Codebook

To remind me of some algorithms and help people who are starting in competitive programming.
The codes are in C/C++ and are divided into the following topics:

Data Structure

• Fenwick Tree
• Fenwick Tree 2D
• Indexed Set
• Segment Tree
• Segment Tree Lazy Propagation
• Square Root Decomposition
• Mo's Algorithm
• Treap

Dynamic Programming

• Digit DP
• Longest Increasing Subsequence
• Matrix Exponentiation

Graph

Mathematics

• Geometry
• Algebra

Known Algorithms

• Kadane's Algorithm
• Inversion Count Merge Sort

String

• Hash
• KMP
• Suffix Array