Submission #218337

#	Time	Username	Problem	Language	Result	Execution time	Memory
218337		Chancho	Balloons (CEOI11_bal)	C++14	100 / 100	283 ms	4984 KiB

bal

#include <iostream>
#include <stack>
#include <iomanip>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n; cin >> n;
    stack<pair<int,long double>> s;
    for(int i=0;i<n;i++){
        long double x,r; cin >> x >> r;
        while(!s.empty()){
            int X = s.top().first; double R = s.top().second;
            r = min(r,(x-X)*(x-X)/(4*(R)));
            if(r < R){
                break;
            }
            s.pop();
        }
        s.push({x,r});
        cout << fixed << setprecision(3) << r << "\n";
    }

    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