Submission #218322

#	Time	Username	Problem	Language	Result	Execution time	Memory
218322		Chancho	Balloons (CEOI11_bal)	C++14	20 / 100	263 ms	11896 KiB

bal

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n; cin >> n;
    int pila[n];
    long double x[n];
    long double r[n];
    long double ans[n];
    for(int i=0;i<n;i++){
        cin >> x[i] >> r[i];
    }
    pila[0] =0;
    int index = 0;
    for(int i=0;i<n;i++){
        if(i==0){
            ans[0] = r[0];
        }
        else{
            bool first = true;
            long double k;
            while (index >= 0){
                if(first){
                k = min(r[i],((x[i]-x[pila[index]])/(4*ans[pila[index]]))*(x[i]-x[pila[index]]));
                first = false;
                }
                else{
                k = min(k,((x[i]-x[pila[index]])/(4*ans[pila[index]]))*(x[i]-x[pila[index]]));
                }
                if(k<=ans[index]){
                    break;
                }
                pila[index] = 0;
                index--;
            }
            ans[i] = k;
            pila[index+1] = i;
            index++;
        }
        cout << fixed << setprecision(6) << ans[i] << "\n";
    }
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10