Cod sursa(job #1373558)

Utilizator vdorastieNegru Vlad vdorastie Data 4 martie 2015 19:30:27
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include <iostream>
#include <fstream>
using namespace std;
int long long a, n, l, k=1999999973, p;
int main()
{
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    fin>>n>>p;
    a=1;
    while(p)
    {
        if(p%2==0)
        {
            n*=n;
            n%=k;
            p/=2;
        }
        else
        {
            a*=n;
            a%=k;
            p--;
        }
    }
    fout<<a;
    return 0;
}