Cod sursa(job #1965372)

Utilizator racheriunicolaechowchow racheriunicolae Data 14 aprilie 2017 12:40:23
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.38 kb
#include <fstream>
#define MOD 1999999973
#define ll long long
using namespace std;
ll p(ll a , ll b)
{
    if(b==0)return 1;
    if(b%2==1)return ((a%MOD)*(p(a,b-1)%MOD))%MOD;
    else return ((p(a,b/2)%MOD)*(p(a,b/2)%MOD))%MOD;
}
long long a,b;
int main()
{
    ifstream fin ("lgput.in");
    ofstream fout("lgput.out");
    fin>>a>>b;
    fout<<p(a,b);
    return 0;
}