Submission #1324242

#	Time	Username	Problem	Language	Result	Execution time	Memory
1324242		speedcode	Balloons (CEOI11_bal)	C++17	100 / 100	97 ms	5332 KiB

bal

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<pair<double, double>> results;

    vector<pair<double, double>> balls;

    for (int i = 0; i < n; i++)
    {
        double x, r;
        cin >> x >> r;

        while(balls.size()){
            auto &[x1, r1] = balls[balls.size()-1];
            r = min(r, (x-x1)*(x-x1)/4.0/r1);
            if(r >= r1){
                balls.pop_back();
            }else{
                break;
            }
        }

        results.push_back({x, r});
        balls.push_back({x, r});
    }

    for(auto &[x1, r1] : results){
    
        cout << setprecision(3) << fixed << r1 << '\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