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1. Check Anagram2. Check if Substring Exists3. Count Substring Occurrences4. Extract Numbers from String5. Sum of Numbers in String6. Check if All Characters Same7. Remove Adjacent Duplicates8. Find First Non-Repeating Character9. Find Most Frequent Character10. Check String Rotation11. Longest Common Prefix12. String Compression13. Valid Parentheses Check14. Reverse Words in String

Remove Adjacent Duplicates

Remove adjacent duplicate characters.

AdvancedPhase 5 - Category 5: Advanced String LogicExample 7 of 14
remove-adjacent-duplicates.py
1# Take string input
2s = input("Enter a string: ")
3

4# Remove adjacent duplicates
5result = ""
6prev_char = None
7for char in s:
8    if char != prev_char:
9        result += char
10        prev_char = char
11

12print(f"Result: {result}")

Output

Enter a string: aabbcc
Result: abc

What's going on

Track previous character and skip duplicates.

Key Concepts:

Track previous character
Add only if different from previous
Removes adjacent duplicates

🔗Related Content

PreviousCheck if All Characters SameNextFind First Non-Repeating Character