LeetCode 151: Reverse Words in a String | Python Solution | String Manipulation

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🔄 In this problem, we reverse the order of words in a string while removing extra spaces. #stringmanipulation #pythonsolution #codinginterview

⏱️ **Time Complexity:** O(n) where n is the length of the input string
🧮 **Space Complexity:** O(n) for storing the final result

## Timestamps
00:00 - Understanding problem statement
00:50 - Using String Manipulation
01:57 - Big O notation explained
02:16 - Python solution walk-through
02:38 - Solution analysis - runtime + memory

## Key Concepts
• String manipulation
• String splitting and joining
• Handling whitespace characters
• In-place reversal techniques
• Python's built-in string methods

## Learning Points
📌 Efficiently handling strings in Python
📌 Techniques for processing and cleaning input strings
📌 Different approaches to reverse word order
📌 When to use built-in functions vs. custom implementations

## Related Problems
• LeetCode 186: Reverse Words in a String II
• LeetCode 557: Reverse Words in a String III
• LeetCode 344: Reverse String
• LeetCode 541: Reverse String II

## Target Audience
This video is for software engineers preparing for coding interviews with a focus on string manipulation problems, as well as Python developers looking to improve their string handling skills.

## Prerequisites
• Basic Python syntax and string operations
• Understanding of time and space complexity
• Familiarity with array/string manipulation concepts

## Links

## Additional Tips
💡 Pay close attention to the handling of leading, trailing, and multiple spaces
💡 Compare the efficiency of using built-in Python functions versus manual implementation
💡 Discuss how this problem might be solved in other languages where string manipulation is less convenient

## Call to Action
If you found this solution helpful, please hit that subscribe button and turn on notifications to get more LeetCode solutions! Share your approach or ask questions in the comments below. #pythontutorial #leetcode #codinginterview
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