Submission #314199

#	Time	Username	Problem	Language	Result	Execution time	Memory
314199		fsstamx	Balloons (CEOI11_bal)	C++17	100 / 100	774 ms	6712 KiB

bal

#include <bits/stdc++.h>

using namespace std;

stack< pair<long double, long double> > st;
int main()
{
    ios_base::sync_with_stdio(false), cin.tie(0),
	 cout.tie(0);
    cout<< fixed << setprecision(10);
    int n;
    cin >> n;
    for(int i = 0; i < n; i++)
	{
		long double x, r;
		cin>> x >> r;
    	while(!st.empty())
		{
			long double d = st.top().first - x;
            r = min(r, d * d / 4 / st.top().second);
            if (r > st.top().second)
				st.pop();
            else
				break;
        }
        st.push(make_pair(x, r));
        cout << r << endl;
    }
}

• 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