Cod sursa(job #1182413)

Utilizator petiVass Peter peti Data 6 mai 2014 12:48:56
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.42 kb
#include <fstream>
using namespace std;

int main(){
    ifstream ifs("lgput.in");
    ofstream ofs("lgput.out");
    long long int x,n;ifs>>x>>n; // x^n
    long long int a=1;
    while(n!=0){
        if(n%2){
            a=(a*x)%1999999973;
            x=(x*x)%1999999973;
            n>>=1;
        }
        else{
            x=(x*x)%1999999973;
            n>>=1;
        }
    }
    ofs<<a%1999999973;
}