摘要: #include#define N 31000int pre[N];int find(int x) {if(x!=pre[x]) pre[x]=find(pre[x]);return pre[x];}int main() { int n,m,i,k,s,t; while(scanf("%d%d",... 阅读全文
posted @ 2014-06-27 17:10 HYDhyd 阅读(102) 评论(0) 推荐(0) 编辑