Submission #1171241

#	Time	Username	Problem	Language	Result	Execution time	Memory
1171241		AlgorithmWarrior	Balloons (CEOI11_bal)	C++20	100 / 100	332 ms	1952 KiB

bal

#include <bits/stdc++.h>

using namespace std;

int const MAX=2e5+5;

int main()
{
    stack<pair<long double,long double>>stv;
    int n;
    cin>>n;
    int i;
    for(i=1;i<=n;++i){
        long double x,r;
        cin>>x>>r;
        while(!stv.empty()){
            auto [xs,rs]=stv.top();
            if(r>(x-xs)*(x-xs)/(4*rs))
                r=(x-xs)*(x-xs)/(4*rs);
            if(r>=rs)
                stv.pop();
            else
                break;
        }
        stv.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