This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
int pa[1505];
int cnt[1505];
int m;
int find(int x){
return pa[x] = (pa[x] == x ? x : find(pa[x]));
}
void initialize(int n){
m = n;
for(int i=0; i<=n; i++) pa[i] = i;
}
int hasEdge(int u, int v){
cnt[u]++;
cnt[v]++;
if(cnt[u] == m-1 || cnt[v] == m-1){
if(find(u) != find(v)){
pa[u] = v;
return 1;
}
return 0;
}
return 0;
}
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