Sheldon and N-queens

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Thanasekhar sir was teaching a O(N!) solution for N-queens problem. Sheldon cooper was thinking for an easy solution for n queens problem during the class and came up with a solution. His solution is, Place the queen one by one, First queen at (1,n/2), second queen at (2,n) third queen at (3,n/2-1), fourth queen at (4,n-1) and so on. If N is odd, then solve for n-1 and place the nth queen at (n,n

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solution.cppC++17

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