Submission #806147

#	Time	Username	Problem	Language	Result	Execution time	Memory
806147		vjudge1	Let's Win the Election (JOI22_ho_t3)	C++14	5 / 100	1 ms	340 KiB

Main

#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define ld long double
using namespace std ;
const int N = 500 ;
bool flag1, flag2 ;
int n, k ;
pair<pair<ld, ld>, int> p[N + 1] ;
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n ;
    cin >> k ;
    for(int i = 1 ; i <= n ; i++)
    {
        cin >> p[i].fi.fi >> p[i].fi.se ;
        p[i].se = i ;
//        cout << i << ' ' << flag1 << '\n' ;
        if(p[i].fi.se != -1)
            flag1 = 1 ;
        if(p[i].fi.se != -1 && p[i].fi.se != p[i].fi.fi)
            flag2 = 1 ;
    }
    if(!flag1)
    {
        sort(p + 1, p + n + 1) ;
        ld ans = 0 ;
        for(int i = 1 ; i <= k ; i++)
            ans += p[i].fi.fi ;
        cout << fixed << setprecision(9) << ans ;
        return 0 ;
    }
    return 0 ;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 33
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23