제출 #1338076

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1338076		xnoel	Balloons (CEOI11_bal)	C++20	90 / 100	368 ms	1988 KiB

bal

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

int main(){
    //freopen("1.in","r",stdin);
    int n;
    cin>>n;
    stack<pair<long double,long double>> st;
    st.push({-1000,1});
    for (int i=0;i<n;i++) {
        long double pos, max_r;
        cin>>pos>>max_r;
        long double curr_r=max_r;
        while (!st.empty()){
            long double last_pos=st.top().first, last_r=st.top().second;
            curr_r = min(curr_r, (pos-last_pos)*(pos-last_pos)/(4*last_r));            
            if (curr_r>=last_r) st.pop();
            else break;
        }
        st.push({pos,curr_r});
        cout<<fixed<<setprecision(3)<<curr_r<<"\n";
    }
}

• 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: 0 / 10
• Subtask 10: 10 / 10