bfs,dfs, tree dynamic programming and data structures tutorial link

Tree problems using dynamic programming
https://www.ideserve.co.in/learn/total-number-of-possible-binary-search-trees-with-n-keys


BFS or DFS
https://www.youtube.com/watch?v=KiCBXu4P-2Y
https://www.youtube.com/watch?v=oDqjPvD54Ss

https://www.youtube.com/watch?v=OrS7PaJ-5ck

data structures and  algorithms
https://www.youtube.com/watch?v=94ErZ5K8XZg&list=PLdo5W4Nhv31bK5n8-RIGhvYs8bJbgJFDR&index=5


dynamic programming
https://www.youtube.com/watch?v=lVR2u9lsxl8&list=PLdo5W4Nhv31aBrJE1WS4MR9LRfbmZrAQu


https://www.hackerearth.com/practice/algorithms/dynamic-programming/introduction-to-dynamic-programming-1/tutorial/