Module Matrix multiplication

Matrix multiplication

**Frequency: 1.5/10** Matrix multiplication is _mostly_ used in competitive programming to solve DP problems with unreasonably high constraints.

Resources

- [USACO: Matrix Exponentiation](https://usaco.guide/plat/matrix-expo?lang=cpp)

Problems

Fibonacci 2 252 / 264 1500
Martian language 2 103 / 107 1500
Hakurei Shrine 2 78 / 108 1600
Number sequence 96 / 111 1700
Chess 45 / 65 1800