Скачать или смотреть LeetCode 433: Minimum Genetic Mutation | CSharp Solution | BFS Graph Traversal

🧬 Problem Overview
In this problem, we need to find the minimum number of mutations required to convert a start gene string to an end gene string, where each mutation must result in a valid gene string from the given bank. #leetcode #graphtraversal #bfs #csharp

⏱️ **Time Complexity**: O(L * N), where L is the length of the gene string and N is the size of the bank
🗃️ **Space Complexity**: O(N), where N is the size of the bank

⏰ Timestamps
00:00 - Understanding problem statement
02:56 - Optimized solution
05:05 - Dry run
06:57 - Big O Notation calculated
07:56 - C# code walk-through
09:45 - Solution analysis - runtime + memory
09:53 - Conclusion

🔑 Key Concepts
Breadth-First Search (BFS)
Graph representation of mutations
String manipulation
Queue-based traversal
Visited set tracking

📚 Learning Points
How to model string mutation problems as graph traversal
Efficient BFS implementation in CSharp
Optimizing string comparisons
Managing visited nodes to avoid cycles
Handling edge cases like unreachable targets

🔗 Related LeetCode Problems
LeetCode 127: Word Ladder (similar mutation concept)
LeetCode 752: Open the Lock (BFS with state changes)
LeetCode 1091: Shortest Path in Binary Matrix (BFS pathfinding)
LeetCode 139: Word Break (string transformation)

👥 Target Audience
This video is for intermediate programmers preparing for coding interviews who are familiar with C# and want to deepen their understanding of graph traversal algorithms.

📋 Prerequisites
Basic knowledge of C# programming
Understanding of queues and sets
Familiarity with graph concepts
Basic knowledge of breadth-first search

🔗 Links
LeetCode problem: https://leetcode.com/problems/minimum...
Solution code: https://leetcode.com/problems/minimum...

💡 Additional Tips
Pay special attention to how we validate valid mutations using a dictionary for O(1) lookups
This problem has parallels to the famous "word ladder" problem - similar techniques can be applied
Remember to consider the case where no valid mutation path exists

🔔 Call to Action
If you found this solution helpful, please subscribe to support more content like this! Share your approach and questions in the comments below, and let me know what LeetCode problems you'd like me to cover next. #codinginterviews #algorithms #graphtraversal