Matrix

Rotate Image: https://www.youtube.com/watch?v=SA867FvqHrM

Heaps

Last Stone Weight: https://www.youtube.com/watch?v=fBPS7PtPtaE

Graphs

Clone Graph: https://www.geeksforgeeks.org/clone-an-undirected-graph/

Num of Islands: https://www.youtube.com/watch?v=o8S2bO3pmO4

Word Search: https://www.youtube.com/watch?v=vYYNp0Jrdv0

Dynamic Programming

Climbing Stairs: https://www.youtube.com/watch?v=kulWKd3BUcI

Coin Change: https://www.youtube.com/watch?v=1R0_7HqNaW0&t=533s

Unique Paths: https://www.youtube.com/watch?v=6qMFjFC9YSc

Decode Ways: https://www.youtube.com/watch?v=cQX3yHS0cLo

Jump Game: https://www.youtube.com/watch?v=i4F5TnTLAbc

LCA BST

https://www.youtube.com/watch?v=kulWKd3BUcI

Kth Smallest BST

https://www.youtube.com/watch?v=C6r1fDKAW_o

IsValid BST

https://www.youtube.com/watch?v=MILxfAbIhrE

Level Order Tree Traversal

https://www.youtube.com/watch?v=XZnWETlZZ14

Maximum Path Sum

https://www.youtube.com/watch?v=peyO-Nu1jGc&list=PL1SEWWZW8IeN7IEMoQ8LNYqgwcXpEnWx0&index=14&t=0s

Same Tree

https://www.youtube.com/watch?v=sheA4rbbDlQ&list=PL1SEWWZW8IeN7IEMoQ8LNYqgwcXpEnWx0&index=13&t=0s

Maximum Depth in Binary Tree

https://www.youtube.com/watch?v=D2cFSDfg0So&list=PL1SEWWZW8IeN7IEMoQ8LNYqgwcXpEnWx0&index=12&t=0s

K Closest Points from Origin

https://www.youtube.com/watch?v=eaYX0Ee0Kcg

Dynamic Programming

Intro CSDOJO: https://www.youtube.com/watch?v=vYquumk4nWw

Heaps

MinHeap
https://www.youtube.com/watch?v=t0Cq6tVNRBA&t=12s

PriorityQueue Java Example:
https://www.journaldev.com/1642/java-priority-queue-priorityqueue-example

Minimum Window Substring

https://leetcode.com/problems/minimum-window-substring/

Longest Substring with Repeating Characters

https://www.youtube.com/watch?v=00FmUN1pkGE

Median in a running data stream

https://www.youtube.com/watch?v=VmogG01IjYc

https://www.youtube.com/watch?v=1CxyVdA_654

Moving Average as part of Sliding Window

https://www.youtube.com/watch?v=E-kjYOZEBxY

Merge K Sorted Lists

https://www.youtube.com/watch?v=zLcNwcR6yO4

How to sort a large file in java ?

http://www.algosome.com/articles/how-to-sort-large-file.html