Submission #161696

#	Time	Username	Problem	Language	Result	Execution time	Memory
161696		Minnakhmetov	Sure Bet (CEOI17_sure)	C++14	0 / 100	2 ms	376 KiB

sure

#include <bits/stdc++.h>
    
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
 
using namespace std;

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);

    int n;
    cin >> n;

    set<double> sta, stb;

    for (int i = 0; i < n; i++) {
        double a, b;
        cin >> a >> b;
        sta.insert(a);
        stb.insert(b);
    }

    double sa = 0, sb = 0, ans = 0;
    for (int i = 1; i <= 2 * n; i++) {
        if (sta.empty() || stb.empty())
            break;
        if (sa > sb) {
            sb += *stb.rbegin();
            stb.erase(prev(stb.end()));
        }
        else {
            sa += *sta.rbegin();
            sta.erase(prev(sta.end()));   
        }

        ans = max(ans, min(sa, sb) - i);
    }

    cout << fixed << setprecision(10) << ans;

    return 0;
}

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