Cod sursa(job #1634441)

Utilizator Marius7122FMI Ciltea Marian Marius7122 Data 6 martie 2016 13:55:18
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <stdio.h>
#define mod 1999999973
long p(long x,long n)
{
    long a=1;
    while(n!=0)
    {
        if(n%2==1)
            a=(a*x)%mod;
        x=(x*x)%mod;
        n/=2;
    }
    return a%mod;
}
long x,n;
int main()
{
    FILE*f1,*f2;
    f1=fopen("lgput.in","r");
    f2=fopen("lgput.out","w");
    fscanf(f1,"%ld%ld",&x,&n);
    fprintf(f2,"%ld",p(x,n));
    return 0;
}