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akasakaR's blog

Need of a good matrix struct.
By akasakaR, history, 4 months ago, In English

Hello, So I was solving 718C - Sasha and Array, and it required me to code a whole matrix struct by itself, it doesn't support everything, but it's fine ig. I searched but couldn't find anything, I remember jiangly used it in one of his submissions but I couldn't find it. Does anyone mind sharing their own?

Mine: https://ideone.com/EYkUS2

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4 months ago, # |
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For operator* you can implement it as:

friend mat operator*(mat a, const mat &b) { return a *= b; }

Also pw(mat &a, ll b) should return the identity matrix with dimensions of $$$a$$$ for $$$b=0$$$.

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