Cod sursa(job #2397857)

Utilizator alexandrionUNIBUC Marcu Alexandru alexandrion Data 4 aprilie 2019 20:16:21
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.49 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");

long long f(int n,long p)
{
    if(p==1)
    {
        return n;
    }
    if(p==0)
    {
        return 1;
    }
    if(p%2==0)
    {
        return (f(n,p/2)*f(n,p/2))%1999999973;
    }
    else
    {
        return ((f(n,p/2)*f(n,p/2))%1999999973 * n)%1999999973;
    }


}


int main()
{
    int n;
    long p;
    fin>>n>>p;
    fout<<f(n,p);
}