Cod sursa(job #257357)
Utilizator | Vlad Voicu Godies | Data | 13 februarie 2009 04:51:40 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | c | Status | done |
Runda | Arhiva educationala | Marime | 0.54 kb |
#include<stdio.h>
#include<stdlib.h>
long put(long a, long b)
{
long result=1;
while(b)
{
if(b%2==1)
{
result=(result*a)%1999999973;
b=b-1;
}
else
{
a=(a*a)%1999999973;
b=b/2;
}
}
return (result);
}
int main()
{
long a, b;
FILE *f=fopen("lgput.in" , "rt");
FILE *g=fopen("lgput.out" , "wt");
fscanf(f , "%ld%ld" , &a, &b);
fprintf(g, "%ld" , ((put(a, b))));
return 0;
}