Cod sursa(job #2562750)

Utilizator RedPipperNastasa Stefan-Alexandru RedPipper Data 29 februarie 2020 17:47:48
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
#define MOD 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");

long long a, exp;

int main()
{
    fin>>a>>exp;
    int sol=1;
    for(int i=0;(1<<i) <=exp;++i)
    {
        if(((1<<i)&exp)>0)
            sol = (a*sol)%MOD;

        a=(a*a)%MOD;
    }
    fout<<sol;
    return 0;
}