Cod sursa(job #857108)

Utilizator mmc170597Marin Mihnea Cristian mmc170597 Data 17 ianuarie 2013 12:05:42
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int main()
{
    int p,a,n,r;
    in>>n>>a;
    p=1;
    while(n!=0){
        if(n%2 !=0){
            p=(int)((long long)p*a%r);
            }
        a=a*a;
        n=n/2;}
    out<<p;

    return 0;
}