LeetCode

* indicates that I could not solve the problem.
# indicates that I did not write the most optimal solution.
+ indicates that I found the optimal solution, but I want to review this problem again.
? indicates that there is no reference solution.

Challenges

ID	Name	Q	A
202008W3D5	Numbers With Same Consecutive Differences	Q	A
202008W2D7	Longest Palindrome	Q	A
202007W4D7	Task Scheduler	Q	A
202007W4D6*	Construct Binary Tree from Inorder and Postorder Traversal	Q	A
202007W4D5#	Add Digits	Q	A
202007W4D4#	Find Minimum in Rotated Sorted Array II	Q	A
202007W4D3#	All Paths From Source to Target	Q	A
202007W4D2#	Single Number III	Q	A
202007W4D1	Binary Tree Zigzag Level Order Traversal	Q	A
202007W3D7	Word Search	Q	A
202007W3D6	Remove Linked List Elements	Q	A
202007W3D5	Add Binary	Q	A
202007W3D4	Course Schedule II	Q	A
202007W3D3	Top K Frequent Elements	Q	A
202007W3D2	Pow(x, n)	Q	A
202007W3D1	Reverse Words in a String	Q	A
202007W2D7	Angle Between Hands of a Clock	Q	A
202007W2D6	Same Tree	Q	A
202007W2D5	Reverse Bits	Q	A
202007W2D4	Subsets	Q	A
202007W2D3	Flatten a Multilevel Doubly Linked List	Q	A
202007W2D2	Maximum Width of Binary Tree	Q	A
202007W2D1*	3Sum	Q	A
202007W1D7#	Island Perimeter	Q	A
202007W1D6	Plus One	Q	A
202007W1D5#	Hamming Distance	Q	A
202007W1D4#	Ugly Number II	Q	A
202007W1D3+	Prison Cells After N Days	Q	A
202007W1D2+	Binary Tree Level Order Traversal II	Q	A
202007W1D1#	Arranging Coins	Q	A

Algorithms

ID	Name	Difficulty	Q	A
973	K Closest Points to Origin	Medium	Q	A1 A2
953	Verifying an Alien Dictionary	Easy	Q	A
929	Unique Email Addresses	Easy	Q	A
621+	Task Scheduler	Medium	Q	A
412	Fizz Buzz	Easy	Q	A
394	Decode String	Medium	Q	A
344	Reverse String	Easy	Q	A
301	Removed Invalid Parentheses	Hard	Q	A1 A2
289*	Game of Life	Medium	Q	A1 A2
283	Move Zeroes	Easy	Q	A
273	Integer to English Words	Hard	Q	A
268+	Missing Number	Easy	Q	A
253	Meeting Rooms II	Medium	Q	A
238*	Product of Array Except Self	Medium	Q	A1 A2
234	Palindrome Linked List	Easy	Q	A1 A2
215+	Kth Largest Element in an Array	Medium	Q	A
206	Reverse Linked List	Easy	Q	A1 A2
200	Number of Islands	Medium	Q	A
146	LRU Cache	Medium	Q	A
139*	Word Break	Medium	Q	A
136	Single Number	Easy	Q	A
125	Valid Palindrome	Easy	Q	A
121	Best Time to Buy and Sell Stock	Medium	Q	A
88	Merge Sorted Array	Easy	Q	A1 A2 A3
85	Maximal Rectangle	Hard	Q	A
83	Remove Duplicates from Sorted List	Easy	Q	A
79	Word Search	Medium	Q	A
78*	Subsets	Medium	Q	A
69	Sqrt(x)	Easy	Q	A1 A2 A3
67	Add Binary	Easy	Q	A
56	Merge Intervals	Medium	Q	A1 A2
49*	Group Anagrams	Medium	Q	A1 A2 A3
43	Multiply Strings	Medium	Q	A
39	Combination Sum	Medium	Q	A
38	Count and Say	Medium	Q	A
36	Valid Sudoku	Medium	Q	A
35	Search Insert Position	Easy	Q	A
34	Find First and Last Position of Element in Sorted Array	Medium	Q	A
33	Search in Rotated Sorted Array	Medium	Q	A
32*	Longest Valid Parentheses	Hard	Q	A
31	Next Permutation	Medium	Q	A
29	Divide Two Integers	Medium	Q	A
28	Implement strStr()	Easy	Q	A
27	Remove Element	Easy	Q	A
26	Remove Duplicates from Sorted Array	Easy	Q	A
25	Reverse Nodes in k-Group	Hard	Q	A
24	Swap Nodes in Pairs	Medium	Q	A
23+	Merge k Sorted Lists	Hard	Q	A1 A2
22	Generate Parentheses	Medium	Q	A1 A2
21	Merge Two Sorted Lists	Easy	Q	A
20	Valid Parentheses	Easy	Q	A
19	Remove Nth Node From End of List	Medium	Q	A1 A2
18*	4Sum	Medium	Q	A
17	Letter Combinations of a Phone Number	Medium	Q	A
16	3Sum Closest	Medium	Q	A
15*	3Sum	Easy	Q	A
14	Longest Common Prefix	Easy	Q	A
13	Roman to Integer	Medium	Q	A
12	Integer to Roman	Medium	Q	A
11*	Container with Most Water	Medium	Q	A
10	Regular Expression Matching	Hard	Q	A
9	Palindrome Number	Easy	Q	A1 A2
8	String to Integer (atoi)	Medium	Q	A
7	Reverse Integer	Easy	Q	A
6	ZigZag Conversion	Medium	Q	A
5	Longest Palindromic Substring	Medium	Q	A
3	Longest Substring Without Repeating Characters	Medium	Q	A
2	Add Two Numbers	Medium	Q	A
1	Two Sum	Easy	Q	A1 A2 A3

seungjaeryanlee / leetcode Goto Github PK

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