http://acm.nyist.net/JudgeOnline/problem.php?pid=42题目链接 #include <cstdio> #include <cstring> #define CLR(arr) memset(arr,0,sizeof(arr)) #define P 1001 int G[P],fa[P]; int find(int x){return x==fa[x]?x:x=find(fa[x]);} int main() { int n,a,b…
点击打开链接 Colored Sticks Time Limit: 5000MS Memory Limit: 128000K Total Submissions: 27955 Accepted: 7403 Description You are given a bunch of wooden sticks. Each endpoint of each stick is colored with some color. Is it possible to align the sticks…