost Lineup | lostlineup | 1.6 | ![]() |
Lost Map | lostmap | 1.9 | ![]() |
Low Power | low | 5.3 | ![]() |
Low Order Zeros | loworderzeros | 4.0 | ![]() |
ls | ls | 5.0 | ![]() |
Lubbi Lærir | lubbilaerir | 1.1 | ![]() |
Lucky Draw | luckydraw | 4.2 | ![]() |
Lucky Numbers | luckynumber | 4.4 | ![]() |
Luggage | luggage | 6.0 | ![]() |
Luhn's Checksum Algorithm | luhnchecksum | 1.8 | ![]() |
LumberCraft | lumbercraft | 4.7 | ![]() |
Keystrokes | lyklagangriti | 4.3 | ![]() |
Mæting | maeting | 1.4 | ![]() |
Mafija | mafija | 6.5 | ![]() |
The Magical 3 | magical3 | 5.7 | ![]() |
Magical Cows | magicalcows | 4.7 | ![]() |
Magical GCD | magicalgcd | 5.7 | ![]() |
Association of Cats and Magical Lights | magicallights | 5.7 | ![]() |
Magical Mystery Knight's Tour | magicalmysteryknight | 9.3 | ![]() |
Magical Runes | magicalrunes | 3.5 | ![]() |
Magic Bean | magicbeancube | 3.7 | ![]() |
Magic Sequence | magicsequence | 8.2 | ![]() ![]() |
Magic Trick | magictrick | 1.5 | ![]() |
Magnesium Supplementation | magnesiumsupplementation | 5.0 | ![]() |
Mahjong Madness | mahjongmadness | 4.0 | ![]() |
The Mailbox Manufacturers Problem | mailbox | 2.3 | ![]() |
Majority Card | majoritycard | 7.2 | ![]() |
Majór Skýrsla | majorskyrsla | 3.6 | ![]() |
Majstor | majstor | 2.5 | ![]() |
Making A Meowth | makingameowth | 1.8 | ![]() |
Making Palindromes | makingpalindromes | 5.8 | ![]() |
Malfunctioning Robot | malfunctioningrobot | 3.7 | ![]() |
Mali | mali | 5.8 | ![]() |
Mall Mania | mallmania | 4.7 | ![]() |
Managing Packaging | managingpackaging | 4.9 | ![]() |
Mancala | mancala | 2.1 | ![]() |
Mandelbrot | mandelbrot | 2.9 | ![]() |
Manhattan Mornings | manhattanmornings | 5.0 | ![]() |
Manhattan Positioning System | manhattanpositioningsystem | 7.2 | ![]() |
Manhattan Walk | manhattanwalk | 4.9 | ![]() |
Map Colouring | mapcolouring | 5.3 | ![]() |
Identifying Map Tiles | maptiles2 | 1.7 | ![]() |
Marbles On A Tree | marblestree | 3.1 | ![]() |
March of the Penguins | marchofpenguins | 4.1 | ![]() |
Mario | mario | 7.3 | ![]() |
Marko | marko | 1.9 | ![]() |
Mars Window | marswindow | 2.4 | ![]() |
Mårten's DFS | martensdfs | 6.1 | ![]() |
Martian DNA | martiandna | 4.0 | ![]() |
m-ary Partitions | marypartitions | 3.5 | ![]() |
Massive Card Game | massivecardgame | 3.2 | ![]() |
Mastering Mastermind | mastermind | 2.5 | ![]() |
Matarinnkaup | matarinnkaup | 5.4 | ![]() |
Match Game | matchgame | 4.6 | ![]() |
Matchsticks | matchsticks | 3.8 | ![]() |
Mathemagicians | mathemagicians | 4.8 | ![]() |
Math Homework | mathhomework | 2.0 | ![]() |
Math Trade | mathtrade | 3.3 | ![]() |
Math Worksheet | mathworksheet | 5.0 | ![]() |
Matrix Inverse | matrix | 3.3 | ![]() |
Max Arithmetic Subsequence | maxarithmeticsubsequence | 6.9 | ![]() |
Maximum Clique | maxclique | 8.0 | ![]() |
Maximum Number of Colinear Points | maxcolinear | 4.3 | ![]() |
Maximum Flow | maxflow | 4.4 | ![]() ![]() |
Maximal Sequences | maximalsequences | 6.5 | ![]() |
Maximizing (And Minimizing) Your Winnings | maximizingwinnings | 4.0 | ![]() |
Maximizing Your Pay | maximizingyourpay | 5.1 | ![]() |
Maximum Choice | maximumchoice | 3.9 | ![]() |
Maximum Fix | maximumfix | 3.9 | ![]() |
Maximum Rent | maximumrent | 3.3 | ![]() ![]() ![]() |
The Maze Makers | mazemakers | 3.4 | ![]() |
MazeMan | mazeman | 4.2 | ![]() |
Maze Movement | mazemovement | 3.7 | ![]() |
Mean Words | meanwords | 1.8 | ![]() |
Imperial Measurement | measurement | 2.1 | ![]() |
Medals | medals | 5.9 | ![]() |
Message | meddelande | 1.4 | ![]() |
Mega Inversions | megainversions | 2.9 | ![]() |
Three-State Memory | memory | 7.8 | ![]() |
Memory Game | memorygame | 4.8 | ![]() |
Memory Match | memorymatch | 3.9 | ![]() |
Menu Updates | menuupdates | 4.4 | ![]() |
Meow Factor | meowfactor | 3.1 | ![]() |
Meow Factor 2 | meowfactor2 | 6.5 | ![]() |
Messages from Outer Space | messages | 5.0 | ![]() |
Metaprogramming | metaprogramming | 2.1 | ![]() |
Methodic Multiplication | methodicmultiplication | 1.6 | ![]() |
Metronome | metronome | 1.1 | ![]() |
Mia | mia | 2.1 | ![]() |
Micro-Row | microrow | 6.0 | ![]() |
Miði | midi | 2.1 | ![]() |
Milestone Counter | milestones | 3.2 | ![]() |
Millifærsla | millifaersla | 1.2 | ![]() |
Millionaire Madness | millionairemadness | 2.1 | ![]() |
Minimum Cost Maximum Flow | mincostmaxflow | 5.0 | ![]() ![]() |
Minimum Cut | mincut | 3.6 | ![]() |
Mini Battleship | minibattleship | 4.4 | ![]() |
Minimum Scalar Product | minimumscalar | 2.0 | ![]() |
Mining Race | miningrace | 4.6 | ![]() |
Ministry of Magic | ministryofmagic | 6.6 | ![]() |
Minor Setback | minorsetback | 3.6 | ![]() |
Minimum Spanning Tree | minspantree | 4.3 | ![]() |
Mirinae | mirinae | 9.0 | ![]() |
Mirror Images | mirror | 2.2 | ![]() |
Misa | misa | 2.1 | ![]() |
Missing Gnomes | missinggnomes | 3.6 | ![]() |
Missing Number (1) | missingnumber | 4.1 | ![]() |
Missing Number (2) | missingnumber2 | 6.6 | ![]() |
Missing Numbers | missingnumbers | 1.9 | ![]() |
Mixed-Base Arithmetic | mixedbasearithmetic | 5.9 | ![]() |
Mixed Fractions | mixedfractions | 1.6 | ![]() |
Mixtape Management | mixtapemanagement | 4.0 | ![]() |
Mjehuric | mjehuric | 1.8 | ![]() |
Multi-Class Binary Neural Network for Handwritten Digits | mnist10class | 9.7 | ![]() |
Two-Class Binary Neural Network for Handwritten Digits | mnist2class | 9.4 | ![]() |
Mobilization | mobilization | 5.5 | ![]() |
Moderate Pace | moderatepace | 1.5 | ![]() |
Modified Gray Code | modifiedgraycode | 3.3 | ![]() |
Modular Arithmetic | modulararithmetic | 2.9 | ![]() |
Modulo | modulo | 1.4 | ![]() |
Modulo Data Structures | modulodatastructures | 4.9 | ![]() |
Modulo Solitaire | modulosolitaire | 3.1 | ![]() |
Molecules | molecules | 3.6 | ![]() |
Molekule | molekule | 3.4 | ![]() |
Money for Nothing | money | 6.2 | ![]() |
Money Matters | moneymatters | 2.9 | ![]() |
Money Transfers | moneytransfers | 7.4 | ![]() |
Traveling Monk | monk | 3.4 | ![]() |
Smooth Monkey | monkey | 6.0 | ![]() |
Monopoly | monopol | 1.4 | ![]() |
Let's Play Monopoly! | monopoly | 4.7 | ![]() |
Monument Maker | monumentmaker | 4.2 | ![]() |
Mårten's Theorem | more10 | 6.6 | ![]() |
Just A Few More Triangles! | moretriangles | 6.1 | ![]() |
Morse Code Palindromes | morsecodepalindromes | 3.0 | ![]() |
Intergalactic Mortgage | mortgage | 6.1 | ![]() |
Moscow Dream | moscowdream | 1.8 | ![]() |
Mosquito Multiplication | mosquito | 2.0 | ![]() |
Most Difficult | mostdifficult | 3.5 | ![]() |
Mountain Biking | mountainbiking | 3.2 | ![]() |
Mountainous Palindromic Subarray | mountainouspalindromesubarray | 3.9 | ![]() |
Mountain Village | mountainvillage | 4.8 | ![]() |
Movie Collection | moviecollection | 4.3 | ![]() |
Moving Day | movingday | 2.2 | ![]() |
Mravi (1) | mravi | 2.4 | ![]() |
Mravi (2) | mravihard | 8.7 | ![]() |
MrCodeFormatGrader | mrcodeformatgrader | 2.1 | ![]() |
Mr. Noodle | mrnoodle | 6.7 | ![]() |
Association for the Country of Mububa | mububa | 6.8 | ![]() |
Muddy Hike | muddyhike | 3.1 | ![]() |
Mult! | mult | 2.1 | ![]() |
Multigram | multigram | 2.8 | ![]() |
(More) Multiplication | multiplication | 4.0 | ![]() |
Multiplication | multiplications | 2.5 | ![]() |
Multiplying Digits | multiplyingdigits | 8.8 | ![]() |
Multiplication Table | multtable | 3.7 | ![]() |
Mumble Rap | mumblerap | 1.6 | ![]() |
Musical Chairs | musicalchairs | 3.2 | ![]() |
Musical Notation | musicalnotation | 2.1 | ![]() |
Musical Scales | musicalscales | 1.8 | ![]() |
Musical Trees | musicaltrees | 3.2 | ![]() |
Music Collection | musiccollection | 4.5 | ![]() |
Music Your Way | musicyourway | 2.4 | ![]() |
Muzicari | muzicari | 4.8 | ![]() |
Minimum Weighted Vertex Cover | mwvc | 7.7 | ![]() |
Mylla | mylla2 | 1.6 | ![]() |
Mysterious Tower | mysterioustower | 3.7 | ![]() |
Nafnagift | nafnagift | 5.2 | ![]() |
Name Generation | namegeneration | 2.8 | ![]() |
Palindrome Names | names | 4.0 | ![]() |
Name That Permutation | namethatpermutation | 4.3 | ![]() |
Namnsdag | namnsdag | 1.9 | ![]() |
Námsleið | namsleid | 4.4 | ![]() |
Narrow Art Gallery | narrowartgallery | 3.0 | ![]() |
Nasty Hacks | nastyhacks | 1.4 | ![]() |
Natjecanje | natjecanje | 2.0 | ![]() |
Natrij | natrij | 2.9 | ![]() |
Nature Reserve | naturereserve | 4.1 | ![]() |
Neighborhood Watch | neighborhoodwatch | 3.3 | ![]() |
Nered | nered | 3.7 | ![]() |
Nested Dolls | nesteddolls | 6.5 | ![]() |
Nested Shapes | nestedshapes | 3.3 | ![]() |
Networking | networking | 4.0 | ![]() |
Neutral Ground | neutralground | 3.3 | ![]() |
Never Give Up | nevergiveup | 4.9 | ![]() |
Wireless is the New Fiber | newfiber | 3.3 | ![]() |
Nicknames | nicknames | 3.6 | ![]() ![]() |
Nikola | nikola | 3.9 | ![]() |
Nimionese | nimionese | 2.2 | ![]() |
I Hate The Number Nine | nine | 3.0 | ![]() |
Nine Knights | nineknights | 2.2 | ![]() |
Nine Packs | ninepacks | 3.8 | ![]() |
Ninety-nine | ninetynine | 3.5 | ![]() |
Nizovi | nizovi | 3.2 | ![]() |
nnnnn | nnnnn | 8.2 | ![]() |
No Duplicates | nodup | 1.4 | ![]() |
Non-boring sequences | nonboringsequences | 6.4 | ![]() |
Non-negative Partial Sums | nonnegpartsums | 6.8 | ![]() |
Non-Prime Factors | nonprimefactors | 5.9 | ![]() |
Noonerized Spumbers | noonerizedspumbers | 2.6 | ![]() |
NOP | nop | 2.0 | ![]() |
Norma | norma | 7.4 | ![]() |
Not Amused | notamused | 2.6 | ![]() |
No Thanks! | nothanks | 2.0 | ![]() |
N-Puzzle | npuzzle | 1.9 | ![]() |
N-sum | nsum | 1.3 | ![]() |
NTNU Orienteering | ntnuorienteering | 4.3 | ![]() |
Determining Nucleotide Assortments | nucleotides | 3.4 | ![]() |
Nullary Computer | nullarycomputer | 4.7 | ![]() |
Núll og tveir | nullogtveir | 5.2 | ![]() |
Number Colosseum | numbercolosseum | 3.4 | ![]() |
Number Fun | numberfun | 1.6 | ![]() ![]() ![]() |
Nice Numbers | numbers | 6.8 | ![]() |
Numbers | numbers2 | 7.8 | ![]() |
Number Sets | numbersetseasy | 4.5 | ![]() |
Number Sets (Hard) | numbersetshard | 6.9 | ![]() |
Number Squistem | numbersquistem | 3.5 | ![]() |
Numbers On a Tree | numbertree | 2.4 | ![]() |
Moving to Nuremberg | nuremberg | 5.8 | ![]() |
Ocean Currents | oceancurrents | 5.3 | ![]() |
Ocean Monument | oceanmonument | 4.5 | ![]() |
Odd A's, Even B's | oddaevenb | 4.4 | ![]() |
Odd Binomial Coefficients | oddbinom | 3.3 | ![]() |
Odd Echo | oddecho | 1.3 | ![]() |
Odd Gnome | oddgnome | 1.7 | ![]() |
Oddities | oddities | 1.3 | ![]() |
Odd Man Out | oddmanout | 1.5 | ![]() |
Odds of Mia | odds | 2.5 | ![]() |
Office Number | officenumber | 4.8 | ![]() |
Office Space | officespace | 4.7 | ![]() |
Off-World Records | offworldrecords | 1.6 | ![]() |
Reverse | ofugsnuid | 1.4 | ![]() |
Oktalni | oktalni | 1.9 | ![]() |
Okvir | okvir | 2.1 | ![]() |
Okviri | okviri | 2.1 | ![]() |
Older Brother | olderbrother | 3.3 | ![]() |
On Average They're Purple | onaveragetheyrepurple | 3.0 | ![]() |
One Chicken Per Person! | onechicken | 1.6 | ![]() |
Ones | ones | 4.6 | ![]() |
Keeping On Track | ontrack | 4.2 | ![]() |
Open-Pit Mining | openpitmining | 4.1 | ![]() |
Open Source | opensource | 3.6 | ![]() |
Opportunity Cost | opportunity | 3.8 | ![]() |
First Orchard | orchard | 4.0 | ![]() |
Ordered Problem Set | orderedproblemset | 1.8 | ![]() |
Ordering Hotbar | orderinghotbar | 6.0 | ![]() |
Orderly Class | orderlyclass | 3.8 | ![]() |
Restaurant Orders | orders | 5.4 | ![]() |
Ordinals | ordinals | 2.0 | ![]() |
Ordinary Ordinals | ordinaryordinals | 4.4 | ![]() |
Orðla | ordla | 6.3 | ![]() |
Organ-free Man | organfreeman | 6.2 | ![]() |
Ornaments | ornaments | 2.6 | ![]() |
Orphan Backups | orphanbackups | 6.4 | ![]() |
Östgötska | ostgotska | 2.1 | ![]() |
Other Side | otherside | 5.3 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Otpor | otpor | 4.0 | ![]() |
Out of Sorts | outofsorts | 2.5 | ![]() |
OvalWatch | ovalwatch | 2.9 | ![]() |
Overdraft | overdraft | 2.2 | ![]() |
Overlapping Maps | overlappingmaps | 4.5 | ![]() |
Over the Hill, Part 1 | overthehill1 | 2.6 | ![]() |
Over The Hill, Part 2 | overthehill2 | 6.2 | ![]() |
Óvissa | ovissa | 1.2 | ![]() |
The Owl and the Fox | owlandfox | 1.9 | ![]() |
Ozljeda | ozljeda | 4.3 | ![]() |
Pachinko Probability | pachinkoprobability | 5.4 | ![]() |
Pachyderm Peanut Packing | pachydermpeanutpacking | 2.0 | ![]() |
Page Layout | pagelayout | 5.2 | ![]() |
Paintball | paintball | 3.3 | ![]() |
Paintings | paintings | 3.6 | ![]() |
Paired Furnaces | pairedfurnaces | 8.1 | ![]() |
Pairing Socks | pairingsocks | 2.9 | ![]() |
Packagemanager | pakethanterare | 2.0 | ![]() |
Palindromes | palindromes | 8.0 | ![]() |
Palindrome Substring | palindromesubstring | 4.0 | ![]() |
Palindromic Naming | palindromic | 5.4 | ![]() |
Palindromic DNA | palindromicdna | 7.6 | ![]() |
Palindromic Password | palindromicpassword | 4.1 | ![]() |
Pallatölur | pallatolur | 1.9 | ![]() |
Panda Chess | pandachess | 6.0 | ![]() |
Paper Snowflakes | papersnowflakes | 6.2 | ![]() |
Parakoopa Projectile | parakoopaprojectile | 8.7 | ![]() |
Parallel Analysis | parallelanalysis | 4.6 | ![]() |
Parent Gap | parentgap | 2.5 | ![]() |
Parket | parket | 2.3 | ![]() |
Parking (1) | parking | 2.0 | ![]() |
Parking (2) | parking2 | 1.6 | ![]() |
Parsing Hex | parsinghex | 2.7 | ![]() |
Particle Collision | particlecollision | 5.7 | ![]() |
Party Game | partygame | 3.7 | ![]() |
Pascal | pascal | 3.5 | ![]() |
Passing Secrets | passingsecrets | 5.1 | ![]() |
Passport Stamps | passportstamps | 5.7 | ![]() |
Password Hacking | password | 2.1 | ![]() |
Patchwork | patchwork | 2.3 | ![]() |
Path Crossings | pathcrossings | 3.0 | ![]() |
Paths | paths | 4.4 | ![]() |
Path Tracing | pathtracing | 3.3 | ![]() |
Patuljci (1) | patuljci | 1.8 | ![]() |
Patuljci (2) | patuljci2 | 6.2 | ![]() |
Paul Eigon | pauleigon | 1.9 | ![]() |
Pawn Shop | pawnshop | 3.4 | ![]() |
Peach Powder Polygon | peachpowderpolygon | 2.0 | ![]() |
Pear-wise Voting | pearwise | 4.1 | ![]() |
Pea Soup and Pancakes | peasoup | 3.1 | ![]() ![]() ![]() |
Pebble Solitaire (1) | pebblesolitaire | 2.3 | ![]() |
Pebble Solitaire (2) | pebblesolitaire2 | 2.4 | ![]() |
Pedal Power | pedalpower | 6.9 | ![]() |
Peg | peg | 1.9 | ![]() |
Peg Game for Two | peggamefortwo | 3.2 | ![]() |
Pegs and Legs | pegsandlegs | 3.4 | ![]() |
Pencil Crayons | pencilcrayons | 1.5 | ![]() |
Peningar | peningar | 2.1 | ![]() |
Peragrams | peragrams | 1.9 | ![]() |
Perfect Pth Powers | perfectpowers | 5.4 | ![]() ![]() |
Perfect Skyline | perfectskyline | 5.8 | ![]() |
Perica | perica | 4.1 | ![]() |
Periodic Strings | periodicstrings | 2.5 | ![]() |
Perket | perket | 2.2 | ![]() |
Permutation Code | permcode | 2.3 | ![]() |
Permutation Descent Counts | permutationdescent | 2.1 | ![]() |
Permutation Encryption | permutationencryption | 2.4 | ![]() |
Permuted Arithmetic Sequence | permutedarithmeticsequence | 2.1 | ![]() |
Persistent Numbers | persistent | 4.3 | ![]() |
Pervasive Heart Monitor | pervasiveheartmonitor | 1.8 | ![]() |
Pet | pet | 1.4 | ![]() ![]() |
Pharmacy | pharmacy | 4.3 | ![]() |
Phone List | phonelist | 3.1 | ![]() |
Physical Music | physicalmusic | 5.9 | ![]() |
Moving Pianos | piano | 4.8 | ![]() |
Piano Lessons | pianolessons | 3.4 | ![]() |
Pick up sticks | pickupsticks | 4.2 | ![]() |
Pie | pie | 3.2 | ![]() |
Piece of Cake | pieceofcake | 8.4 | ![]() |
Piece of Cake! | pieceofcake2 | 1.5 | ![]() ![]() ![]() |
Pig Latin | piglatin | 2.2 | ![]() |
Pigstep | pigstep | 5.3 | ![]() |
A Vicious Pikeman (Easy) | pikemaneasy | 3.0 | ![]() |
A Vicious Pikeman (Hard) | pikemanhard | 8.4 | ![]() |
Pinni Frændi | pinnifraendi | 2.2 | ![]() |
Pipe Rotation | piperotation | 3.5 | ![]() |
Pitch Performance | pitchperformance | 5.0 | ![]() |
Pivot | pivot | 2.6 | ![]() |
Pizza Delivery | pizza | 4.5 | ![]() |
Pizza Crust | pizza2 | 1.7 | ![]() |
Pizza Hawaii | pizzahawaii | 2.4 | ![]() |
Pizzastrengur | pizzastrengur | 5.7 | ![]() |
Pizzubestun | pizzubestun | 2.2 | ![]() |
Planetaris | planetaris | 2.2 | ![]() |
Planet Destruction | planetdestruction | 5.2 | ![]() |
Planete | planete | 6.1 | ![]() |
Planet Hopping | planethopping | 3.9 | ![]() |
Planets | planets2 | 3.1 | ![]() |
Planina | planina | 1.5 | ![]() ![]() ![]() ![]() |
Planting Trees | plantingtrees | 1.8 | ![]() |
Platforme | platforme | 2.9 | ![]() |
Playfair Cipher | playfair | 2.9 | ![]() |
Playground | playground | 4.9 | ![]() |
Playing the Slots | playingtheslots | 3.2 | ![]() |
Playing with Numbers | playingwithnumbers | 4.8 | ![]() |
Please, Go First | pleasegofirst | 3.4 | ![]() |
Plotting Polynomials | plot | 2.5 | ![]() |
Mr. Plow King | plowking | 3.2 | ![]() |
Point in Polygon | pointinpolygon | 5.6 | ![]() |
Pokeball Fever | pokeball | 5.7 | ![]() |
Pokechat | pokechat | 1.5 | ![]() |
Pokemon Go Go | pokemongogo | 5.0 | ![]() |
Poker Hand | pokerhand | 1.4 | ![]() |
Polish Notation | polish | 3.8 | ![]() |
Polly Gone | pollygone | 6.1 | ![]() |
Polygon Area | polygonarea | 2.5 | ![]() |
Polygon Game | polygongame | 5.9 | ![]() |
Polynomial Multiplication 1 | polymul1 | 1.9 | ![]() |
Polynomial Multiplication 2 | polymul2 | 5.8 | ![]() |
Pop! | pop | 3.7 | ![]() |
Popcorn | popkorn | 3.2 | ![]() |
Poplava | poplava | 4.1 | ![]() |
Popularity Contest | popularitycontest | 1.8 | ![]() |
Immortal Porpoises | porpoises | 2.7 | ![]() |
Positive Divisors | positivedivisors | 3.1 | ![]() |
Posterize | posterize | 3.1 | ![]() |
Pot | pot | 1.5 | ![]() ![]() ![]() |
Potion Commotion | potioncommotion | 3.8 | ![]() |
Power Eggs | powereggs | 4.2 | ![]() |
Power of Divisors | powerofdivisors | 5.6 | ![]() |
Powers and Modulus | powers | 5.0 | ![]() |
Powers of 2 (Easy) | powersof2easy | 2.2 | ![]() |
Power Strings | powerstrings | 5.4 | ![]() |
Predicting GME | predictinggme | 3.3 | ![]() |
Prerequisites | prerequisites | 2.0 | ![]() |
Presidential Elections | presidentialelections | 5.5 | ![]() |
Pretty Good Cube Root | prettygoodcuberoot | 4.4 | ![]() |
Primal Partitions | primal | 5.5 | ![]() |
Primality | primality | 5.4 | ![]() |
Primal Representation | primalrepresentation | 4.2 | ![]() |
Primary Arithmetic | primaryarithmetic | 3.0 | ![]() |
Prime Count | primecount | 8.6 | ![]() |
Prime Matrix | primematrix | 4.3 | ![]() |
Prime Path | primepath | 2.2 | ![]() |
Prime Reduction | primereduction | 2.7 | ![]() |
Peculiar primes | primes | 5.9 | ![]() |
Blackboard Numbers | primes2 | 3.8 | ![]() |
Prime Sieve | primesieve | 4.7 | ![]() |
Prime Time | primetime | 6.7 | ![]() |
Prince and Princess | princeandprincess | 5.4 | ![]() |
Saving Princess Peach | princesspeach | 2.1 | ![]() |
Prinova | prinova | 5.0 | ![]() |
Printing Costs | printingcosts | 2.2 | ![]() |
Pripreme | pripreme | 2.8 | ![]() |
Prjónamynstur | prjonamynstur | 1.5 | ![]() |
Problem Classification | problemclassification | 2.9 | ![]() |
Product Divisors | productdivisors | 7.6 | ![]() |
Product Digit | produktsiffra | 8.0 | ![]() |
Profitable Pizzas | profitablepizzas | 6.7 | ![]() |
Program | program | 7.9 | ![]() |
Programming Team Selection | programmingteamselection | 6.0 | ![]() |
Programming Tutors | programmingtutors | 4.4 | ![]() |
Progressive Scramble | progressivescramble | 2.3 | ![]() |
Promotions | promotions | 6.0 | ![]() |
Proofs | proofs | 2.6 | ![]() |
Prosjek | prosjek | 5.2 | ![]() |
Protecting the Collection | protectingthecollection | 4.0 | ![]() |
Provinces and Gold | provincesandgold | 1.4 | ![]() |
Prozor | prozor | 1.9 | ![]() |
Prsteni | prsteni | 1.7 | ![]() |
Prva | prva | 1.7 | ![]() |
Pseudoprime numbers | pseudoprime | 3.6 | ![]() |
Ptice | ptice | 1.6 | ![]() |
Pub Crawl | pubrunda | 2.2 | ![]() |
Pub-lic Good | pubs | 3.9 | ![]() |
Pulling Their Weight | pullingtheirweight | 4.3 | ![]() |
Pulverizing Pancake | pulverizingpancake | 5.5 | ![]() |
Pumpkin Patch | pumpkinpatch | 5.3 | ![]() |
Purple Rain | purplerain | 3.7 | ![]() |
Púsluspil | pusluspil | 2.2 | ![]() |
Putovanje | putovanje | 3.1 | ![]() |
Plants vs Bad Guys | pvbg | 1.7 | ![]() |
Primary X-Subfactor Series | pxs | 4.4 | ![]() |
Pyramid Construction | pyramidkonstruktion | 3.7 | ![]() |
Building Pyramids | pyramids | 1.6 | ![]() |
Pyro Tubes | pyro | 5.2 | ![]() |
Quality-Adjusted Life-Year | qaly | 1.3 | ![]() ![]() |
Qanat | qanat | 2.5 | ![]() |
Quadrant Selection | quadrant | 1.2 | ![]() ![]() ![]() |
Quadratic Dissonance | quadraticdissonance | 4.0 | ![]() |
Quadratic Residues | quadres | 6.5 | ![]() |
Quantum | quantum | 3.7 | ![]() |
Quantum Superposition | quantumsuperposition | 3.3 | ![]() |
Verify This, Your Majesty | queens | 2.5 | ![]() |
The Queen's Super-circular Patio | queenspatio | 3.3 | ![]() |
Quick Brown Fox | quickbrownfox | 1.8 | ![]() |
Quick Estimates | quickestimate | 1.6 | ![]() |
Quickscope | quickscope | 4.0 | ![]() |
Quite a Problem | quiteaproblem | 2.1 | ![]() |
R2 | r2 | 1.3 | ![]() ![]() ![]() |
Amazing Race | race | 6.2 | ![]() |
Race Day | raceday | 3.7 | ![]() |
Racing Around the Alphabet | racingalphabet | 1.6 | ![]() |
Radar | radar | 7.5 | ![]() |
Raðgreining 1 | radgreining1 | 1.6 | ![]() |
Raðir | radir | 4.2 | ![]() |
Fleecing the Raffle | raffle | 4.2 | ![]() |
White Water Rafting | rafting | 2.9 | ![]() |
Ragged Right | raggedright | 1.9 | ![]() |
Raging River | ragingriver | 6.4 | ![]() |
Raid Teams | raidteams | 3.8 | ![]() |
Railroad Map | railroad | 6.7 | ![]() |
Railroad | railroad2 | 1.6 | ![]() |
Railway Runner | railwayrunner | 4.0 | ![]() |
Rainbow Road Race | rainbowroadrace | 3.7 | ![]() |
Rain Fall | rainfall2 | 4.6 | ![]() |
Raising the Bar | raisingthebar | 5.0 | ![]() |
Rampant Growth | rampantgrowth | 1.8 | ![]() |
Random Digital Exponentiation | randomdigitalexponentiation | 5.6 | ![]() |
Random Walking | randomwalking | 5.7 | ![]() |
A Rank Problem | rankproblem | 2.7 | ![]() |
Rasterized Lines | rasterized | 7.9 | ![]() |
Rating Problems | ratingproblems | 1.4 | ![]() |
Restaurant Ratings | ratings | 4.0 | ![]() |
Rational Arithmetic | rationalarithmetic | 3.3 | ![]() |
Rationalization | rationalisering | 7.9 | ![]() |
Rational Ratio | rationalratio | 5.0 | ![]() |
A Rational Sequence | rationalsequence | 4.9 | ![]() |
A Rational Sequence 2 | rationalsequence2 | 2.5 | ![]() ![]() ![]() |
A Rational Sequence (Take 3) | rationalsequence3 | 2.4 | ![]() ![]() |
RATS | rats | 5.5 | ![]() |
Razgovori | razgovori | 4.0 | ![]() |
Reachable Roads | reachableroads | 1.9 | ![]() |
Reactivity Series | reactivity | 3.6 | ![]() |
Real Manhattan Distance | realmanhattandistance | 6.1 | ![]() |
Rečenice | recenice | 2.8 | ![]() |
Scaling Recipes | recipes | 1.8 | ![]() |
Reconnaissance | reconnaissance | 3.4 | ![]() |
Reconstructing Tape Art | reconstructingtapeart | 4.4 | ![]() |
Recount | recount | 2.1 | ![]() |
Rectangle Area | rectanglearea | 1.5 | ![]() |
The Rectangles Are Surrounding Us! | rectanglesurrounding | 2.6 | ![]() |
Growing Rectangular Spiral | rectangularspiral | 3.0 | ![]() |
Rectilinear Polygon | rectilinear | 6.6 | ![]() |
Recursion + Rand = !Fun | recursionrandfun | 6.1 | ![]() |
Red Blue Spanning Tree | redbluetree | 5.2 | ![]() |
Exam Redistribution | redistribution | 2.3 | ![]() |
Red Rover | redrover | 2.2 | ![]() |
Boastin' Red Socks | redsocks | 6.1 | ![]() |
Reduced ID Numbers | reducedidnumbers | 2.5 | ![]() |
Work Reduction | reduction | 5.6 | ![]() |
Redundant Binary Notation | redundantbinarynotation | 4.1 | ![]() |
Reduplication | reduplikation | 1.2 | ![]() |
Refrigerator Transport | refrigerator | 2.4 | ![]() |
Primary Register | register | 2.3 | ![]() |
Relatives | relatives | 3.2 | ![]() |
Relocation | relocation | 1.5 | ![]() |
Remainder Reminder | remainderreminder | 5.8 | ![]() |
ReMorse | remorse | 2.3 | ![]() |
Remoteland | remoteland | 4.8 | ![]() |
Repeated Substrings (1) | repeatedsubstrings | 6.1 | ![]() |
Repeating Decimal | repeatingdecimal | 3.7 | ![]() |
Repetitive Song | repetitivesong | 3.1 | ![]() |
Replicate Replicate Rfplicbte | replicate | 3.8 | ![]() |
Report Card | reportcard | 6.1 | ![]() |
Research Productivity Index | researchproductivityindex | 3.3 | ![]() |
Reseto | reseto | 2.3 | ![]() |
Working at the Restaurant | restaurant | 4.4 | ![]() |
Restaurant Bribes | restaurantbribes | 4.8 | ![]() |
Restaurant Opening | restaurantopening | 1.8 | ![]() |
Retribution! | retribution | 6.2 | ![]() |
Reversed Binary Numbers | reversebinary | 1.4 | ![]() |
Reverse Rot | reverserot | 1.7 | ![]() |
Reversibly Cyclic Strings | reversiblecyclic | 3.3 | ![]() |
Reversing Roads | reversingroads | 3.8 | ![]() |
Rhyming Slang | rhyming | 3.3 | ![]() |
Ricochet Robots | ricochetrobots | 4.7 | ![]() |
Riddle of the Sphinx | riddleofthesphinx | 3.3 | ![]() |
Getting Rid of Coins | ridofcoins | 7.7 | ![]() |
Riječi | rijeci | 1.7 | ![]() |
Ríkjafræði | rikjafraedi | 6.3 | ![]() |
Rimski | rimski | 3.7 | ![]() |
Rhyme Power | rimstyrka | 3.9 | ![]() |
Rings (1) | rings | 5.0 | ![]() |
Rings (2) | rings2 | 4.0 | ![]() |
Rice judge | risdomare | 2.6 | ![]() |
Risk | risk | 5.9 | ![]() |
RNG Test | rngtest | 7.1 | ![]() |
Road Times | roadtimes | 6.0 | ![]() |
Robbers are Often Robbed | robbersareoftenrobbed | 5.7 | ![]() |
Robert Hood | roberthood | 4.0 | ![]() |
Robot in a Maze | robotmaze | 5.8 | ![]() |
Robotopia | robotopia | 5.4 | ![]() ![]() |
Robot Protection | robotprotection | 2.7 | ![]() |
Robots on a Grid | robotsonagrid | 5.1 | ![]() |
Robot Turtles | robotturtles | 3.3 | ![]() |
Rock Band | rockband | 3.9 | ![]() |
Rock Climbing | rockclimbing | 5.0 | ![]() |
Rocket Stages | rocketstages | 3.9 | ![]() |
Rock-Paper-Scissors Tournament | rockpaperscissors | 3.7 | ![]() |
Rock, Scissors, Paper | rockscissorspaper | 4.3 | ![]() |
Röðunarrugl | rodunarrugl | 2.2 | ![]() |
Roll Call | rollcall | 2.7 | ![]() |
Roller Coaster Fun | rollercoasterfun | 6.6 | ![]() |
Roman Holidays | romanholidays | 5.0 | ![]() |
Roaming Romans | romans | 1.6 | ![]() |
Room Painting | roompainting | 2.5 | ![]() |
Rooted Subtrees | rootedsubtrees | 4.0 | ![]() |
Rot | rot | 3.1 | ![]() |
Rotate and Cut | rotatecut | 3.6 | ![]() |
Rounded Buttons | roundedbuttons | 3.4 | ![]() |
RSA Mistake | rsamistake | 4.1 | ![]() |
Ruglaður listi | rugladurlisti | 4.3 | ![]() |
Rule N | rulen | 3.5 | ![]() |
Run-Length Encoding, Run! | runlengthencodingrun | 1.8 | ![]() |
Running MoM | runningmom | 4.1 | ![]() |
Running Steps | runningsteps | 2.8 | ![]() |
Sabor | sabor | 6.3 | ![]() |
Sacred Texts | sacredtexts | 4.2 | ![]() |
Cracking The Safe | safe | 2.9 | ![]() |
Safe Houses | safehouses | 2.5 | ![]() |
Safe Passage | safepassage | 4.1 | ![]() |
Safe Racing | saferacing | 3.6 | ![]() |
Safety in Numbers | safety | 4.8 | ![]() |
Sailing Friends | sailingfriends | 2.5 | ![]() |
Salt | salt | 7.9 | ![]() |
Same Digits (Easy) | samedigitseasy | 2.5 | ![]() |
Same Digits (Hard) | samedigitshard | 2.6 | ![]() |
Samlokur | samlokur | 4.9 | ![]() |
Sammaeining | sammaeining | 5.5 | ![]() |
Songbook | sangbok | 2.0 | ![]() |
Sanic | sanic | 2.6 | ![]() |
Sannvirði | sannvirdi | 3.0 | ![]() |
Santa Klas | santaklas | 2.9 | ![]() |
Yet Satisfiability Again! | satisfiability | 3.7 | ![]() |
Saving Daylight | savingdaylight | 2.2 | ![]() |
Saving For Retirement | savingforretirement | 1.9 | ![]() |
Saving the Universe | savinguniverse | 4.2 | ![]() |
Eb Alto Saxophone Player | saxophone | 2.2 | ![]() |
Scaling Recipe | scalingrecipe | 2.0 | ![]() |
Mountain Scenes | scenes | 3.4 | ![]() |
School Spirit | schoolspirit | 1.8 | ![]() |
Score! | score | 3.4 | ![]() |
Hacking the Screen | screen | 3.6 | ![]() |
Scrolling Sign | scrollingsign | 3.0 | ![]() |
Secret Chamber at Mount Rushmore | secretchamber | 2.6 | ![]() |
Secret Message | secretmessage | 1.8 | ![]() |
Secret Santa | secretsanta | 3.3 | ![]() |
Secret Santa Cycles | secretsantacycles | 6.7 | ![]() |
Secure Doors | securedoors | 1.7 | ![]() |
Security Badge | securitybadge | 7.6 | ![]() |
Line Segment Distance | segmentdistance | 4.3 | ![]() |
Line Segment Intersection | segmentintersection | 6.7 | ![]() |
Segment Monitoring | segmentovervakning | 5.2 | ![]() |
Select Group | selectgroup | 4.2 | ![]() |
Self-Similar Strings | selfsimilarstrings | 3.2 | ![]() |
Selling Land | sellingland | 7.3 | ![]() |
Selling Spatulas | sellingspatulas | 7.2 | ![]() |
Semafori | semafori | 1.9 | ![]() |
Send More Money | sendmoremoney | 7.1 | ![]() |
Sentry Robots | sentryrobots | 3.7 | ![]() |
Dividing Sequence | sequence | 3.6 | ![]() |
Sequence Reduction | sequencereduction | 5.9 | ![]() |
0-1 Sequences | sequences | 5.5 | ![]() |
Sequential Manufacturing | sequentialmanufacturing | 3.0 | ![]() |
Server | server | 1.7 | ![]() |
Set! | set | 2.1 | ![]() |
SETI | seti | 3.5 | ![]() |
Setnja | setnja | 4.7 | ![]() ![]() |
The SetStack Computer | setstack | 5.8 | ![]() ![]() |
Settlers of Catan | settlers2 | 4.2 | ![]() |
Seven Wonders | sevenwonders | 1.5 | ![]() |
SG Coin | sgcoin | 2.7 | ![]() |
Shandy | shandy | 1.3 | ![]() |
Sharing Candies | sharingcandies | 5.1 | ![]() |
Shattered Cake | shatteredcake | 1.5 | ![]() ![]() ![]() ![]() |
Sheldon Numbers | sheldon | 4.7 | ![]() |
Ship Traffic | ship | 4.0 | ![]() |
Shiritori | shiritori | 2.6 | ![]() |
Shopaholic | shopaholic | 2.4 | ![]() |
Shopping | shopping | 5.1 | ![]() |
Shopping List | shoppinglist | 3.0 | ![]() |
Shopping List (Easy) | shoppinglisteasy | 1.9 | ![]() |
Shopping Malls | shoppingmalls | 3.8 | ![]() |
Divisibility Shortcut | shortcut | 4.0 | ![]() |
Shortest Composite Sum | shortestcompositesum | 4.4 | ![]() ![]() |
Single source shortest path, non-negative weights | shortestpath1 | 2.9 | ![]() ![]() |
Single source shortest path, time table | shortestpath2 | 3.5 | ![]() |
Single source shortest path, negative weights | shortestpath3 | 4.3 | ![]() |
Single source shortest path, safe path | shortestpath4 | 3.9 | ![]() |
Short Sell | shortsell | 3.9 | ![]() |
Elegant Showroom | showroom | 4.4 | ![]() |
Shrine Maintenance | shrine | 5.7 | ![]() |
Shuffling Along | shuffling | 2.6 | ![]() |
Sibice | sibice | 1.4 | ![]() |
Sideways Sorting | sidewayssorting | 2.2 | ![]() |
Digit Product | sifferprodukt | 1.5 | ![]() |
Bridging Signals | signals | 2.9 | ![]() |
Silueta | silueta | 5.1 | ![]() |
Silver Star Stands Alone | silverstarstandsalone | 3.2 | ![]() |
Sim | sim | 3.8 | ![]() |
Simon Says (1) | simon | 2.4 | ![]() |
Simone | simone | 2.0 | ![]() |
Simon Says (2) | simonsays | 1.5 | ![]() |
Simple Addition | simpleaddition | 2.5 | ![]() |
Simple Arithmetic | simplearithmetic | 4.6 | ![]() |
Simple Cron Spec | simplecronspec | 2.1 | ![]() |
Simple Factoring | simplefactoring | 2.5 | ![]() |
Simple Polygon | simplepolygon | 5.0 | ![]() |
Simple Solitaire | simplesolitaire | 4.9 | ![]() |
Simplicity | simplicity | 2.8 | ![]() |
Polyline Simplification | simplification | 6.0 | ![]() |
Simply Sudoku | simplysudoku | 4.2 | ![]() |
The Last Pizza | sistapizzan | 4.2 | ![]() ![]() ![]() |
Sith | sith | 1.5 | ![]() |
Six Degrees | sixdegrees | 4.7 | ![]() |
Sjecista | sjecista | 1.9 | ![]() |
Skammstöfun | skammstofun | 1.5 | ![]() |
Skener | skener | 1.5 | ![]() ![]() ![]() |
Ski Jumping | skijumping | 3.4 | ![]() |
Ski Lifts | skilifts | 3.7 | ![]() |
Skocimis | skocimis | 1.6 | ![]() |
Graduation | skolavslutningen | 2.4 | ![]() |
Going to School | skolvagen | 2.1 | ![]() ![]() ![]() |
Skotleikur | skotleikur | 2.2 | ![]() |
Turn It Up! | skruop | 1.6 | ![]() |
Sky Islands | skyislands | 2.1 | ![]() |
Skyline | skyline | 5.1 | ![]() |
Slalom 2 | slalom2 | 5.8 | ![]() |
Slatkisi | slatkisi | 1.8 | ![]() |
Slide Count | slidecount | 4.0 | ![]() |
Sliding Tiles | slidingtiles | 4.2 | ![]() |
Slikar | slikar | 3.3 | ![]() |
Slon | slon | 6.3 | ![]() |
Slow Leak | slowleak | 5.7 | ![]() |
Sly Students | slystudents | 2.4 | ![]() |
Smallest Calculated Value | smallestcalculatedvalue | 2.9 | ![]() |
Smallest Multiple | smallestmultiple | 3.3 | ![]() |
Small Schedule | smallschedule | 3.2 | ![]() |
Smart Phone | smartphone | 2.7 | ![]() |
SMIL | smil | 1.5 | ![]() |
Smoothie Stand | smoothiestand | 2.4 | ![]() |
Snakes and Masters | snakesandmasters | 3.4 | ![]() |
Snapper Chain (Easy) | snappereasy | 2.8 | ![]() ![]() |
Snapper Chain (Hard) | snapperhard | 2.3 | ![]() |
S-Nim | snim | 2.6 | ![]() |
Snjóteppa | snjoteppa | 4.5 | ![]() |
Unique Snowflakes | snowflakes | 4.2 | ![]() |
Social Advertising | socialadvertising | 4.0 | ![]() |
Social Distancing (1) | socialdistancing | 7.2 | ![]() |
Social Distancing (2) | socialdistancing2 | 2.3 | ![]() |
Social running | socialrunning | 2.4 | ![]() |
Soda Slurper | sodaslurper | 1.6 | ![]() |
Soft Passwords | softpasswords | 2.3 | ![]() |
Sok | sok | 1.9 | ![]() |
Peg Solitaire | solitaire | 3.1 | ![]() |
Some Sum | somesum | 2.1 | ![]() |
Soot Sprite Sprinklers | sootspritesprinklers | 3.9 | ![]() |
Sort | sort | 2.7 | ![]() |
Sort of Sorting | sortofsorting | 2.1 | ![]() ![]() |
Sort Two Numbers | sorttwonumbers | 1.3 | ![]() |
Sóttkví | sottkvi | 1.5 | ![]() |
The Sound of Silence | sound | 4.3 | ![]() |
Soundex | soundex | 2.5 | ![]() |
Soylent | soylent | 1.7 | ![]() |
So You Like Your Food Hot | soyoulikeyourfoodhot | 5.2 | ![]() |
Space Mail | spacemail | 5.4 | ![]() ![]() ![]() |
Space Race | spacerace | 2.2 | ![]() |
Sparkle's Seven | sparklesseven | 5.5 | ![]() |
Spavanac | spavanac | 1.4 | ![]() |
Need for Speed | speed | 3.0 | ![]() |
Speeding | speeding | 1.6 | ![]() |
Speed Limit | speedlimit | 1.5 | ![]() |
Speedrun | speedrun | 2.3 | ![]() |
Speedrunning | speedrunning | 5.8 | ![]() |
Speedy Escape | speedyescape | 5.4 | ![]() |
Sperhling | spehrling | 2.4 | ![]() |
Spelling Bee | spellingbee | 2.1 | ![]() |
Simon the Spider | spider | 6.3 | ![]() |
Spiderman's Workout | spiderman | 4.4 | ![]() |
Spidey Distance | spideydistance | 6.3 | ![]() |
Prime Spiral | spiral | 3.2 | ![]() |
Splat | splat | 2.6 | ![]() |
Split Decisions | splitdecisions | 6.4 | ![]() |
Spritt | spritt | 1.3 | ![]() |
Sprocket Science | sprocketscience | 6.1 | ![]() |
Square Deal | squaredeal | 4.4 | ![]() |
Square Peg | squarepeg | 1.6 | ![]() |
Square Peg in a Round Hole | squarepegs | 2.9 | ![]() |
Squawk Virus | squawk | 3.2 | ![]() |
Squirdle | squirdle | 5.0 | ![]() |
Srednji | srednji | 4.1 | ![]() |
Sretan | sretan | 3.1 | ![]() |
Stack Construction | stack | 7.2 | ![]() |
Illuminated City | stadiljus | 2.2 | ![]() |
Stafur | stafur | 1.5 | ![]() |
Staggering to the Finish | staggeringtothefinish | 3.2 | ![]() |
Stamp Combinations | stampcombinations | 5.5 | ![]() |
Biased Standings | standings | 3.4 | ![]() |
Star Arrangements | stararrangements | 1.7 | ![]() |
Star Battles I | starbattles1 | 3.0 | ![]() |
A Star not a Tree | starnotatree | 6.5 | ![]() |
Stars in a Can | starsinacan | 5.4 | ![]() |
Statistics | statistics | 1.8 | ![]() |
Statues | statues | 2.9 | ![]() |
Sticky Keys | stickykeys | 1.5 | ![]() |
Sticky Situation | stickysituation | 2.5 | ![]() |
Stikl | stikl | 5.8 | ![]() |
Stirling's Approximation | stirlingsapproximation | 4.5 | ![]() |
Daydreaming Stockbroker | stockbroker | 3.2 | ![]() |
Stock Prices | stockprices | 4.0 | ![]() |
Stoichiometry | stoichiometry | 4.9 | ![]() |
Messy lists | stokigalistor | 2.2 | ![]() |
Stol | stol | 5.6 | ![]() |
Stop Counting! | stopcounting | 5.2 | ![]() |
Stopwatch | stopwatch | 1.5 | ![]() |
Stórafmæli | storafmaeli | 1.2 | ![]() |
Straights | straights | 3.3 | ![]() |
Stream Lag | streamlag | 3.1 | ![]() |
Streets Ahead | streetsahead | 2.1 | ![]() |
Streets Behind | streetsbehind | 8.2 | ![]() |
String Factoring | stringfactoring | 5.0 | ![]() |
String Matching | stringmatching | 3.6 | ![]() |
String Multimatching | stringmultimatching | 5.9 | ![]() ![]() ![]() |
Studentsko | studentsko | 3.9 | ![]() |
Subaruba | subaruba | 3.5 | ![]() |
Common Subexpression Elimination | subexpression | 6.2 | ![]() |
Subprime | subprime | 3.9 | ![]() |
Counting Subsequences (Hard) | subseqhard | 3.6 | ![]() |
Subsequences in Substrings | subsequencesinsubstrings | 4.9 | ![]() |
The Power of Substitution | substitution | 6.2 | ![]() |
Repeated Substrings (2) | substrings | 5.6 | ![]() |
Substring Switcheroo | substringswitcheroo | 5.6 | ![]() |
Subtraction Plus Plus | subtractionplusplus | 5.2 | ![]() |
Subtraction Plus Plus Plus | subtractionplusplusplus | 4.2 | ![]() |
Subway Tree System | subway | 4.6 | ![]() |
Subway | subway2 | 5.2 | ![]() |
Subway Planning | subwayplanning | 2.2 | ![]() |
Successful Zoom | successfulzoom | 2.4 | ![]() |
Succession | succession | 3.2 | ![]() |
Sudokunique | sudokunique | 8.7 | ![]() |
Suffix Array Re-construction | suffixarrayreconstruction | 3.8 | ![]() |
Suffix Sorting | suffixsorting | 5.3 | ![]() ![]() ![]() |
Šuma | suma | 6.4 | ![]() |
Sum and Product | sumandproduct | 6.8 | ![]() |
Sumdoku | sumdoku | 3.6 | ![]() |
Sum Kind of Problem | sumkindofproblem | 1.6 | ![]() ![]() ![]() |
Summer Trip | summertrip | 3.2 | ![]() |
Sum of the Others | sumoftheothers | 2.4 | ![]() |
Sumsets | sumsets | 7.1 | ![]() |
Sum Squared Digits Function | sumsquareddigits | 1.5 | ![]() |
Sun and Moon | sunandmoon | 2.0 | ![]() |
Supercomputer | supercomputer | 2.7 | ![]() |
Superdoku | superdoku | 6.7 | ![]() |
Superyatzy | superyatzy | 2.0 | ![]() |
Supply Routes | supplyroutes | 4.3 | ![]() |
Suspension Bridges | suspensionbridges | 3.7 | ![]() |
Svada | svada | 4.0 | ![]() |
Svemir | svemir | 5.5 | ![]() |
Map of Sweden | sverigekartan | 5.1 | ![]() |
Support Vector Machine | svm | 4.2 | ![]() |
Swap to Sort | swaptosort | 3.0 | ![]() |
Sylvester Construction | sylvester | 2.3 | ![]() |
Symmetric Order | symmetricorder | 1.6 | ![]() |
Synchronizing Lists | synchronizinglists | 1.6 | ![]() |
T9 Spelling | t9spelling | 1.8 | ![]() ![]() |
Tabs and spaces | tabsandspaces | 3.6 | ![]() |
Tai's formula | taisformula | 1.6 | ![]() |
Tajna | tajna | 2.0 | ![]() |
Takk fyrir mig | takkfyrirmig | 1.2 | ![]() |
Taktsveðjur | taktsvedjur | 3.5 | ![]() |
Tall Towers | talltowers | 6.8 | ![]() |
Talnalás | talnalas | 3.9 | ![]() |
Target Practice (1) | target | 6.1 | ![]() |
Target Practice (2) | targetpractice | 4.6 | ![]() |
Tarifa | tarifa | 1.4 | ![]() ![]() |
Tautology | tautology | 2.9 | ![]() |
Taxi Cab Scheme | taxicab | 6.1 | ![]() |
Taxing Problem | taxing | 4.7 | ![]() |
Tax the Rich | taxtherich | 5.8 | ![]() |
Teacher Evaluation | teacherevaluation | 2.7 | ![]() |
Happy Telephones | telephones | 2.9 | ![]() |
Time Travelling Temperatures | temperature | 2.3 | ![]() |
Temperature Confusion | temperatureconfusion | 2.8 | ![]() |
Teningasafn | teningasafn | 7.1 | ![]() |
Tenis | tenis | 3.6 | ![]() |
Tenkici | tenkici | 5.6 | ![]() |
Teque | teque | 3.8 | ![]() ![]() |
Ternarian Weights | ternarianweights | 3.8 | ![]() |
Terraces | terraces | 3.6 | ![]() |
Test | test2 | 4.5 | ![]() |
Test Drive | testdrive | 1.9 | ![]() |
Tetration | tetration | 1.7 | ![]() |
Tetris | tetris | 1.9 | ![]() |
Texas Summers | texassummers | 4.0 | ![]() |
Text Encryption | textencryption | 3.5 | ![]() |
Text Messaging Outrage | textmessaging | 3.1 | ![]() |
Texture Analysis | textureanalysis | 2.8 | ![]() |
Thank God it’s Friday | tgif | 3.0 | ![]() |
Thanos | thanos | 2.5 | ![]() |
Thanos the Hero | thanosthehero | 3.3 | ![]() |
The Backslash Problem | thebackslashproblem | 2.3 | ![]() |
The Deal of the Day | thedealoftheday | 2.3 | ![]() |
The Grand Adventure | thegrandadventure | 2.0 | ![]() |
The King of the North | thekingofthenorth | 4.1 | ![]() |
The Last Problem | thelastproblem | 1.6 | ![]() |
The Plank | theplank | 1.6 | ![]() |
Thermostat Trouble | thermostat | 3.6 | ![]() |
Thesaurus | thesaurus | 4.8 | ![]() |
I'm Thinking of a Number | thinkingofanumber | 3.9 | ![]() |
This Ain't Your Grandpa's Checkerboard | thisaintyourgrandpascheckerboard | 1.8 | ![]() |
Thore's self-esteem | thore | 4.2 | ![]() |
Thoring test | thoringtest | 2.0 | ![]() |
Three Digits | threedigits | 6.0 | ![]() |
3D Printer | threedprinter | 8.6 | ![]() |
Three Powers | threepowers | 2.4 | ![]() |
Game of Throwns | throwns | 2.7 | ![]() |
Ticket Completed | ticketcompleted | 3.8 | ![]() |
Plane Ticket Pricing | ticketpricing | 4.3 | ![]() |
Tic-Tac State | tictacstate | 2.6 | ![]() |
Tic Tac Toe (1) | tictactoe | 8.8 | ![]() |
Tic Tac Toe (2) | tictactoe2 | 4.1 | ![]() |
Tic Tac Toe Counting | tictactoecounting | 3.5 | ![]() |
Tide Goes In, Tide Goes Out | tide | 3.8 | ![]() |
Tight words | tight | 2.8 | ![]() |
Tight-Fit Sudoku | tightfitsudoku | 4.5 | ![]() |
Tightly Packed | tightlypacked | 5.8 | ![]() |
Tildes | tildes | 2.8 | ![]() |
Tile Cutting | tiles | 3.3 | ![]() |
Til hamingju | tilhamingju | 1.1 | ![]() |
Timebomb | timebomb | 1.9 | ![]() |
Stuck In A Time Loop | timeloop | 1.3 | ![]() ![]() ![]() |
Time Zones | timezones | 4.4 | ![]() |
Timing | timing | 3.6 | ![]() |
Tired Terry | tiredterry | 3.3 | ![]() |
Title Cost | titlecost | 1.6 | ![]() |
Töflur | toflur | 2.5 | ![]() |
Toilet Seat | toilet | 2.3 | ![]() |
Tok Tik | toktik | 1.6 | ![]() |
ToLower | tolower | 2.3 | ![]() |
Tölvunarfræðingar telja | tolvunarfraedingartelja | 1.1 | ![]() |
Tomography | tomography | 3.5 | ![]() |
Torn to Pieces | torn2pieces | 3.4 | ![]() |
Tower Construction | tornbygge | 1.7 | ![]() |
Touchdown! | touchdown | 3.9 | ![]() |
Touchscreen Keyboard | touchscreenkeyboard | 2.2 | ![]() |
Tour de France | tourdefrance | 2.9 | ![]() |
Tourist | tourist | 6.1 | ![]() |
Tourists | tourists | 4.1 | ![]() |
A Towering Problem | towering | 2.8 | ![]() |
Towers of Powers 2 - Power Harder | towers | 9.4 | ![]() |
Toys | toys | 3.9 | ![]() |
Toy Train Tracks | toytraintracks | 6.0 | ![]() |
Tracking Shares | trackingshares | 2.4 | ![]() |
Track Smoothing | tracksmoothing | 1.8 | ![]() |
Tractor | tractor | 5.5 | ![]() |
Bumper-To-Bumper Traffic | traffic | 4.0 | ![]() |
Trailing Digits | trailingdigits | 6.6 | ![]() |
Train Boarding | trainboarding | 4.3 | ![]() |
Training | training | 1.5 | ![]() |
Train Passengers | trainpassengers | 2.8 | ![]() ![]() |
Train Sorting | trainsorting | 5.3 | ![]() |
Train Timetables | traintimetables | 2.9 | ![]() |
Tram | tram | 2.2 | ![]() |
Transit Woes | transitwoes | 1.6 | ![]() |
Translators' Dinner | translatorsdinner | 5.3 | ![]() |
Transportation Delegation | transportation | 5.8 | ![]() |
Transportation Planning | transportationplanning | 4.5 | ![]() |
Trapizza | trapizza | 2.2 | ![]() |
Travelling Caterpillar | travellingcaterpillar | 3.5 | ![]() |
Travel the Skies | traveltheskies | 3.0 | ![]() |
Treasure Hunt (1) | treasure | 7.5 | ![]() |
Treasure Diving | treasurediving | 6.2 | ![]() |
Treasure Hunt (2) | treasurehunt | 2.6 | ![]() |
Tree Hopping | treehopping | 6.2 | ![]() |
Treehouses | treehouses | 2.8 | ![]() |
Treequivalence | treequivalence | 7.9 | ![]() |
Tree Shopping | treeshopping | 4.0 | ![]() |
Three in a Row | treirad | 1.6 | ![]() |
Trending Topic | trendingtopic | 5.0 | ![]() |
Tri | tri | 1.9 | ![]() |
Sierpiński Circumference | triangle | 3.0 | ![]() |
Triangle To Hexagon | triangle2hexagon | 3.8 | ![]() |
Triangle Containment | trianglecontainment | 6.6 | ![]() |
Triangle Drama | triangledrama | 2.9 | ![]() |
Triangle Ornaments | triangleornaments | 2.1 | ![]() |
Triangles (1) | triangles | 7.1 | ![]() |
Triangles (2) | triangles2 | 8.4 | ![]() |
Triangle Area | triarea | 1.3 | ![]() |
Number Trick | trick | 6.9 | ![]() |
Trick or Treat | tricktreat | 3.1 | ![]() |
Tricky Factoring | trickyfactoring | 6.3 | ![]() |
Tricky Triangulation | trickytriangulation | 7.1 | ![]() |
Trik | trik | 1.5 | ![]() |
Triangle Trilemma | trilemma | 3.5 | ![]() |
Triolingo Push | triolingopush | 6.5 | ![]() |
The Trip | trip | 6.5 | ![]() |
The Trip, 2007 | trip2007 | 3.0 | ![]() |
Triple Sevens | triplesevens | 1.4 | ![]() |
Triple Texting | tripletexting | 1.8 | ![]() |
Trip Odometer | tripodometer | 2.3 | ![]() |
Trip Planning | tripplanning | 3.4 | ![]() |
Tri Tiling | tritiling | 3.2 | ![]() |
Trojke | trojke | 3.5 | ![]() |
Troll Hunt | trollhunt | 2.5 | ![]() |
Travelling Salesperson 2D | tsp | 9.5 | ![]() |
Tug of War | tugofwar | 7.2 | ![]() |
Tunnelling the Earth | tunnelingtheearth | 3.1 | ![]() |
Turbo | turbo | 4.5 | ![]() |
Turtle Master | turtlemaster | 3.0 | ![]() |
ICPC Tutorial | tutorial | 3.4 | ![]() |
Twenty Four, Again | twentyfour | 6.4 | ![]() |
Take Two Stones | twostones | 1.2 | ![]() ![]() ![]() ![]() ![]() ![]() |
Two-sum | twosum | 1.2 | ![]() |
Typo | typo | 6.5 | ![]() |
Úllen dúllen doff | ullendullendoff | 1.6 | ![]() |
Úllen Dúllen Doff 2 | ullendullendoff2 | 2.4 | ![]() |
Ultimate Binary Watch | ultimatebinarywatch | 1.9 | ![]() |
Ultra-QuickSort | ultraquicksort | 5.0 | ![]() |
Umbral Decoding | umbraldecoding | 7.6 | ![]() |
Umferð | umferd | 1.3 | ![]() |
Umm Code | ummcode | 3.4 | ![]() |
Undead or Alive | undeadoralive | 1.4 | ![]() |
UnDetected | undetected | 3.4 | ![]() |
(un)Fair Play | unfairplay | 5.7 | ![]() |
Unicycle Counting | unicycles | 7.3 | ![]() |
Union-Find | unionfind | 4.1 | ![]() |
Unique Dice | uniquedice | 5.0 | ![]() |
Units | units | 3.3 | ![]() |
University Zoning | universityzoning | 2.9 | ![]() |
Unlock Pattern | unlockpattern | 1.8 | ![]() |
Unlock Pattern II | unlockpattern2 | 7.1 | ![]() |
Unown Code | unowncode | 7.7 | ![]() |
Unown Code (Easy) | unowncodeeasy | 4.9 | ![]() |
Unread Messages | unreadmessages | 4.3 | ![]() |
Unusual Darts | unusualdarts | 4.6 | ![]() |
Up and Away | upandaway | 4.6 | ![]() |
Up and Away Again | upandawayagain | 7.5 | ![]() |
Arrangement | upprodun | 1.6 | ![]() |
The Ups and Downs of Investing | upsanddownsofinvesting | 3.5 | ![]() |
Urban Design | urbandesign | 4.2 | ![]() |
Using Digits | usingdigits | 4.3 | ![]() |
UTF-8 | utf8 | 2.3 | ![]() |
Uuu | uuu | 9.5 | ![]() |
The Uxuhul Voting System | uxuhulvoting | 3.1 | ![]() |
Vaccine Efficacy | vaccineefficacy | 3.0 | ![]() |
Vacuumba | vacuumba | 2.0 | ![]() |
Right-of-Way | vajningsplikt | 2.2 | ![]() |
Variable Names | variabelnamn | 3.3 | ![]() |
Variable Arithmetic | variablearithmetic | 2.4 | ![]() |
Varied Amusements | variedamusements | 3.0 | ![]() |
Vasaloppet | vasaloppet | 5.5 | ![]() |
Vauvau | vauvau | 2.1 | ![]() |
Veci | veci | 2.1 | ![]() |
Vector Functions | vectorfunctions | 2.8 | ![]() |
Veður - Lokaðar heiðar | vedurheidar | 1.4 | ![]() |
Veður - Vindhraði | vedurvindhradi | 1.5 | ![]() |
Vefþjónatjón | vefthjonatjon | 1.6 | ![]() |
Boiling Vegetables | vegetables | 3.5 | ![]() |
Veggja Kalli | veggjakalli | 3.6 | ![]() |
Velkomin! | velkomin | 1.0 | ![]() |
Who can win | vemkanvinna | 4.4 | ![]() |
Who wins | vemvinner | 1.9 | ![]() |
Victory Through Synergy | victorythroughsynergy | 4.3 | ![]() |
Video Speedup | videospeedup | 1.8 | ![]() |
Viðsnúningur | vidsnuningur | 1.2 | ![]() |
Villager Trading | villagertrading | 7.1 | ![]() |
Vin Diagrams | vindiagrams | 5.2 | ![]() |
Virtual Friends | virtualfriends | 3.3 | ![]() |
Virus Replication | virus | 3.7 | ![]() |
VisuAlgo Online Quiz | visualgo | 3.4 | ![]() |
VivoParc | vivoparc | 5.2 | ![]() |
Volim | volim | 1.7 | ![]() |
Volume Amplification | volumeamplification | 6.3 | ![]() |
Count von Walken's Fence | vonwalken | 6.5 | ![]() |
Popular Vote | vote | 2.0 | ![]() |
Vuk | vuk | 3.8 | ![]() |
Waif Until Dark | waif | 2.6 | ![]() |
A Walk Through The Forest | walkforest | 5.1 | ![]() |
Trapezoid Walkway | walkway | 3.3 | ![]() |
Lifting Walls | walls | 4.4 | ![]() |
Walrus Weights | walrusweights | 3.8 | ![]() |
Warehouse | warehouse | 2.1 | ![]() |
War on Weather | waronweather | 3.4 | ![]() |
Warring Scoring | warringscoring | 3.2 | ![]() |
Watchdog | watchdog | 2.3 | ![]() |
Water | water | 3.9 | ![]() |
Water Journal | waterjournal | 2.0 | ![]() |
Watersheds | watersheds | 3.6 | ![]() |
Waterworld | waterworld | 2.3 | ![]() ![]() |
Weak Vertices | weakvertices | 1.5 | ![]() |
Weather Report | weather | 3.1 | ![]() |
Wedding | wedding | 5.6 | ![]() |
The Weight Of Words | weightofwords | 2.5 | ![]() |
Welcome to Code Jam (Easy) | welcomeeasy | 2.1 | ![]() |
Welcome to Code Jam (Hard) | welcomehard | 4.0 | ![]() |
WERTYU | wertyu | 3.1 | ![]() |
Wet Tiles | wettiles | 4.1 | ![]() |
WFF 'N PROOF | wffnproof | 3.0 | ![]() |
Whac-a-Mole | whacamole | 6.0 | ![]() |
What does the fox say | whatdoesthefoxsay | 2.1 | ![]() ![]() |
What's In It For Me | whatsinit | 6.7 | ![]() |
Wheels | wheels | 3.5 | ![]() |
Where Have You Bin | wherehaveyoubin | 5.6 | ![]() |
Where's My Internet | wheresmyinternet | 2.7 | ![]() |
Where's My Waterfall | wheresmywaterfall | 3.0 | ![]() |
Where to Live | wheretolive | 3.9 | ![]() |
Which Base is it Anyway | whichbase | 2.6 | ![]() |
Which is Greater | whichisgreater | 1.2 | ![]() |
Who Goes There | whogoesthere | 4.1 | ![]() |
Who's the Boss | whostheboss | 5.0 | ![]() |
Widget Tree | widgettree | 7.0 | ![]() |
Wi-Fi | wifi | 4.1 | ![]() |
Wimbledon | wimbledon | 4.7 | ![]() |
Window Manager | windows | 8.0 | ![]() |
Wipe Your Whiteboards | wipeyourwhiteboards | 5.7 | ![]() |
Witch Dance | witchdance | 3.6 | ![]() |
Witchwood | witchwood | 3.8 | ![]() |
Wizard of Odds | wizardofodds | 2.8 | ![]() |
Wood Cutting | woodcutting | 2.9 | ![]() |
Wooden Signs | woodensigns | 3.1 | ![]() |
Word Cloud | wordcloud | 2.4 | ![]() |
Word Clouds Revisited | wordclouds | 4.7 | ![]() |
Word Ladder (1) | wordladder2 | 7.2 | ![]() |
Word Ladder (2) | wordladder3 | 5.7 | ![]() |
Wordle with Friends | wordlewithfriends | 5.2 | ![]() |
Words for Numbers | wordsfornumbers | 3.0 | ![]() |
WordSpin | wordspin | 5.2 | ![]() |
Working From Home | workingfromhome | 4.4 | ![]() |
Workout for a Dumbbell | workout | 5.3 | ![]() |
Assigning Workstations | workstations | 2.7 | ![]() |
The Worm in the Apple | worminapple | 3.7 | ![]() |
Worst Weather Ever | worstweather | 7.2 | ![]() |
Board Wrapping | wrapping | 3.6 | ![]() |
Tima goes to Xentopia | xentopia | 4.6 | ![]() |
XOR Equation | xorequation | 4.8 | ![]() |
Xor Maximization | xormax | 6.4 | ![]() |
XYZZY | xyzzy | 6.1 | ![]() |
Yet Another Divisor Problem | yetanotherdivisorproblem | 7.6 | ![]() |
Yin and Yang Stones | yinyangstones | 1.8 | ![]() |
Yoda | yoda | 2.1 | ![]() |
You Be the Judge! | youbethejudge | 5.7 | ![]() |
You be The Judge, Again | youbethejudge2 | 3.5 | ![]() |
Zadaca | zadaca | 3.8 | ![]() |
Zagrade | zagrade | 3.5 | ![]() |
Zamka | zamka | 1.4 | ![]() ![]() |
Stand on Zanzibar | zanzibar | 1.4 | ![]() |
Zapis | zapis | 5.1 | ![]() |
Zbrka | zbrka | 5.4 | ![]() |
Zebras and Ocelots | zebrasocelots | 3.0 | ![]() |
Zig Zag Nametag | zigzag | 3.8 | ![]() |
Zigzag | zigzag2 | 5.0 | ![]() |
Zipf's Law | zipfslaw | 5.7 | ![]() |
Zipf's Song | zipfsong | 4.7 | ![]() |
Zipline | zipline | 3.7 | ![]() |
Znanstvenik | znanstvenik | 3.8 | ![]() |
Zoning | zoning | 5.4 | ![]() |
Un-bear-able Zoo | zoo | 1.8 | ![]() |
Zoom | zoom | 1.6 | ![]() |
Zyxab | zyxab | 2.6 | ![]() |
These problems can only be found in NUS Kattis and therefore do not contribute to the number of problems solved.
Problem Name | Problem ID | Languages |
---|---|---|
Going to Seed (2) | goingtoseed2 | ![]() |
Graph Data Structure 1 | graphds1 | ![]() |
Master Theorem | mastertheorem | ![]() |
Matrix Multiplication | matrixmultiplication | ![]() ![]() ![]() ![]() |
One-Punch Wall | onepunch | ![]() |
Racing Game | racinggame | ![]() |
Beautiful Subarrays | subarrays | ![]() |