Grid painting

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You have a rectangular grid of dimension N x M. You need to paint the grid with black or white color such that there is no rectangle of size X x Y having same color in each cell. Find the number of ways to paint the grid, modulo 1000000007. Input A single line containing 4 space separated integers, N, M, X and Y. Output A single line containing the answer modulo 1000000007 Constraints - 1 ≤

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solution.cppC++17

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