Submission #654508

#	Time	Username	Problem	Language	Result	Execution time	Memory
654508		Hanksburger	Balloons (CEOI11_bal)	C++17	10 / 100	217 ms	4588 KiB

bal

#include <bits/stdc++.h>
using namespace std;
stack<pair<long double, long double> > s;
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    while (n--)
    {
        long double x, r;
        cin >> x >> r;
        while (s.size())
        {
            long double k=(x-s.top().first)*(x-s.top().first)/4.0/s.top().second;
            if (r<k)
                break;
            r=k;
            s.pop();
        }
        cout << fixed << setprecision(3) << r << '\n';
        while (s.size() && s.top().second<=r)
            s.pop();
        s.push({x, r});
    }
}

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10