Cod sursa(job #295867)
| Utilizator | Data | 3 aprilie 2009 18:57:09 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
| Compilator | c | Status | done |
| Runda | Arhiva educationala | Marime | 0.37 kb |
#include<stdio.h>
unsigned long n,p,i,prod;
long x,a;
int main()
{
freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
scanf("%lu %lu",&n,&p);
x=1999999973;
a=n;
prod=1;
for(i=0;(1<<i)<=p;i++)
{
if((1<<i)&p)
{
prod=(prod*a)%x;
a=(a*a)%x;
}
}
printf("%lu",prod);
return 0;
}