演算法 Algorithm

1. two pointers

2. binary search

 binary tree & divide and conquer

3. backtracking / DFS / recursion               BFS / union find

    dynamic programming

    greedy

4. sort / toplogical sort

5. math

    bit manipulation

    design

    brainteaser

    minimax

    random

    rejection sampling

    reservoir sampling

    memoization

資料結構 Data Structure

1. string

2. hash table

3. linked list

4. stack / queue / map / heap

5. tree / binary search tree / binary indexed tree / segment tree

6. trie

7. graph

8. geometry