Cod sursa(job #1345029)
Utilizator | Data | 17 februarie 2015 10:35:26 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.3 kb |
#include <stdio.h>
#define p 1999999973
int main(){
unsigned long a,b,c=1;
FILE*f=fopen("lgput.in","r");
fscanf(f,"%ld %ld",&a,&b);
fclose(f);
while(b){
if(b&1){
b--;
c*=a;
}
b>>=1;
a*=a;
}
FILE*g=fopen("lgput.out","w");
fprintf(g,"%ld",c);
fclose(g);
return 0;
}