Cod sursa(job #911522)

Utilizator MIonutMistreanu Ionut MIonut Data 11 martie 2013 19:14:19
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.37 kb
#include<fstream>
#define ull long long
using namespace std;
ull  a, b, c=1999999973;
ifstream f("lgput.in");
ofstream g("lgput.out");
ull putere(ull x, ull n)
{
    ull r=1;
    while(n!=0){
        if(n%2)
            r=(r*(x%c))%c;
        n/=2;
        x=((x%c)*(x%c))%c;
    }
    return r;
}
int main()
{
    f>>a>>b;
    g<<putere(a,b);
    return 0;
}