Submission #1010748

#	Time	Username	Problem	Language	Result	Execution time	Memory
1010748		vjudge1	timeismoney (balkan11_timeismoney)	C++11	0 / 100	3 ms	876 KiB

timeismoney

#include<bits/stdc++.h>
using namespace std;
long long n,m,ai,bi,ti,ci,sum,par[201];
vector<pair<int,int> >v[201];
vector<pair<long long,pair<int,int> > >edging;
int get(int x){
	if(par[x]==x)return x;
	return par[x]=get(par[x]);
}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cin>>n>>m;
	for(int i=0;i<n;i++)par[i]=i;
	for(int i=0;i<m;i++){
		cin>>ai>>bi>>ti>>ci;
		v[ai].push_back({bi,ci});
		v[bi].push_back({ai,ci});
		edging.push_back({ci,{ai,bi}});
	}
	sort(edging.begin(),edging.end());
	for(int i=0;i<m;i++){
		long long ci=edging[i].first;
		int ai=edging[i].second.first;
		int bi=edging[i].second.second;
		if(get(ai)!=get(bi)){
			par[ai]=get(bi);
			sum+=ci;
		}
	}
	cout<<sum*sum;
	return 0;
}

• Subtask 1: 0 / 100