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Python Data Structures and Algorithms - Recursion: Factorial of a non-negative integer

Python Recursion: Exercise-4 with Solution

Write a Python program to get the factorial of a non-negative integer.

Sample Solution:

Python Code:

def factorial(n):
  if n <= 1:
    return 1
  else:
    return n * (factorial(n - 1))
    
print(factorial(5))

Sample Output:

120

Flowchart:

Flowchart: Recursion: Factorial of a non-negative integer.

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Python: Tips of the Day

Decapitalizes the first letter of a string:

Example:

def tips_decapitalize(s, upper_rest=False):
  return s[:1].lower() + (s[1:].upper() if upper_rest else s[1:])
print(tips_decapitalize('PythonTips'))
print(tips_decapitalize('PythonTips', True)) 

Output:

pythonTips
pYTHONTIPS