Submission #569347

#	Time	Username	Problem	Language	Result	Execution time	Memory
569347		Edil	Road Closures (APIO21_roads)	C++17	Compilation error	0 ms	0 KiB

roads

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vct vector <int>
struct ed
{
    ll x = 0;
    set <ll> y;
};
bool cmp(ed a, ed b)
{
    if(a.x == b.x)
        return a.y > b.y;
    return a.x > b.x;
}
vector <ll> minimum_closure_costs(int n, vct u, vct v, vct w)
{
    ll sm = 0;
    vector <ll> ans(n);
    vector <ed> tr(n);
    for(ll i = 0; i < (ll)w.size(); i++)
    {
        tr[u[i]].x++;
        tr[v[i]].x++;
        tr[u[i]].y.insert(w[i]);
        tr[v[i]].y.insert(w[i]);
        sm += w[i];
    }
    ans[0] = sm;
    sm = 0;
    sort(tr.begin(), tr.end(), cmp);
    for(ll k = n-1; k > 0; k--)
    {
        ll sm2 = sm;
        sm = 0;
        for(ll i = 0; tr[i].x > k; i++)
        {
            tr[i].x--;
            sm += *tr[i].y.begin();
            tr[i].y.erase(tr[i].y.begin());
        }
        ans[k] = sm + sm2;
    }
    return ans;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    ll n;
    cin >> n;
    vector <int> u(n), v(n), w(n);
    for(int i = 0; i < n-1; i++)
        cin >> u[i] >> v[i] >> w[i];
    vector <ll> a;
    a = minimum_closure_costs(n, u, v, w);
    for(ll i : a)
        cout << i << " ";
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccjjdsTo.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccgxfTjl.o:roads.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status