摘要： http://poj.org/problem?id=2378他人具体代码：View Code #include<cstdio>#include<vector>#include<cstring>using namespace std;const int maxn = 10010;vector<int> edge[maxn];int sum[maxn],ans[maxn],n;void dfs(int u,int fa){ sum[u]=1; int i,j; bool flag=true; for(i=0;i<edge[u].size();i 阅读全文