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 2 113 / 118 1500
Martian language 2 34 / 35 1500
Hakurei Shrine 2 23 / 44 1600
Number sequence 30 / 40 1700
Chess 12 / 25 1800