Submission #491012

#	Time	Username	Problem	Language	Result	Execution time	Memory
491012		hollwo_pelw	Sure Bet (CEOI17_sure)	C++17	60 / 100	87 ms	3528 KiB

sure

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

const int N = 1e5 + 5;

// #define int long long
int n;
long double a[N], b[N], suma, sumb, res;

signed main() {
	cin.tie(0), cout.tie(0) -> sync_with_stdio(0);
	cin >> n;
	for (int i = 1; i <= n; i++) {
	    cin >> a[i] >> b[i];
	}
	sort(a + 1, a + n + 1, greater<long double>());
	sort(b + 1, b + n + 1, greater<long double>());
	
	int pa = 0, pb = 0;
	for (int i = 1; i <= 2 * n; i++) {
	    if (suma < sumb && pa < n)
	        suma += a[++ pa];
	    else
	        sumb += b[++ pb];
	    res = max(res, min(suma, sumb) - i);
	}
	cout << fixed << setprecision(4) << res;
}

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