Submission #1014506

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014506		Khanhcsp2	Autići (COCI22_autici)	C++14	0 / 50	0 ms	348 KiB

Main

#include<bits/stdc++.h>
#define el '\n'
#define fi first
#define sc second
#define int ll
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
const int mod=1e9+7;
const int N=1e5+11;
int n, a[N], pa[N];
pii b[N];
struct gg
{
    int u, v, w;
};
vector<gg> e;
int lead(int u)
{
    if(pa[u]==u) return u;
    return pa[u]=lead(pa[u]);
}
bool cmp(gg x, gg y)
{
    return x.w < y.w;
}
void sol()
{
    cin >> n;
    for(int i=1;i<=n;i++) cin >> a[i], pa[i]=i, b[i].fi=a[i], b[i].sc=i;
    sort(b+1, b+n+1);
    for(int i=1;i<=n;i++)
    {
        if(b[1].sc!=i) e.push_back({i, b[1].sc, a[i]+b[1].fi});
        else e.push_back({i, b[2].sc, a[i]+b[2].fi});
    }
    sort(all(e), cmp); 
    int ans=0;
    for(auto x:e)
    {
        int u=lead(x.u), v=lead(x.v);
        if(u!=v)
        {
            pa[u]=v;
            ans+=x.w;
        }
    }
    cout << ans;
}
signed main()
{
//    freopen("divisor.INP", "r", stdin);
//    freopen("divisor.OUT", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t=1;
    //cin >> t;
    while(t--)
    {
        sol();
    }
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20