Cod sursa(job #2200927)

Utilizator racheriunicolaechowchow racheriunicolae Data 2 mai 2018 21:41:26
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>
#define MOD 1999999973
using namespace std;
int n,p,k,i,a;
int main()
{
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    fin>>a>>p;
    k=1;
    for(i=1;i<=p;i*=2)
    {
        if(i&p)k=(k*a)%MOD;
        a=(a*a)%MOD;
    }
    fout<<k<<"\n";
    return 0;
}