Cod sursa(job #947147)

Utilizator manutrutaEmanuel Truta manutruta Data 6 mai 2013 19:51:27
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.43 kb
#include <iostream>
#include <fstream>
using namespace std;

ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,x=1;
int p;

long long pow(long n, int p){
    if(p==0){
        n=x;
        return n;
    }

    if(p%2==1){
        p--;
        x=(x*n);
        return pow(n,p);
    }
    else{
        p/=2;
        n*=n;
        return pow(n,p);
    }
}

int main()
{
   f>>n>>p;
   cout<<pow(2,31);
}