NeetCode All in Python, Part 2

NeetCode All holds 943 problems (211 Easy, 583 Medium, 149 Hard). Every NeetCode problem in this catalog: all of NeetCode 150 plus everything added so far from the full roadmap. Generate all of it as tested Python practice environments with one command. This collection includes every problem in NeetCode 250. Generate the whole collection into the current directory:

lcpy gen -t neetcode

#	Problem	Difficulty	Solution
271	Encode and Decode Strings	Medium	solution.py
272	Closest Binary Search Tree Value II	Hard	solution.py
273	Integer to English Words	Hard	solution.py
276	Paint Fence	Medium	solution.py
277	Find the Celebrity	Medium	solution.py
279	Perfect Squares	Medium	solution.py
280	Wiggle Sort	Medium	solution.py
281	Zigzag Iterator	Medium	solution.py
283	Move Zeroes	Easy	solution.py
286	Walls And Gates	Medium	solution.py
287	Find the Duplicate Number	Medium	solution.py
290	Word Pattern	Easy	solution.py
291	Word Pattern II	Medium	solution.py
295	Find Median from Data Stream	Hard	solution.py
296	Best Meeting Point	Hard	solution.py
297	Serialize and Deserialize Binary Tree	Hard	solution.py
298	Binary Tree Longest Consecutive Sequence	Medium	solution.py
300	Longest Increasing Subsequence	Medium	solution.py
303	Range Sum Query - Immutable	Easy	solution.py
304	Range Sum Query 2D - Immutable	Medium	solution.py
305	Number of Islands II	Hard	solution.py
308	Range Sum Query 2D - Mutable	Medium	solution.py
309	Best Time to Buy and Sell Stock with Cooldown	Medium	solution.py
310	Minimum Height Trees	Medium	solution.py
311	Sparse Matrix Multiplication	Medium	solution.py
312	Burst Balloons	Hard	solution.py
314	Binary Tree Vertical Order Traversal	Medium	solution.py
317	Shortest Distance from All Buildings	Hard	solution.py
322	Coin Change	Medium	solution.py
323	Number of Connected Components in an Undirected Graph	Medium	solution.py
329	Longest Increasing Path in a Matrix	Hard	solution.py
332	Reconstruct Itinerary	Hard	solution.py
333	Largest BST Subtree	Medium	solution.py
337	House Robber III	Medium	solution.py
338	Counting Bits	Easy	solution.py
339	Nested List Weight Sum	Medium	solution.py
340	Longest Substring with At Most K Distinct Characters	Medium	solution.py
341	Flatten Nested List Iterator	Medium	solution.py
342	Power of Four	Easy	solution.py
343	Integer Break	Medium	solution.py
344	Reverse String	Easy	solution.py
346	Moving Average from Data Stream	Easy	solution.py
347	Top K Frequent Elements	Medium	solution.py
348	Design Tic-Tac-Toe	Medium	solution.py
349	Intersection of Two Arrays	Easy	solution.py
351	Android Unlock Patterns	Medium	solution.py
352	Data Stream as Disjoint Intervals	Hard	solution.py
353	Design Snake Game	Medium	solution.py
354	Russian Doll Envelopes	Hard	solution.py
355	Design Twitter	Medium	solution.py
356	Line Reflection	Medium	solution.py
358	Rearrange String k Distance Apart	Hard	solution.py
359	Logger Rate Limiter	Easy	solution.py
360	Sort Transformed Array	Medium	solution.py
362	Design Hit Counter	Medium	solution.py
364	Nested List Weight Sum II	Medium	solution.py
366	Find Leaves of Binary Tree	Medium	solution.py
367	Valid Perfect Square	Easy	solution.py
368	Largest Divisible Subset	Medium	solution.py
369	Plus One Linked List	Medium	solution.py
371	Sum of Two Integers	Medium	solution.py
374	Guess Number Higher or Lower	Easy	solution.py
377	Combination Sum IV	Medium	solution.py
379	Design Phone Directory	Medium	solution.py
380	Insert Delete GetRandom O(1)	Medium	solution.py
383	Ransom Note	Easy	solution.py
386	Lexicographical Numbers	Medium	solution.py
387	First Unique Character in a String	Easy	solution.py
389	Find the Difference	Easy	solution.py
392	Is Subsequence	Easy	solution.py
394	Decode String	Medium	solution.py
399	Evaluate Division	Medium	solution.py
402	Remove K Digits	Medium	solution.py
407	Trapping Rain Water II	Hard	solution.py
408	Valid Word Abbreviation	Easy	solution.py
409	Longest Palindrome	Easy	solution.py
410	Split Array Largest Sum	Hard	solution.py
416	Partition Equal Subset Sum	Medium	solution.py
417	Pacific Atlantic Water Flow	Medium	solution.py
418	Sentence Screen Fitting	Medium	solution.py
422	Valid Word Square	Easy	solution.py
424	Longest Repeating Character Replacement	Medium	solution.py
426	Convert Binary Search Tree to Sorted Doubly Linked List	Medium	solution.py
427	Construct Quad Tree	Medium	solution.py
428	Serialize and Deserialize N-ary Tree	Hard	solution.py
431	Encode N-ary Tree to Binary Tree	Hard	solution.py
435	Non-overlapping Intervals	Medium	solution.py
438	Find All Anagrams in a String	Medium	solution.py
439	Ternary Expression Parser	Medium	solution.py
440	K-th Smallest in Lexicographical Order	Hard	solution.py
441	Arranging Coins	Easy	solution.py
442	Find All Duplicates in an Array	Medium	solution.py
443	String Compression	Medium	solution.py
444	Sequence Reconstruction	Medium	solution.py
445	Add Two Numbers II	Medium	solution.py
446	Arithmetic Slices II - Subsequence	Hard	solution.py
448	Find All Numbers Disappeared in an Array	Easy	solution.py
450	Delete Node in a BST	Medium	solution.py
451	Sort Characters By Frequency	Medium	solution.py
452	Minimum Number of Arrows to Burst Balloons	Medium	solution.py
455	Assign Cookies	Easy	solution.py
456	132 Pattern	Medium	solution.py
460	LFU Cache	Hard	solution.py
463	Island Perimeter	Easy	solution.py
465	Optimal Account Balancing	Hard	solution.py
471	Encode String with Shortest Length	Hard	solution.py
472	Concatenated Words	Hard	solution.py
473	Matchsticks to Square	Medium	solution.py
474	Ones and Zeroes	Medium	solution.py
484	Find Permutation	Medium	solution.py
485	Max Consecutive Ones	Easy	solution.py
487	Max Consecutive Ones II	Medium	solution.py
489	Robot Room Cleaner	Hard	solution.py
490	The Maze	Medium	solution.py
494	Target Sum	Medium	solution.py
496	Next Greater Element I	Easy	solution.py
499	The Maze III	Hard	solution.py
502	IPO	Hard	solution.py
505	The Maze II	Medium	solution.py
510	Inorder Successor in BST II	Medium	solution.py
513	Find Bottom Left Tree Value	Medium	solution.py
514	Freedom Trail	Hard	solution.py
515	Find Largest Value in Each Tree Row	Medium	solution.py
516	Longest Palindromic Subsequence	Medium	solution.py
518	Coin Change II	Medium	solution.py
523	Continuous Subarray Sum	Medium	solution.py
525	Contiguous Array	Medium	solution.py
528	Random Pick with Weight	Medium	solution.py
531	Lonely Pixel I	Medium	solution.py
535	Encode and Decode TinyURL	Medium	solution.py
538	Convert BST to Greater Tree	Medium	solution.py
539	Minimum Time Difference	Medium	solution.py
540	Single Element in a Sorted Array	Medium	solution.py
543	Diameter of Binary Tree	Easy	solution.py
545	Boundary of Binary Tree	Medium	solution.py
547	Number of Provinces	Medium	solution.py
549	Binary Tree Longest Consecutive Sequence II	Medium	solution.py
552	Student Attendance Record II	Hard	solution.py
554	Brick Wall	Medium	solution.py
555	Split Concatenated Strings	Medium	solution.py
557	Reverse Words in a String III	Easy	solution.py
560	Subarray Sum Equals K	Medium	solution.py
567	Permutation in String	Medium	solution.py
572	Subtree of Another Tree	Easy	solution.py
576	Out of Boundary Paths	Medium	solution.py
582	Kill Process	Medium	solution.py
588	Design In-Memory File System	Hard	solution.py
590	N-ary Tree Postorder Traversal	Easy	solution.py
604	Design Compressed String Iterator	Easy	solution.py
605	Can Place Flowers	Easy	solution.py
606	Construct String from Binary Tree	Medium	solution.py
616	Add Bold Tag in String	Medium	solution.py
617	Merge Two Binary Trees	Easy	solution.py
621	Task Scheduler	Medium	solution.py
622	Design Circular Queue	Medium	solution.py
624	Maximum Distance in Arrays	Medium	solution.py
625	Minimum Factorization	Medium	solution.py
629	K Inverse Pairs Array	Hard	solution.py
631	Design Excel Sum Formula	Hard	solution.py
632	Smallest Range Covering Elements from K Lists	Hard	solution.py
633	Sum of Square Numbers	Medium	solution.py
635	Design Log Storage System	Medium	solution.py
642	Design Search Autocomplete System	Hard	solution.py
644	Maximum Average Subarray II	Hard	solution.py
645	Set Mismatch	Easy	solution.py
646	Maximum Length of Pair Chain	Medium	solution.py
647	Palindromic Substrings	Medium	solution.py
649	Dota2 Senate	Medium	solution.py
650	2 Keys Keyboard	Medium	solution.py
651	4 Keys Keyboard	Medium	solution.py
652	Find Duplicate Subtrees	Medium	solution.py
656	Coin Path	Hard	solution.py
658	Find K Closest Elements	Medium	solution.py
661	Image Smoother	Easy	solution.py
662	Maximum Width of Binary Tree	Medium	solution.py
665	Non-decreasing Array	Medium	solution.py
669	Trim a Binary Search Tree	Medium	solution.py
670	Maximum Swap	Medium	solution.py
673	Number of Longest Increasing Subsequence	Medium	solution.py
678	Valid Parenthesis String	Medium	solution.py
680	Valid Palindrome II	Easy	solution.py
682	Baseball Game	Easy	solution.py
684	Redundant Connection	Medium	solution.py
689	Maximum Sum of 3 Non-Overlapping Subarrays	Hard	solution.py
691	Stickers to Spell Word	Hard	solution.py
694	Number of Distinct Islands	Medium	solution.py
695	Max Area of Island	Medium	solution.py
698	Partition to K Equal Sum Subsets	Medium	solution.py
701	Insert into a Binary Search Tree	Medium	solution.py
703	Kth Largest Element in a Stream	Easy	solution.py
704	Binary Search	Easy	solution.py
705	Design HashSet	Easy	solution.py
706	Design HashMap	Easy	solution.py
707	Design Linked List	Medium	solution.py
708	Insert into a Sorted Circular Linked List	Medium	solution.py
711	Number of Distinct Islands II	Hard	solution.py
713	Subarray Product Less Than K	Medium	solution.py
716	Max Stack	Hard	solution.py
719	Find K-th Smallest Pair Distance	Hard	solution.py
721	Accounts Merge	Medium	solution.py

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NeetCode All in Python, Part 2