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;
const int N = 1600;
int cnt[N];
void initialize(int n) {
}
int hasEdge(int u, int v) {
if(u > v)swap(u, v);
return(++cnt[u] == u);
}
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