Cod sursa(job #1571456)

Utilizator sebyvsCarp Sebastian sebyvs Data 18 ianuarie 2016 09:32:00
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include <fstream>
#define Mod 1999999973
using namespace std;

long long Ridicare(long long n, long long p)
{
    if(p == 0) return 1;
    else if(p == 1) return n;
    else if(p % 2 == 0) return Ridicare(n * n, p / 2);
    return Ridicare(n * n, (p - 1) / 2);
}

int main()
{
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    int n, p;
    fin >> n >> p;
    fout << Ridicare(n, p);
    fin.close();
    fout.close();
    return 0;
}