Cod sursa(job #1082116)

Utilizator margikiMargeloiu Andrei margiki Data 14 ianuarie 2014 10:37:55
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.38 kb
# include <fstream>
# define MOD 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int a,p,n;
int main ()
{
    f>>a>>n;
    p=1;
    while(n>0)
    {
        if(n%2==1)
        {
            p=p*a;
            --n;
        }
        else
        {
            a=a*a;
            n=n/2;
        }
    }
    g<<p<<"\n";
    return 0;
}