Submission #1194637

#	Time	Username	Problem	Language	Result	Execution time	Memory
1194637		Hamed_Ghaffari	Sure Bet (CEOI17_sure)	C++20	100 / 100	44 ms	2064 KiB

sure

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

int n;
double a[100001], b[100001];

int32_t main() {
    cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
    cin >> n;
    for(int i=0; i<n; i++) cin >> a[i] >> b[i];
    sort(a, a+n, greater<>());
    sort(b, b+n, greater<>());
    double ans = 0, A=0, B=0;
    int pa=0, pb=0;
    while(pa<n && pb<n) {
        if(A<B) A += a[pa++];
        else B += b[pb++];
        ans = max(ans, min(A, B) - pa - pb);
    }
    while(pa<n) {
        A += a[pa++];
        ans = max(ans, min(A, B) - pa - pb);
    }
    while(pb<n) {
        B += b[pb++];
        ans = max(ans, min(A, B) - pa - pb);
    }
    cout << fixed << setprecision(4) << ans << '\n';
    return 0;
}

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