Leetcode October 2020 Challenge Solutions | |

Solutions will be in CPP, might add solutions in other languages as well later.

Challenge Link

Week 1 ✅

1. Number of Recent Calls ➡️ CPP Solution
2. Combination Sum ➡️ CPP Solution
3. K-diff Pairs in an Array ➡️ CPP Solution
4. Remove Covered Intervals ➡️ CPP Solution
5. Complement of Base 10 Integer ➡️ CPP Solution
6. Insert into a Binary Search Tree ➡️ CPP Solution
7. Rotate List ➡️ CPP Solution

Week 2 ✅

1. Binary Search ➡️ CPP Solution
2. Serialize and Deserialize BST ➡️ CPP Solution
3. Minimum Number of Arrows to Burst Balloons ➡️ CPP Solution
4. Remove Duplicate Letters ➡️ CPP Solution
5. Buddy Strings ➡️ CPP Solution
6. Sort List ➡️ CPP Solution
7. House Robber II ➡️ CPP Solution

Week 3 ✅

1. Rotate Array ➡️ CPP Solution
2. Search a 2D Matrix ➡️ CPP Solution
3. Repeated DNA Sequences ➡️ CPP Solution
4. Best Time to Buy and Sell Stock IV ➡️ CPP Solution
5. Minimum Domino Rotations For Equal Row ➡️ CPP Solution
6. Clone Graph ➡️ CPP Solution
7. Asteroid Collision ➡️ CPP Solution

Week 4 ✅

1. Minimum Depth of Binary Tree ➡️ CPP Solution
2. 132 Pattern ➡️ CPP Solution
3. Bag of Tokens ➡️ CPP Solution
4. Stone Game IV ➡️ CPP Solution
5. Champagne Tower ➡️ CPP Solution
6. Linked List Cycle II ➡️ CPP Solution
7. Summary Ranges ➡️ CPP Solution

Week 5 ✅

1. Maximize Distance to Closest Person ➡️ CPP Solution
2. Number of Longest Increasing Subsequence ➡️ CPP Solution
3. Recover Binary Search Tree ➡️ CPP Solution

Other Challenges 💪

• Leetcode July 2020 Challenge

• Leetcode August 2020 Challenge

• Leetcode September 2020 Challenge

• Leetcode November 2020 Challenge

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