Cod sursa(job #152174)
| Utilizator | Data | 9 martie 2008 09:59:27 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.41 kb |
#include<iostream>
#include<stdio.h>
#define impart 1999999973
FILE *f,*g;
int main ()
{
long n,p;
long rez=1;
f=fopen("lgput.in","r");
g=fopen("lgput.out","w");
fscanf(f,"%ld %ld",&n,&p);
fclose(f);
while(p)
{
if(p&1)
{
if(rez>=impart)
rez=(rez*n)%impart;
else
rez=rez*n;
p=p-1;
}
n=n*n;
p=p/2;
}
fprintf(g,"%ld",rez);
fclose(g);
return 0;
}
