Cod sursa(job #2023221)

Utilizator alex.surdubobAlex Surdu alex.surdubob Data 18 septembrie 2017 16:27:23
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <iostream>
#include <fstream>
using namespace std;

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

long long lgput(long long x, long long p)
{
    long long n = 1;
    while(p > 0)
    {
        if(p % 2 != 0)
        {
            n *= x;
            p--;
        }
        x = x * x;
        p /= 2;
    }
    return n % 1999999973;
}

int main()
{
    long long x, p;
    fin >> x >> p;
    fout << lgput(x, p);

    return 0;
}