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 2 162 / 169 1500
Martian language 2 53 / 55 1500
Hakurei Shrine 2 46 / 71 1600
Number sequence 51 / 63 1700
Chess 24 / 40 1800