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100 CodeChef Laddus for Top Performing Team from NIT Durgapur
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I didn’t get time to implement but I think it’s just a bipartite matching problem on the divisors. I mean say we have 2 x N nodes,[1 → N and A_1 → A_n]. then we make edges from A_i to it’s diviors and then we’ll have to find any perfect matching.