Cod sursa(job #1916665)
| Utilizator | Data | 9 martie 2017 10:05:15 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.41 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream in ("lgput.in");
ofstream out ("lgput.out");
double putere (double x, int n)
{
double p=1;
while(n)
{
if (n%2==1)
{
p=p*x;
n--;
}
x=x*x;
n=n/2;
}
return p;
}
int x,n;
int main()
{
in>>x>>n;
out<<putere(x,n);
return 0;
}
