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Sandbox Obligatory factorial challenge

posted 2y ago by user‭  ·  edited 2y ago by user‭

#4: Post edited by user avatar user‭ · 2021-08-07T18:17:37Z (over 2 years ago)
  • It looks like we don't have a simple factorial challenge yet, so here's one.
  • # Task
  • Given a non-negative number, output the factorial of that number ($n!$). The factorial of a number can be defined as such:
  • $$f(0)=1$$
  • $$f(n)=n \times f(n-1)$$
  • # Test cases
  • ```
  • Input! = Output
  • 0! = 1
  • 1! = 1
  • 2! = 2
  • 3! = 6
  • 4! = 24
  • 5! = 120
  • 6! = 720
  • 10! = 3628800
  • ```
  • # Rules
  • - The [default rules](https://codegolf.codidact.com/posts/282784) for input and output apply.
  • - This is [code-golf], so the shortest code in bytes wins!
  • It looks like we don't have a simple factorial challenge yet, so here's one.
  • # Task
  • Given a non-negative number, output the factorial of that number ($n!$). The factorial of a number can be defined as such:
  • $$f(0)=1$$
  • $$f(n)=n \times f(n-1)$$
  • # Test cases
  • ```
  • Input! = Output
  • 0! = 1
  • 1! = 1
  • 2! = 2
  • 3! = 6
  • 4! = 24
  • 5! = 120
  • 6! = 720
  • 10! = 3628800
  • ```
  • # Rules
  • - The [default rules](https://codegolf.codidact.com/posts/282784) for input and output apply.
  • - This is [code-golf], so the shortest code in bytes wins!
  • - Should I delete this draft or put it on hold? Razetime has pointed out that we don't want too many challenges similar to those Somewhere Else, but I thought this'd be a good challenge for beginners.
#3: Post edited by user avatar user‭ · 2021-08-06T13:45:35Z (over 2 years ago)
#2: Post edited by user avatar user‭ · 2021-08-06T13:45:01Z (over 2 years ago)
#1: Initial revision by user avatar user‭ · 2021-08-06T13:44:39Z (over 2 years ago)
Obligatory factorial challenge
It looks like we don't have a simple factorial challenge yet, so here's one.

# Task

Given a non-negative number, output the factorial of that number ($n!$). The factorial of a number can be defined as such:

$$f(0)=1$$
$$f(n)=n \times f(n-1)$$

# Test cases

```
Input! = Output
0! = 1
1! = 1
2! = 2
3! = 6
4! = 24
5! = 120
6! = 720
10! = 3628800
```

# Rules
- The [default rules](https://codegolf.codidact.com/posts/282784) for input and output apply.
- This is [code-golf], so the shortest code in bytes wins!