This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
vector<int> c;
void initialize(int n) {
c.assign(n,0);
}
int hasEdge(int u, int v) {
if(v<u) swap(u,v);
c[v]++;
return c[v]==v;
}
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