Grid Paths II

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Consider an n \times n grid whose top-left square is (1,1) and bottom-right square is (n,n). Your task is to move from the top-left square to the bottom-right square. On each step you may move one square right or down. In addition, there are m traps in the grid. You cannot move to a square with a trap. What is the total number of possible paths? Input The first input line contains two integers

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solution.cppC++17

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