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

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