Submission #1240532

#	Time	Username	Problem	Language	Result	Execution time	Memory
1240532		Zero	Balloons (CEOI11_bal)	C++20	100 / 100	121 ms	1972 KiB

bal

#include <bits/stdc++.h>

using namespace std;

signed main(){
    cin.tie(0)->sync_with_stdio(0);
    
    int n; cin >> n;
    
    stack<pair<double,double>> st;
    
    for(int i=0; i < n; i ++){
        double x,r; cin >> x >> r;
        
        while(!st.empty()){
            auto y = st.top();
            double x1 = y.first;
            double r1 = y.second;
            double ds = x-x1;
            r = min(r,(ds*ds/r1/4.0));
            if(r1 <= r) st.pop();
            else break;
        }
        st.push({x,r});
        cout << fixed << setprecision(3) << 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: 10 / 10
• Subtask 10: 10 / 10