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Need help for Knight Moves-spoj problem
what is the intuition behind this question spoj:
i am trying but able to find the correct solution for it please some one help. Btw the question is ::
A knight is located at the (black) origin of an infinite chessboard. Let f(n) define the number of black squares the knight can reach after making exactly n moves. Given n (0 <= n <= 108), output f(n).
