Factorials
Implement a function factorial(n) that would return the factorial of the number n:
The input contains a single integer n.
The output should contain 4 numbers - n!, (2n)!, (n-1)!, (n+1)! each on a separate line.
Input | Output |
|---|---|
5 | 120 3628800 24 720 |
Tip
Call the factorial() function 4 times; each time passing the new value that should be printed.
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB