Submission #1142249

#	Time	Username	Problem	Language	Result	Execution time	Memory
1142249		lyricclamp	timeismoney (balkan11_timeismoney)	C++20	40 / 100	3 ms	776 KiB

timeismoney

#include<bits/stdc++.h>
#define endl '\n'
#define pb push_back
using ll = long long;
using namespace std;

struct something{
    ll size, boss, total;
};
vector<something> thing, edge;

ll findboss(ll x) {
    if(x == thing[x].boss) return x;
    return thing[x].boss = findboss(thing[x].boss);
}

void merge(ll x, ll y) {
    x = findboss(x);
    y = findboss(y);
    thing[y].size += thing[x].size;
    thing[x].size = thing[y].size;
    if(thing[x].size < thing[y].size) swap(x, y);
    thing[x].boss = y;
}

bool cmp(something a, something b) {
    return a.size < b.size;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie();

    ll n, m;
    cin >> n >> m;
    for(int i = 0; i < m; i++) {
        ll a, b, c;
        cin >> a >> b >> c >> c;
        edge.pb({c, a + 1, b + 1});
    }
    sort(edge.begin(), edge.end(), cmp);
    thing.resize(n + 1, {1});
    for(int i = 1; i <= n; i++) thing[i].boss = i;
    vector<pair<ll, ll>> ans;
    ll t = 0, c = 0;
    for(int i = 0; i < m; i++) {
        ll x = edge[i].boss, y = edge[i].total;
        if(findboss(x) != findboss(y)) {
            merge(x, y);
            t += edge[i].size;
            c += edge[i].size;
            ans.pb({x, y});
        }
    }
    cout << t << " " << c << endl;
    for(auto i: ans) cout << i.first - 1 << " " << i.second - 1 << endl;

    return 0;
}

• Subtask 1: 40 / 100