Interactive Matrix
Chef and his wife Chefina started playing a new game. At the beginning of the game, Chefina secretly writes down a matrix $A$ with $N$ rows (numbered $1$ through $N$) and $N$ columns (numbered $1$ through $N$). All elements of this matrix are distinct positive integers. Then, Chefina asks Chef to find the position (row and column) of the element with value $V$, or determine that such an element d
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solution.cppC++17
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