Cod sursa(job #1344993)
Utilizator | Data | 17 februarie 2015 10:14:38 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include <stdio.h>
#define p 1999999973
unsigned long a,b;
inline unsigned long powtt(){
if(!a)
return 0;
if(!b)
return 1;
if(b==1)
return a%p;
a%=p;
if(b%2==0)
return powtt(a,b/2)*powtt(a,b/2);
return powtt(a,b-1)*a;
}
int main(){
FILE*f=fopen("lgput.in","r");
fscanf(f,"%ld %ld",&a,&b);
fclose(f);
FILE*g=fopen("lgput.out","w");
fprintf(g,"%ld",powtt();
fclose(g);
return 0;
}