Cod sursa(job #1506030)

Utilizator mihaitheodorMihai Theodor Iliant mihaitheodor Data 19 octombrie 2015 22:38:20
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include<cstdio>
using namespace std;
const long long N=19999999973;
long long n,p;
long long ridicare_putere(long long x, long long y)
{
    long long a=1;
    while(y!=0)
    {
        if(y%2==1)
        {
            y=y-1;
            a=(a*x)%N;
        }
        x=(x*x)%N;
        y=y/2;
    }
    return a;
}

int main()
{
    freopen("lgput.in","r",stdin);
    freopen("lgput.out","w",stdout);
    scanf("%lld %lld",&n,&p);
    printf("%lld\n",ridicare_putere(n,p));
}