To-do list

• huahua list important stuffs [One video a day at lease]

  • Recursion Backtrack

  • Tree

  • heap

  • DFS

  • BFS

  • Djistra

  • Union find

  • DP

  • Array

  • LRU cache

  • system design

• Others

  • ML

    • pool count fish (PlusAI)

    • Andrew N basics / NYU (Zhihu collected course)

    • basics summary and find video from the YouTube Indian guy

    • Conv, BN, ReLU python forward / backward implementation

    • Math optimization