Submission #1027649

#	Time	Username	Problem	Language	Result	Execution time	Memory
1027649		vjudge1	Sure Bet (CEOI17_sure)	C++14	0 / 100	0 ms	348 KiB

sure

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define f first
#define s second

void solve(){
    int n;
    cin >> n;
    vector<double> a(n), b(n);
    double ans = 0;
    for(int i =  0; i < n; i++){
        cin >> a[i] >> b[i];
    }
    sort(a.rbegin(), a.rend());
    double x = 0, y = 0;
    int i = 0, j = 0, tu = 0;
    while(i < n && j < n){
        if(x <= y){
            x+=a[i];
            tu++;
            i++;
        }
        else{
            y+=b[j];
            tu++;
            j++;
        }
        ans=max(ans, min(x, y)-tu);
    }
    printf("%.4lf",(double)ans);
    // cout << fixed << setprecision(4) << ans << endl;
}   

signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    // cin >> t;
    while(t--){
        solve();
    }
    
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40