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 2 144 / 151 1500
Martian language 2 49 / 51 1500
Hakurei Shrine 2 40 / 66 1600
Number sequence 45 / 56 1700
Chess 21 / 36 1800