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 |
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB