LeetCode 97: Interleaving String | CSharp Solution | Dynamic Programming

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YouTube Excerpt: In this video, I tackle the interleaving string problem where we need to determine if a third string can be formed by interleaving the first two strings #dynamicprogramming #codinginterview #leetcode #csharp ⏱️ **Time Complexity**: O(m*n) where m and n are the lengths of the two input strings 💾 **Space Complexity**: O(m*n) for our DP table ## ⏰ Timeline 00:00 - Understanding problem statement 01:05 - Brute force - using two pointers 03:21 - Brute force - dry run 04:17 - Brute Force - Big O Notation 04:56 - Using Dynamic Programming 06:09 - Big O Notation calculated 07:01 - C# code walk-through 08:27 - Solution analysis - runtime + memory 08:34 - Conclusion ## 🔑 Key Concepts - Dynamic Programming with 2D DP table - String manipulation and comparison - Bottom-up vs Top-down DP approaches - State transitions in string problems ## 📚 Learning Points - How to recognize and solve interleaving problems with DP - Efficient state tracking for string combinations - Converting recursive solutions to iterative DP - Optimizing space complexity for string-based DP ## 🔗 Related Problems - LeetCode 44: Wildcard Matching - LeetCode 10: Regular Expression Matching - LeetCode 115: Distinct Subsequences - LeetCode 72: Edit Distance ## 👥 Target Audience This video is for intermediate programmers preparing for coding interviews, particularly those focusing on dynamic programming string problems. ## 📋 Prerequisites - Basic understanding of dynamic programming concepts - Familiarity with C# syntax - Understanding of string operations ## 🔗 Links - Problem Statement: https://leetcode.com/problems/interleaving-string/ - Solution Code: https://leetcode.com/problems/interleaving-string/solutions/7174117/dynamic-programming-solution-in-c-with-v-e437 ## 💡 Additional Tips - Pay special attention to the base cases in the DP solution - Remember that interleaving maintains the relative order of characters - Consider the space optimization technique to reduce from O(m*n) to O(min(m,n)) ## 🙏 Call to Action If you found this video helpful, please hit that like button and subscribe for more coding interview preparation content! Share your questions or alternative solutions in the comments below. #codinginterviews #dynamicprogramming #csharp #leetcode

In this video, I tackle the interleaving string problem where we need to determine if a third string can be formed by interleaving the first two...

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