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NC24325 [USACO 2012 Mar S]Flowerpot
NC24325 [USACO 2012 Mar S]Flowerpot 题目 题目描述 Farmer John has been having trouble making his plants grow, and needs your help to water them properly. You are given the locations of N raindrops (1 <= N <= 100,000) in the 2D plane, where y represents