Help me please.
I can't find error
this is my code:
#include<iostream>
#include<cstdio>
#include<vector>
#include<algorithm>
using namespace std;
int main(){
    int n,m;
    cin>>n>>m;
    int i;
    vector<pair<int,pair<int,int> > >a(m);
    vector<int>c(n);
    for(i=0;i<m;i++)
        cin>>a[i].second.first>>a[i].second.second>>a[i].first;
    for(i=0;i<n;i++)
        c[i]=i;

    sort(a.begin(),a.end());
    int kil=n;
    int pot=0;
    while(kil>1){
        if(c[a[pot].second.first]!=c[a[pot].second.second]){
            int c2=c[a[pot].second.second];
            int c1=c[a[pot].second.first];
            for(i=0;i<n;i++)
                if(c[i]==c2)
                    c[i]=c1;
            kil--;
        }
        pot++;
    }
    cout<<a[pot-1].first<<endl;
    cout<<pot<<endl;
    for(i=0;i<pot;i++)
        cout<<a[i].second.first<<' '<<a[i].second.second<<endl;
    return 0;
}

Edited by author 22.07.2008 16:20