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> cnt;
void initialize(int n){ cnt.assign(n,0); }
int hasEdge(int u, int v){
int m = u<v?v:u;
return (++cnt[m]==m?1:0);
}
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