Submission #510350

#	Time	Username	Problem	Language	Result	Execution time	Memory
510350		Monarchuwu	Sure Bet (CEOI17_sure)	C++17	60 / 100	2056 ms	3196 KiB

sure

#include<iostream>
#include<algorithm>
#include<iomanip>
using namespace std;
typedef long long ll;
typedef double db;

const int N = 1e5 + 9;
int n;
db a[N], b[N];

int main() {
    cin.tie(NULL)->sync_with_stdio(false);
    cin >> n;
    for (int i = 1; i <= n; ++i) cin >> a[i] >> b[i];

    sort(a + 1, a + n + 1, greater<db>());
    sort(b + 1, b + n + 1, greater<db>());

    db ans(0), suma(0), sumb(0);
    for (int i = 0; i <= n; ++i) {
        suma += a[i];

        sumb = 0;
        for (int j = 0; j <= n; ++j) {
            sumb += b[j];
            ans = max(ans, min(suma, sumb) - i - j);
        }
    }
    cout << fixed << setprecision(4) << ans << '\n';
}
/**  /\_/\
 *  (= ._.)
 *  / >0  \>1
**/

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