Cod sursa(job #1046133)

Utilizator CatalinaRaduCatalina Elena Radu CatalinaRadu Data 2 decembrie 2013 18:15:53
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include <iostream>
#include <fstream>
#include <string.h>
using namespace std;
ifstream f ("lgput.in");
ofstream g ("lgput.out");

const int n_max=10001;
const int m=1999999973;

int main()
{
    unsigned int i,n,p;
    long long a,sol=1;
    f>>n>>p;
    a=n;
    for (i=0;(1<<i)<=p;++i)
    {
        if(((1<<i)&p)>0)
           sol=(sol*a)%m;
        a=(a*a)%m;
    }
    g<<sol;
    f.close();
    g.close();
    return 0;
}