dukeluo / leetcode

Just leetcode...

How to Start

TypeScript:

• Install Deno with Homebrew: brew install deno
• Run the code: deno run TypeScript/206.reverse-linked-list.ts

Racket:

• Install Racket with Homebrew: brew install minimal-racket
• Run the code: racket Racket/206.reverse-linked-list.rkt

NeetCode

Roadmap: https://neetcode.io/roadmap

#	Title	Difficulty	Solution	Category
217	Contains Duplicate	Easy	ts	Arrays & Hashing
242	Valid Anagram	Easy	ts	Arrays & Hashing
242	Two Sum	Easy	ts	Arrays & Hashing
49	Group Anagrams	Medium	ts	Arrays & Hashing
347	Top K Frequent Elements	Medium	ts	Arrays & Hashing
238	Product of Array Except Self	Medium	ts	Arrays & Hashing
36	Valid Sudoku	Medium	ts	Arrays & Hashing
659	Encode and Decode Strings	Medium	ts	Arrays & Hashing
128	Longest Consecutive Sequence	Medium	ts	Arrays & Hashing
125	Valid Palindrome	Easy	ts	Two Pointers
167	Two Sum II - Input Array Is Sorted	Medium	ts	Two Pointers
15	3Sum	Medium	ts	Two Pointers
11	Container With Most Water	Medium	ts	Two Pointers
42	Trapping Rain Water	Hard	ts	Two Pointers
20	Valid Parentheses	Easy	ts	Stack
155	Min Stack	Medium	ts	Stack
150	Evaluate Reverse Polish Notation	Medium	ts	Stack
22	Generate Parentheses	Medium	ts	Stack
739	Daily Temperatures	Medium	ts	Stack
853	Car Fleet	Medium	ts	Stack
84	Largest Rectangle in Histogram	Hard	ts	Stack
704	Binary Search	Easy	ts	Binary Search
74	Search a 2D Matrix	Medium	ts	Binary Search
875	Koko Eating Bananas	Medium	ts	Binary Search
153	Find Minimum in Rotated Sorted Array	Medium	ts	Binary Search
33	Search in Rotated Sorted Array	Medium	ts	Binary Search
981	Time Based Key-Value Store	Medium	ts	Binary Search
121	Best Time to Buy and Sell Stock	Easy	ts	Sliding Window
3	Longest Substring Without Repeating Characters	Medium	ts	Sliding Window
424	Longest Repeating Character Replacement	Medium	ts	Sliding Window
567	Permutation in String	Medium	ts	Sliding Window
206	Reverse Linked List	Easy	ts rkt	Linked List
21	Merge Two Sorted Lists	Easy	ts rkt	Linked List
143	Reorder List	Medium	ts	Linked List
19	Remove Nth Node From End of List	Medium	ts	Linked List
138	Copy List with Random Pointer	Medium	ts	Linked List
2	Add Two Numbers	Medium	ts	Linked List
141	Linked List Cycle	Easy	ts	Linked List
287	Find The Duplicate Number	Medium	ts	Linked List
146	LRU Cache	Medium	ts	Linked List
226	Invert Binary Tree	Easy	ts	Trees
104	Maximum Depth of Binary Tree	Easy	ts	Trees
543	Diameter of Binary Tree	Easy	ts	Trees
110	Balanced Binary Tree	Easy	ts	Trees
100	Same Tree	Easy	ts	Trees
572	Subtree of Another Tree	Easy	ts	Trees
235	Lowest Common Ancestor of a Binary Search Tree	Medium	ts	Trees
102	Binary Tree Level Order Traversal	Medium	ts	Trees
199	Binary Tree Right Side View	Medium	ts	Trees
1448	Count Good Nodes in Binary Tree	Medium	ts	Trees
98	Validate Binary Search Tree	Medium	ts	Trees
230	Kth Smallest Element in a BST	Medium	ts	Trees
105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	ts	Trees
46	Permutations	Medium	ts	Backtracking
78	Subsets	Medium	ts	Backtracking
39	Combination Sum	Medium	ts	Backtracking
90	Subsets II	Medium	ts	Backtracking
40	Combination Sum II	Medium	ts	Backtracking
79	Word Search	Medium	ts	Backtracking
131	Palindrome Partitioning	Medium	ts	Backtracking
17	Letter Combinations of a Phone Number	Medium	ts	Backtracking
70	Climbing Stairs	Easy	ts	1-D DP
746	Min Cost Climbing Stairs	Easy	ts	1-D DP
198	House Robber	Medium	ts	1-D DP
213	House Robber II	Medium	ts	1-D DP
5	Longest Palindromic Substring	Medium	ts	1-D DP
647	Palindromic Substrings	Medium	ts	1-D DP
91	Decode Ways	Medium	ts	1-D DP
300	Longest Increasing Subsequence	Medium	ts	1-D DP
152	Maximum Product Subarray	Medium	ts	1-D DP

Others

#	Title	Difficulty	Solution	Category
2414	Length of the Longest Alphabetical Continuous Substring	Medium	ts	Two Pointers