Cod sursa(job #2676496)

Utilizator T1raduTaerel Radu Nicolae T1radu Data 24 noiembrie 2020 14:57:13
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.36 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int a,b;
long long putere=1;
int main()
{
    fin >> a >> b;
    for(int i=0; (1<<i) <= b;i++)
    {
        if(((1<<i)&b) > 0)
            putere=(putere*a)%1999999973;
        a=(a*a)%1999999973;
    }
    fout << putere;
    return 0;
}