Cod sursa(job #3174361)

Utilizator andreigabrielAndrei Manoliu andreigabriel Data 24 noiembrie 2023 18:00:37
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.71 kb
#include <iostream>
#include <fstream>
using namespace std;

ifstream fin("lgput.in");
ofstream fout("lgput.out");
int PutereON(int A , int n)
{
    int P = 1 ;
    for(int i = 1 ; i <= n ; i ++)
        P = P * A;
    return P;
}

int PutereRec(long long int A ,long long int n)
{
    if(n == 0)
        return 1;
    if(n % 2 == 1)
        return A * PutereRec(A , n - 1);
    int P = PutereRec(A , n / 2);
    return P * P;
}

int Putere(int A , int n)
{
    int P = 1;
    for(int k = 1 ; k <= n ; k <<= 1)
    {
        if((n & k))
            P *= A;
        A = A * A;
    }
    return P;
}

int main()
{
    long long int N, P;
    fin >> N >> P;
    cout << PutereRec(N,P) % 1999999973 << endl;
    return 0;
}