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Neetcode

https://neetcode.io/

Arrays & Hashing

217. Contains Duplicate

242. Valid Anagram

49. Group Anagrams

347. Top K Frequent Elements

238. Product of Array Except Self

36. Valid Sudoku

128. Longest Consecutive Sequence

Two Pointers

125. Valid Palindrome

167. Two Sum II - Input Array Is Sorted

11. Container With Most Water

42. Trapping Rain Water

Sliding window

Stack

20. Valid Parentheses

739. Daily Temperatures

Binary Search

704. Binary Search

Linked List

Trees

Tries

Heap/Priority Queue

Backtracking

Graphs

Advanced Graphs

1-D DP

2-D DP

Greedy

Intervals

Math & Geometry

Bit Manipulation