Cod sursa(job #1523648)
Utilizator | Data | 12 noiembrie 2015 22:15:42 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.45 kb |
#include <fstream>
using namespace std;
int a,b,rez;
double PutereLogaritmic(double x, int n)
{
double e=1;
while(n>0)
{
if(n&1)
{
e=e*x;
n--;
}
x=x*x;
n/=2;
}
return e;
}
int main()
{
ifstream fin("lgput.in");
ofstream fout("lgput.out");
fin>>a>>b;
fout<<PutereLogaritmic(a,b);
fin.close();
fout.close();
return 0;
}