Cod sursa(job #2726138)

Utilizator severutBogdan Sever-Cristian severut Data 20 martie 2021 13:47:18
Problema Ridicare la putere in timp logaritmic Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.46 kb
#include <iostream>
#include <fstream>

using namespace std;

ifstream in("lgput.in");
ofstream out("lgput.out");
long long const modulo=1999999973;
long long n,p;
long long lgput(long long n,long long p)
{
    long long rezultat=1;
    for(int i=0;(1<<i)<=n;++i){
        if(p & (1<<i))
            rezultat=(rezultat*n)%modulo;
        n=(n*n)%modulo;
    }
    return rezultat;
}
int main()
{
    in>>n>>p;
    out<<lgput(n,p);
    return 0;
}