Cod sursa(job #257358)
Utilizator | Data | 13 februarie 2009 04:56:10 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | c | Status | done |
Runda | Arhiva educationala | Marime | 0.58 kb |
#include<stdio.h>
#include<stdlib.h>
#define max 1999999973
long put(long a, long b)
{
long result=1;
while(b)
{
if(b%2==1)
{
result=(result*(a%max))%max;
b=b-1;
}
else
{
a=(a*a)%max;
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))));
fclose(f);
fclose(g);
return 0;
}