제출 #892718

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
892718		maxFedorchuk	Balloons (CEOI11_bal)	C++14	100 / 100	150 ms	5604 KiB

bal

#include <bits/stdc++.h>
using namespace std;
int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);

    long long n;
    cin>>n;

    stack < pair < long long , long double > > munbal;

    for(long long i=1;i<=n;i++)
    {
        long long x;
        long double r;

        cin>>x>>r;

        while(!munbal.empty())
        {
            long long munx=munbal.top().first;
            long double munr=munbal.top().second;

            r=min(r,((munx-x)*(munx-x)/(4*munr)));

            if(munr>r)
            {
                break;
            }
            else
            {
                munbal.pop();
            }
        }
        munbal.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