Cod sursa(job #352552)
Utilizator | Data | 2 octombrie 2009 11:55:08 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.31 kb |
#include <cstdio>
const int M=1999999973;
int a,n;
int main()
{
freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
scanf("%d%d",&a,&n);
if (n==0) return 1;
int p=1;
while (n)
{
if (n&1)
p=(long long)p*a%M;
a=(long long)a*a%M;
n>>=1;
}
printf("%d",p);
return 0;
}