Tietoverkko

input/code.cpp: In function 'int main()':
input/code.cpp:49:9: warning: unused variable 'ocounter' [-Wunused-variable]
     int ocounter=-1; 
         ^~~~~~~~

 
#include <bits/stdc++.h>

using namespace std; 
int N;
vector<pair<int,int>> v[200000];
long long int minsum; 
long long int sum;
int vasen=0; 
int oikea= 0; 
int alku; 
int loppu; 
void haku(int s, int e, int target){
    vasen++; 
    oikea++;
   // cout<<" 3";

    for(auto u: v[s]){

        if(u.first!=e&&u.second>target) haku(u.first, s, target);
        if(u.first!=e&&u.second==target){
            
                int temp1=vasen; 
                int temp2=oikea; 
                vasen=0; 
                haku(e, s, target);
               // cout<<"vasen "<<vasen<<endl;
                int temp=vasen; 
                oikea=0; 
                haku(loppu, alku, target);
                //cout<<"oikea "<<oikea<<endl;
                minsum+=temp*oikea*target;
               // cout<<"minsum "<<minsum<<endl;
                vasen=temp1;
                oikea=temp2; 
                
        }
    }


}
   
int main()
{
    long long int i, a,b,c;
    sum=0; 
    minsum=0; 
    int ocounter=-1; 

    cin>>N; 
    vector<vector<long long int>> di; 
    for(i=0; i<N-1; i++){
        cin>>a>>b>>c;
        di.push_back({a,b,c});
        v[a].push_back({b,c});
        v[b].push_back({a,c});
    }
   
    for(auto kl: di){
        vasen=0;
        alku=kl[0];
        loppu=kl[1];
        //cout<<"1";
        haku(kl[0], kl[1] , kl[2]);
        int kpp=vasen;
        oikea=0;
        
        alku=kl[1];
        loppu=kl[0];
       
        haku(kl[1], kl[0], kl[2]);
       // cout<<"2";
        //cout<<kl[2]*(juu*oikea)<<endl;
        sum+= kl[2]*kpp*oikea;
    }
   // cout<<"minsum "<<minsum<<" "<<sum<<endl;
    cout<<sum+(minsum/2);

  
    return 0;
}

Test 1

Group: 1, 2, 3

Verdict: RUNTIME ERROR

Test 2

Group: 2, 3

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc