Submission #1132422

#	Time	Username	Problem	Language	Result	Execution time	Memory
1132422		vicvic	Balloons (CEOI11_bal)	C++20	100 / 100	89 ms	1864 KiB

bal

#include <iostream>
#include <fstream>
#include <stack>
#include <iomanip>
#define double long double
#define int long long
using namespace std;
int n;
stack <pair <int, double>> stiva;
int32_t main()
{
    ios :: sync_with_stdio (0);
    cin.tie (nullptr);
    cin >> n;
    for (int i=1;i<=n;i++)
    {
        int x, y;
        cin >> x >> y;
        double r=y;
        while (!stiva.empty())
        {
            double len=(stiva.top().first-x)*(stiva.top().first-x);
            r=min (r, len/(4*stiva.top().second));
            if (r>stiva.top().second-1e-10)
            {
                stiva.pop();
            }
            else break;
        }
        cout << fixed << setprecision (3) << r << "\n";
        stiva.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