Cod sursa(job #1897014)

Utilizator GeorgeCalinPetruta George-Calin GeorgeCalin Data 1 martie 2017 08:58:50
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include <cstdio>
#include <fstream>
#define f stdin
#define g stdout
#define mod 1999999997
using namespace std;

ifstream fin("lgput.in");
ofstream fout("lgput.out");

int main()
{
    long long sol=1,a;
    int n,p;
    freopen("lgput.in","r",f);
    freopen("lgput.out","w",g);
    fin>>n>>p;
    a=n;
    while(p)
    {
        if(p%2==1)
        {
            sol=(sol*a)%mod;
        }
        a=(a*a)%mod;
        p/=2;
    }
    fout<<sol;
    return 0;
}