LeetCode 165: Compare Version Numbers | Java Solution | Two-Pointer Approach

📌 **Compare Version Numbers** problem requires us to compare two version strings and determine their relationship. #leetcode #versioncomparison #javacode #codinginterview ⏱️ **Time Complexity**: O(N+M) where N and M are the lengths of the version strings 🔍 **Space Complexity**: O(N+M) for the split arrays ## TIMESTAMPS 00:00 - Understanding problem statement 01:00 - Two pointers approach 01:36 - Dry run 02:28 - Big O Notation calculated 03:06 - Java code walk-through 04:17 - Solution analysis - runtime + memory 04:24 - Conclusion ## KEY CONCEPTS - String Parsing - Two-Pointer Technique - Version Number Comparison - String Splitting - Integer Parsing ## LEARNING POINTS - How to efficiently parse version numbers - Handling numeric comparisons between version segments - Managing leading zeros in version numbers - Implementing proper comparison logic for versioning systems ## RELATED PROBLEMS - LeetCode 161: One Edit Distance - LeetCode 1062: Longest Repeating Substring - LeetCode 227: Basic Calculator II - LeetCode 8: String to Integer (atoi) ## TARGET AUDIENCE This video is for software engineers preparing for technical interviews, especially those focusing on string manipulation problems in Java. ## PREREQUISITES - Basic Java knowledge - Understanding of string operations - Familiarity with parsing techniques ## RESOURCES 🔗 - LeetCode problem: https://leetcode.com/problems/compare-version-numbers/ - Solution code: https://leetcode.com/problems/compare-version-numbers/solutions/7219178/string-comparison-solution-in-java-with-tud9j ## ADDITIONAL TIPS 💡 - Pay special attention to handling the trailing zeros in version numbers - Consider using built-in split() function versus manual parsing tradeoffs - Watch for integer overflow when parsing large version numbers ## CALL TO ACTION If you found this solution helpful, please hit that like button and subscribe for more coding interview prep content! Share your alternative approaches or questions in the comments below. #javainterviewprep #leetcodesolutions #algorithnmtuorials