Submission #741731

#	Time	Username	Problem	Language	Result	Execution time	Memory
741731		abcvuitunggio	timeismoney (balkan11_timeismoney)	C++17	100 / 100	425 ms	644 KiB

timeismoney

#include <bits/stdc++.h>
#define int long long
#define pii pair <int, int>
#define fi first
#define se second
using namespace std;
struct edge{
    int u,v,t,c;
}e[10001];
int n,m,p[201],sz[201],mn=1e18;
vector <edge> v,res;
pii q;
int f(int i){
    return (p[i]==i?i:p[i]=f(p[i]));
}
int unite(int i, int j){
    i=f(i);
    j=f(j);
    if (i==j)
        return 0;
    if (sz[i]<sz[j])
        swap(i,j);
    p[j]=i;
    sz[i]+=sz[j];
    return 1;
}
int A,B;
pii calc(int a, int b){
    int t=0,c=0;
    A=a,B=b;
    for (int i=0;i<n;i++){
        p[i]=i;
        sz[i]=1;
    }
    sort(e+1,e+m+1,[](edge x, edge y){return x.t*A+x.c*B<y.t*A+y.c*B;});
    v.clear();
    for (int i=1;i<=m;i++){
        int y=unite(e[i].u,e[i].v);
        t+=y*e[i].t;
        c+=y*e[i].c;
        if (y)
            v.push_back(e[i]);
    }
    if (mn>t*c){
        mn=t*c;
        q={t,c};
        res=v;
    }
    return {t,c};
}
void g(pii a, pii b){
    auto c=calc(a.se-b.se,b.fi-a.fi);
    if ((c.se-a.se)*(b.fi-a.fi)==(b.se-a.se)*(c.fi-a.fi))
        return;
    g(a,c);
    g(c,b);
}
int32_t main(){
    ios_base::sync_with_stdio(NULL);cin.tie(nullptr);
    cin >> n >> m;
    for (int i=1;i<=m;i++)
        cin >> e[i].u >> e[i].v >> e[i].t >> e[i].c;
    g(calc(1,0),calc(0,1));
    cout << q.first << ' ' << q.second << '\n';
    for (auto e:res)
        cout << e.u << ' ' << e.v << '\n';
}

• Subtask 1: 100 / 100