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1. Reverse String Recursively2. Check Palindrome String Recursively3. Count Vowels Recursively4. Remove Spaces Recursively5. Replace Character Recursively6. Remove Occurrences Recursively7. Print Characters Recursively8. Uppercase Conversion Recursively9. Count Vowels & Consonants Recursively10. Reverse String Words Recursively

Reverse String Recursively

Reverse a string using recursion.

AdvancedPhase 3 - Level 4: String-based RecursionExample 1 of 10
reverse-string-recursively.py
1def reverse_string(s):
2    # Base case
3    if len(s) <= 1:
4        return s
5    
6    # Recursive case
7    return reverse_string(s[1:]) + s[0]
8

9# Test
10text = input("Enter a string: ")
11result = reverse_string(text)
12print(f"Reversed: {result}")

Output

Enter a string: Hello
Reversed: olleH

What's going on

Reverse substring, then add first character.

Key Concepts:

Base case: single or empty string
Reverse substring (s[1:])
Append first character (s[0])

🔗Related Content

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