Find the factorial of a number??

Question

#include <iostream>
using namespace std;

int main()
{
int number, i = 1, factorial = 1;

cout << "Enter a positive integer: ";
cin >> number;

while ( i <= number) {
factorial *= i;
++i;
}

cout<<"Factorial of "<< number <<" = "<< factorial;
return 0;
}

Answer 1

recursion could be a better option here.

#include <iostream.h>
int factorial(int);

void main(void) {
int number;
cout << "Please enter a positive integer: ";
cin >> number;
if (number < 0)
cout << "That is not a positive integer.\n";
else
cout << number << " factorial is: " << factorial(number) << endl;

}

int factorial(int number) {
int temp;

if(number <= 1)
return 1;

temp = number * factorial(number - 1);
return temp;

}

Answer 2

Factorial in C#:

https://code.sololearn.com/cAel33uasoLl/?ref=app

Answer 3

# Using Python

https://code.sololearn.com/cM4VQXlTNKYF/?ref=app

Answer 4

# Using Python

https://code.sololearn.com/cM4VQXlTNKYF/?ref=app