Cod sursa(job #1966756)

Utilizator patrutoiuandreipatrutoiu andrei patrutoiuandrei Data 15 aprilie 2017 15:52:46
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>

#define MOD 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int main()
{
    long long a,b,sol=1;
    fin>>a>>b;
    for(int i=1;i<=b;i<<=1)
    {
        if(i&b)
            sol = sol*a%MOD;
        a = a*a%MOD;
    }
    fout<<sol;
    return 0;
}