Submission #654509

#	Time	Username	Problem	Language	Result	Execution time	Memory
654509		Hanksburger	Balloons (CEOI11_bal)	C++17	100 / 100	233 ms	5468 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())
        {
            r=min(r, (x-s.top().first)*(x-s.top().first)/4.0/s.top().second);
            if (s.top().second>r)
                break;
            s.pop();
        }
        cout << fixed << setprecision(3) << r+0.000001 << '\n';
        s.push({x, r});
    }
}

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