Cod sursa(job #2084800)

Utilizator Andrei.GheorgheAndrei Gheorghe Andrei.Gheorghe Data 9 decembrie 2017 11:59:43
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
unsigned long long a,b,p;
int main()
{
    ifstream cin("lgput.in");
    ofstream cout("lgput.out");
    cin>>a>>b;
    p=1;
    while(b!=0)
    {
        if(b&1)
        {
            p=(p*a)%1999999973;
        }
        b=b>>1;
        a=(a*a)%1999999973;
    }
    cout<<p;
}