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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 9: Recursion 3
  5. Discussions

Day 9: Recursion 3

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  • RISHAV_SHARMA
     + 22 comments

    Use Function name as "factorial" rather to use any other like f or fact.

    After that your all testcase will be pass.

  • n_okroshiashvili
     + 13 comments

    In Python 3.

    We know that factorial of 1 and 0 is 1, after that we have what we have

    def factorial(n):
    if n <= 1:
        return 1
    else:
        result = n * factorial(n - 1)
        return result

  • vikasgothwal0
     + 4 comments
    factorial = lambda x : 1 if x<=1 else x*factorial(x-1)
print(factorial(int(input())))

  • aleksandrhovhan1
     + 6 comments

    Here's my simple solution in Java:

    import java.util.*;

public class Solution 
{

    public static void main(String[] args) 
    {
        Scanner scan = new Scanner(System.in);
        System.out.println( factorial(scan.nextInt()) );
    }
        
    public static long factorial( int n )
    {
        return (n == 1) ? 1 : n*factorial(n-1) ;
    }
}

  • michal_skvor
     + 11 comments

    The computed values is printed properly, the function has the name factorial and it fails with this message:

    Traceback (most recent call last):
  File "/custom-E0P65VURzzcASfYoaTsm/solution.py", line 69, in <module>
    data["signals"] = map( int, open( "signal00.sig" ).read().strip().split() )
IOError: [Errno 2] No such file or directory: 'signal00.sig'

    What is wrong?

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