Cod sursa(job #265873)

Utilizator alex@ndraAlexandra alex@ndra Data 24 februarie 2009 17:53:04
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.48 kb
#include<fstream>
#include<iostream>

using namespace std;
long power(long n, long p)
{ int x;
     if(p==0) 
         return 1;
     if(p%2==0)
         return power(n, p/2)*power(n,p/2); 
     if(p%2!=0)
         return n*power(n, p-1);
         }
      
int main()
{
    long n, p, s;
    
    ifstream f("lgput.in");
      f>>n>>p;
    f.close();
   s=power(n,p);
    
    ofstream g("lgput.out");
       g<<s%1999999973;
    g.close();
    return 0;
}