Cod sursa(job #1005161)
Utilizator | Data | 4 octombrie 2013 13:31:43 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.36 kb |
#include <cstdio>
int exp(int a, int b)
{
if(!b)
return 1;
if(b == 1)
return a;
if(!(b%2))
return exp(a*a,b/2);
else
return a*exp(a*a,(b-1)/2);
}
int main()
{
freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
int n,x;
scanf("%d%d",&n,&x);
printf("%d",exp(n,x));
}