Cod sursa(job #2936065)

Utilizator Samoila_AlexandruSamoilaAlexandru Samoila_Alexandru Data 7 noiembrie 2022 23:07:19
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.43 kb
#include <fstream>
#define mod 1999999973

using namespace std;

ifstream fin("lgput.in");
ofstream fout("lgput.out");

long long putere(int a, int b)
{
    long long p=1;
    for(int k=1; k<=b; k<<=1)
    {
        if((b&k))
            p=p*a%mod;
        a=a*a%mod;
    }
    return p;
}

int n, p;

int main()
{
    fin>>n>>p;
    fin.close();

    fout<<putere(n, p);

    fout.close();
    return 0;
}