Cod sursa(job #1277241)

Utilizator Robert_EuRobert Pintilii Robert_Eu Data 27 noiembrie 2014 13:45:27
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.54 kb
#include <fstream>
#define Mod 1999999973

using namespace std;

unsigned long long a,b;

inline unsigned long long Ridicare(unsigned long long x,unsigned long long n)
{
    if(n==0)    return 1;
    else    if(n==1)    return x%Mod;
    else    if(n%2==0)  return Ridicare(x*x%Mod,(n/2))%Mod;
    return x%Mod*Ridicare(x*x%Mod,((n-1)/2))%Mod;
}

int main()
{
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    fin>>a>>b;
    fout<<Ridicare(a,b)%Mod<<"\n";
    fin.close();
    fout.close();
    return 0;
}