Labeling Balls POJ - 3687 优先队列 + 反向拓扑

优先队列 + 反向拓扑html //#include<bits/stdc++.h> #include<iostream> #include<cstdio> #include<algorithm> #include<queue> #include<cstring> using namespace std; const int maxn = 1e5 + 7; int n, m; vector<int>

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