Code Land

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Codeland is a big country. It consist of N cities and M roads connecting the cities. The strength of road is defined by a function as : Base Cases: f(1, y) = 1 % MOD f(x, 1) = 1 % MOD f(1, 1) = 0 Function Definition: if x != y : f(x, y) = ( f(x-1, y) + f(x, y-1) + f(x-1, y-1) ) % MOD else : f(x, y) = 0 The rules of codeland are such that whenever a road is added between city x and city y then t

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solution.cppC++17

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