A Game of 4 Queens

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Prof. Mondal has given an assignment. In a 4X4 chessboard you need to place 4 queens in such a way that no two queens can sit in the same row. However, all possible pairs of queens must sit either in the same column or in the same diagonal. Otherwise, the output will show an invalid placement. Also, another rule is that the 1$^{st}$ queen will be placed in the 1$^{st}$ row, the 2$^{nd}$ queen in t

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solution.cppC++17

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