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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

Count Vowels & Consonants Recursively

Count vowels and consonants recursively.

AdvancedPhase 3 - Level 4: String-based RecursionExample 9 of 10
count-vowels-consonants-recursively.py
1def count_vc(s, index=0, vowels=0, consonants=0):
2    # Base case
3    if index >= len(s):
4        return vowels, consonants
5    
6    # Check current character
7    char = s[index].lower()
8    if char.isalpha():
9        if char in 'aeiou':
10            vowels += 1
11        else:
12            consonants += 1
13    
14    # Recurse
15    return count_vc(s, index + 1, vowels, consonants)
16

17# Test
18text = input("Enter a string: ")
19v, c = count_vc(text)
20print(f"Vowels: {v}, Consonants: {c}")

Output

Enter a string: Hello
Vowels: 2, Consonants: 3

What's going on

Track vowels and consonants with parameters.

Key Concepts:

Use accumulator parameters
Check if character is vowel or consonant
Update counts and recurse

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