Cod sursa(job #1493202)

Utilizator Vbs96Vitelaru Sebastian Vbs96 Data 28 septembrie 2015 20:50:20
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream c("lgput.in");
ofstream f("lgput.out");
long long n,p,aux;
int exp_rapida(long long n,long long p)
{
    if(p==0) return 1;
    while(p>1)
    {
        if(p%2==0){
            n=(n*n)%1999999973;
            p=p/2;}
        else
            {aux=(n*aux)%1999999973;
            p--;}
    }
    return (n*aux)%1999999973;
}
int main()
{
    c>>n>>p;
    f<<exp_rapida(n,p);
    return 0;
}