Queens Placement

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In order to impress Chefina, Chef is trying to improve his chess calculation skills. Today, Chef took a big chessboard with $N$ rows (numbered $1$ through $N$) and $N$ columns (numbered $1$ through $N$). Let's denote the square in row $r$ and column $c$ of the chessboard by $(r, c)$. Chef wants to place some queens on this chessboard in such a way that the following conditions are satisfied: - Ea

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solution.cppC++17

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