Cod sursa(job #3134965)
Utilizator | Data | 1 iunie 2023 09:21:55 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | c-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.54 kb |
#include <stdio.h>
#define M 1999999973
FILE *fin = NULL, *fout = NULL;
int n , p;
int exp_log_rec(float x, int n)
{
if (n < 0)
return exp_log_rec(1.0 / x, -n);
if (n == 0)
return 1;
if (n % 2 == 0)
return (int)exp_log_rec(x * x, n / 2)%M;
else
return (int)(x * exp_log_rec(x * x, n / 2))%M;
}
int main()
{
fin = fopen("lgput.in","r");
fout = fopen("lgput.out","r");
fscanf(fin,"%d %d",&n,&p);
fprintf(fout,"%d",exp_log_rec(n,p));
fclose(fin);
fclose(fout);
return 0;
}