Applications of DFS

I have made a playlist with videos of DFS and it’s applications. Right now I have made 3 videos and soon I will be adding more videos as well as problems which use any applications of DFS, in a way which is efficient for competitive programming.
Link
UPD: Added one more video
Thank You!

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That title is the most useless thing I have ever seen. You use DFS to iterate a graph in graph problems. What you do while dfsing is different for every problem. What’s the point? There’s only 1 application to DFS.

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Yeah but those are applications of DFS only.
Finding a cycle,finding level etc all these require DFS…I don’t understand what you mean.
Should I change the title ?Delete the post?
Tell me and I will oblige.
Thank You.