Codeforces 1324 F. Maximum White Subtree (树形dp) /详解
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资源说明:F. Maximum White Subtree time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output You are given a tree consisting of n vertices. A tree is a connected undirected graph with n−1 edges. Each vertex v of this tree has a color assigned to it (av=1 if the
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