Submission #640727

#	Time	Username	Problem	Language	Result	Execution time	Memory
640727		socpite	timeismoney (balkan11_timeismoney)	C++14	60 / 100	35 ms	588 KiB

timeismoney

#include<bits/stdc++.h>
using namespace std;
 
#define oo 1000000000000000
#define f first
#define s second
 
vector<int> up;
 
int Find(int x){
    if(up[x] < 0)return x;
    else{
        up[x]=Find(up[x]);
        return up[x];
    }
}
 
void Union(int a, int b){
    a = Find(a);
    b = Find(b);
    up[b]=a;
}
 
long long n, m;
vector<pair<pair<int, int>,pair<long long, long long>>> E;
vector<pair<int, int>> ans;
long long tim = 0, money = 0, currpos, best;
 
bool cmp(pair<pair<int, int>,pair<long long, long long>> a, pair<pair<int, int>,pair<long long, long long>> b){
    return a.s.f*b.s.s < a.s.s*b.s.f;
}

int main(){
    cin >> n >> m;
    E.resize(m);
    up.assign(n, -1);
    for(int i = 0; i < m; i++){
        cin >> E[i].f.f >> E[i].f.s >> E[i].s.f >> E[i].s.s;
    }
    sort(E.begin(), E.end(), cmp);
    reverse(E.begin(), E.end());
    for(int j = 0; j < n-1; j++){
        best = oo;
        for(int i = 0; i < m; i++){
            if(Find(E[i].f.f) == Find(E[i].f.s))continue;
            else{
                if(tim*E[i].s.s + money*E[i].s.f + E[i].s.s*E[i].s.f < best){
                    best = tim*E[i].s.s + money*E[i].s.f + E[i].s.s*E[i].s.f;
                    currpos = i;
                }
            }
        }
        tim += E[currpos].s.f;
        money += E[currpos].s.s;
        Union(E[currpos].f.f, E[currpos].f.s);
        ans.push_back(E[currpos].f);
    }
    cout << tim << " " << money << endl;
    for(int i =0; i < ans.size(); i++){
        cout << ans[i].f << " " << ans[i].s << endl;
    }
}

Compilation message (stderr)

timeismoney.cpp: In function 'int main()':
timeismoney.cpp:59:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int i =0; i < ans.size(); i++){
      |                   ~~^~~~~~~~~~~~

• Subtask 1: 60 / 100