Submission #860908

#	Time	Username	Problem	Language	Result	Execution time	Memory
860908		vjudge1	Sure Bet (CEOI17_sure)	C++17	0 / 100	0 ms	348 KiB

sure

#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>

using namespace std;

bool srt(float a, float b) {
    return a > b;
}

int main() {
    int n, f = 0, s = 0;
    float fsum = 0, ssum = 0, res = 0;
    cin >> n;
    vector<float> a(n), b(n);
    for(int i = 0; i < n; i++) cin >> a[i] >> b[i];
    sort(a.begin(), a.end(), srt);
    sort(b.begin(), b.end(), srt);
    fsum = a[0];
    f++;
    while(f < n && s < n) {
        if(fsum > ssum) {
            while(fsum > ssum && s < n) {
                ssum+=b[s];
                s++;
                res = max(res, min(fsum, ssum)-f-s);
            }
        } else {
            while(ssum > fsum && f < n) {
                fsum+=a[s];
                f++;
                res = max(res, min(fsum, ssum)-f-s);
            }
        }
    }
    cout << fixed << setprecision(4) << res << "\n";
}

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