摘要:
hdu 2066 1 #include<iostream> 2 #include<cstdio> 3 #include<cstring> 4 #include<queue> 5 #include<map> 6 using namespace std; 7 #define INF 0x3f3f3f3f 阅读全文
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摘要:
6690: Transit Tree Path 题目描述 You are given a tree with N vertices.Here, a tree is a kind of graph, and more specifically, a connected undirected graph 阅读全文