Cod sursa(job #404941)
Utilizator | Data | 26 februarie 2010 23:18:35 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include<stdio.h>
#define modulo 1999999973
int main()
{
freopen("lgput.in","r",stdin);
freopen("lgput.out","w",stdout);
int a,b;
scanf("%d %d",&a,&b);
long long c = a;
long long d = b, p = 1,rez = 1;
while( d)
{
if( d & p)
{
rez = (rez * c) % modulo;
d ^= p;
}
c = (c * c)% modulo;
p *= 2;
}
printf("%d\n",(int)rez);
return 0;
}