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;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pi;
#define pb push_back
#define mp make_pair
#define f first
#define s second
vector<int> a;
int hasEdge(int u, int v) {
a[u]--; a[v]--;
if(a[u] == 0 || a[v] == 0)
return 0;
return 1;
}
void initialize(int n) {
a = vi(n, n-1);
}
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