Submission #1218433

#	Time	Username	Problem	Language	Result	Execution time	Memory
1218433		sofija6	Balloons (CEOI11_bal)	C++20	100 / 100	140 ms	3264 KiB

bal

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main()
{
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll n;
    double x,r;
    cin >> n;
    stack<pair<double,double> > s;
    while (n--)
    {
        cin >> x >> r;
        while (!s.empty())
        {
            r=min(r,((x-s.top().first)*(x-s.top().first))/(4*s.top().second));
            if (r>=s.top().second)
                s.pop();
            else
                break;
        }
        cout << fixed << setprecision(10) << r << "\n";
        s.push({x,r});
    }
    return 0;
}

• 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