Color them all

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You are given a square board of size n*n. A principal diagonal of a matrix is the diagonal connecting points (1,1) and (n,n). All the diagonals parallel to this diagonal (including itself) are called "Colorful diagonals". The given board has n*n small square boxes. Now you want to paint the board with some color. Some of the boxes are damaged beyond repair and you dont need to paint them. - You h

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solution.cppC++17

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