Cod sursa(job #1390140)

Utilizator mihai1996Toader Mihai mihai1996 Data 16 martie 2015 21:26:06
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include <fstream>
#define rest 1999999973;
using namespace std;

ifstream f("lgput.in");
ofstream g("lgput.out");

int n,p,sol;
int main()
{
    f>>n>>p;
    sol=1;
    while(p>0){
        if(p%2==0)
            n=(n*n)%rest
                else
                {
                    sol=(sol*n)%rest;
                    n=(n*n)%rest;
                }
        p=(int)(p/2);
    }
    g<<sol<<"\n";
    f.close();
    g.close();
    return 0;
}