Watch tutorials and explanations by expert teachers that walk through solving this problem.
Kevin Naughton Jr.
Greg Hogg
Amell Peralta
Coding Blocks
Cracking FAANG
Vivek Sharma
Tech Traversal
AlgoJS
Solve more problems to master this pattern
![Coding Interview Tutorial 123 - Walls and Gates [LeetCode]](https://i.ytimg.com/vi/wCTbLn6QgTE/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLBMr-bfxRyHeIgczJrKy7YcwYyWHQ)
