Let Code Table of Contents Starting from Zero

Overview

It seems that coding tests are conducted overseas in interviews with engineers, and in many cases, the main thing is to implement specific functions and classes according to the theme.

As a countermeasure, it seems that a site called Let Code will take measures.

A site that trains algorithmic power that can withstand coding tests that are often done in the home.

I think it's better to have the algorithm power of a human being, so I'll solve the problem irregularly and write down the method I thought at that time as a memo.

I'm solving it with Python3.

Link Collection

Keeping this article in stock will notify you when new articles are added.

If you want to see only the code, click here See Github.

The number is the link to the Leet Code problem, and the problem link is the link to the commentary article.

I would appreciate it if you could comment on any links that are incorrect.

Day	number	problem	difficulty
1	1389	CreateTargetArrayintheGivenOrder	Easy
2	1108	DefanginganIPAddress	Easy
3	1313	DecompressRun-LengthEncodedList	Easy
4	938	RangeSumofBST	Easy
5	1266	MinimumTimeVisitingAllPoints	Easy
6	1342	NumberofStepstoReduceaNumbertoZero	Easy
7	104	MaximumDepthofBinaryTree	Easy
8	1302	DeepestLeavesSum	Medium
9	701	InsertintoaBinarySearchTree	Medium
10	1431	KidsWiththeGreatestNumberofCandies	Easy
11	1315	SumofNodeswithEven-ValuedGrandparent	Medium
12	617	MergeTwoBinaryTrees	Easy
13	338	CountingBits	Medium
14	136	SingleNumber	Easy
15	283	MoveZeroes	Easy
16	344	ReverseString	Easy
17	169	MajorityElement	Easy
18	53	MaximumSubarray	Easy
19	121	BestTimetoBuyandSellStock	Easy
20	134	GasStation	Medium
21	448	FindAllNumbersDisappearedinanArray	Easy
22	141	LinkedListCycle	Easy
23	226	InvertBinaryTree	Easy
24	21	MergeTwoSortedLists	Easy
25	70	ClimbingStairs	Easy
26	94	BinaryTreeInorderTraversal	Easy
27	101	SymmetricTree	Easy
28	198	HouseRobber	Easy
29	46	Permutations	Medium
30	234	PalindromeLinkedList	Easy
31	581	ShortestUnsortedContinuousSubarray	Easy
32	437	PathSumIII	Easy
33	1	TwoSum	Easy
34	118	Pascal'sTriangle	Easy
35	160	IntersectionofTwoLinkedLists	Easy
36	155	MinStack	Easy
37	105	ConstructBinaryTreefromPreorderandInorderTraversal	Medium
38	208	ImplementTrie(PrefixTree)	Medium
39	494	TargetSum	Medium
40	114	FlattenBinaryTreetoLinkedList	Medium
41	394	DecodeString	Medium
42	2	AddTwoNumbers	Medium
43	5	LongestPalindromicSubstring	Medium
44	543	DiameterofBinaryTree	Easy
45	1379	FindaCorrespondingNodeofaBinaryTreeinaCloneofThatTree	Medium
46	406	QueueReconstructionbyHeight	Medium

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