Cod sursa(job #1372059)

Utilizator raduzxstefanescu radu raduzx Data 4 martie 2015 11:13:13
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.5 kb
#include <fstream>

using namespace std;
unsigned  long long  int m=1999999973;
unsigned long long int lgput(unsigned long long int a,unsigned long long int b)
{
    if(b==0) return 1;
    else
        if(b%2==0)
        {
            return lgput(a*a,b/2)%m;
        }
        else
            return a*lgput(a*a,(b-1)/2)%m;
}
int main()
{
    ifstream f("lgput.in");
    ofstream g("lgput.out");
    unsigned long long int  n,p,e;
    f>>n;
    f>>p;

    g<<lgput(n,p);
    return 0;
}