QUERIES ON MATRIX

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$Shreyas$ and $Anupam$ both loves to solve coding problems that are based on matrix. One day $Hritik$ gave a $two -Dimentional$ $N*M$ matrix to them, and asked them to answer $Q$ Queries , Both $Shreyas$ and $Anupam$ were able to solve that problem.Can you? There are two types of Queries in the problem:- $1.)$ $1$ $r$ $c$ $val$ : To change the value at $(r,c)$ to val. $2.)$ $2$

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solution.cppC++17

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