Cod sursa(job #2089569)

Utilizator xXoctavianXxStanescu Matei Octavian xXoctavianXx Data 16 decembrie 2017 18:56:49
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator c Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <stdio.h>
#include <math.h>
int a,n,p=1;
int main()
{
    FILE* si=fopen("lgput.in","r");
    FILE* so=fopen("lgput.out","w");
    fscanf(si,"%i%i",&a,&n);
    for(;n>0;)
    {
        if(n%2==1) p=p*a;
        a=a*a;
        n=n/2;
    }
    fprintf(so,"%i",p);
    fclose(si);
    fclose(so);
    return 0;
}