Wednesday, May 30, 2018

UVA - 10509 .cpp file

#include<bits/stdc++.h>
using namespace std;
int main()
{
    double f;
    while(cin>>f,f)
    {
        double a = floor(pow(f, 1/3.0)+1e-6);
        double dx = (f-a*a*a)/3.0/a/a;
        printf("%.4lf\n", a+dx);
    }
    return 0;
}

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