Medium LeetCode Problems in Python, Part 2

All 820 Medium LeetCode problems with tested Python solutions. Part 2 of 5: problems 201-400.

Medium holds 820 problems.

#	Problem	Difficulty	Solution
362	Design Hit Counter	Medium	solution.py
364	Nested List Weight Sum II	Medium	solution.py
365	Water and Jug Problem	Medium	solution.py
366	Find Leaves of Binary Tree	Medium	solution.py
368	Largest Divisible Subset	Medium	solution.py
369	Plus One Linked List	Medium	solution.py
370	Range Addition	Medium	solution.py
371	Sum of Two Integers	Medium	solution.py
372	Super Pow	Medium	solution.py
373	Find K Pairs with Smallest Sums	Medium	solution.py
375	Guess Number Higher or Lower II	Medium	solution.py
376	Wiggle Subsequence	Medium	solution.py
377	Combination Sum IV	Medium	solution.py
378	Kth Smallest Element in a Sorted Matrix	Medium	solution.py
379	Design Phone Directory	Medium	solution.py
380	Insert Delete GetRandom O(1)	Medium	solution.py
382	Linked List Random Node	Medium	solution.py
384	Shuffle an Array	Medium	solution.py
385	Mini Parser	Medium	solution.py
386	Lexicographical Numbers	Medium	solution.py
388	Longest Absolute File Path	Medium	solution.py
390	Elimination Game	Medium	solution.py
393	UTF-8 Validation	Medium	solution.py
394	Decode String	Medium	solution.py
395	Longest Substring with At Least K Repeating Characters	Medium	solution.py
396	Rotate Function	Medium	solution.py
397	Integer Replacement	Medium	solution.py
398	Random Pick Index	Medium	solution.py
399	Evaluate Division	Medium	solution.py
400	Nth Digit	Medium	solution.py
402	Remove K Digits	Medium	solution.py
406	Queue Reconstruction by Height	Medium	solution.py
413	Arithmetic Slices	Medium	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
419	Battleships in a Board	Medium	solution.py
421	Maximum XOR of Two Numbers in an Array	Medium	solution.py
423	Reconstruct Original Digits from English	Medium	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
429	N-ary Tree Level Order Traversal	Medium	solution.py
430	Flatten a Multilevel Doubly Linked List	Medium	solution.py
433	Minimum Genetic Mutation	Medium	solution.py
435	Non-overlapping Intervals	Medium	solution.py
436	Find Right Interval	Medium	solution.py
437	Path Sum III	Medium	solution.py
438	Find All Anagrams in a String	Medium	solution.py
439	Ternary Expression Parser	Medium	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
447	Number of Boomerangs	Medium	solution.py
449	Serialize and Deserialize BST	Medium	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
453	Minimum Moves to Equal Array Elements	Medium	solution.py
454	4Sum II	Medium	solution.py
456	132 Pattern	Medium	solution.py
457	Circular Array Loop	Medium	solution.py
462	Minimum Moves to Equal Array Elements II	Medium	solution.py
464	Can I Win	Medium	solution.py
467	Unique Substrings in Wraparound String	Medium	solution.py
468	Validate IP Address	Medium	solution.py
469	Convex Polygon	Medium	solution.py
470	Implement Rand10() Using Rand7()	Medium	solution.py
473	Matchsticks to Square	Medium	solution.py
474	Ones and Zeroes	Medium	solution.py
475	Heaters	Medium	solution.py
477	Total Hamming Distance	Medium	solution.py
478	Generate Random Point in a Circle	Medium	solution.py
481	Magical String	Medium	solution.py
484	Find Permutation	Medium	solution.py
486	Predict the Winner	Medium	solution.py
487	Max Consecutive Ones II	Medium	solution.py
490	The Maze	Medium	solution.py
491	Non-decreasing Subsequences	Medium	solution.py
494	Target Sum	Medium	solution.py
497	Random Point in Non-overlapping Rectangles	Medium	solution.py
498	Diagonal Traverse	Medium	solution.py
503	Next Greater Element II	Medium	solution.py
505	The Maze II	Medium	solution.py
508	Most Frequent Subtree Sum	Medium	solution.py
510	Inorder Successor in BST II	Medium	solution.py
513	Find Bottom Left Tree Value	Medium	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
519	Random Flip Matrix	Medium	solution.py
522	Longest Uncommon Subsequence II	Medium	solution.py
523	Continuous Subarray Sum	Medium	solution.py
524	Longest Word in Dictionary through Deleting	Medium	solution.py
525	Contiguous Array	Medium	solution.py
526	Beautiful Arrangement	Medium	solution.py
528	Random Pick with Weight	Medium	solution.py
529	Minesweeper	Medium	solution.py
531	Lonely Pixel I	Medium	solution.py
532	K-diff Pairs in an Array	Medium	solution.py
533	Lonely Pixel II	Medium	solution.py
535	Encode and Decode TinyURL	Medium	solution.py
536	Construct Binary Tree from String	Medium	solution.py
537	Complex Number Multiplication	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
542	01 Matrix	Medium	solution.py
544	Output Contest Matches	Medium	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
553	Optimal Division	Medium	solution.py
554	Brick Wall	Medium	solution.py
555	Split Concatenated Strings	Medium	solution.py
556	Next Greater Element III	Medium	solution.py
558	Logical OR of Two Binary Grids Represented as Quad-Trees	Medium	solution.py
560	Subarray Sum Equals K	Medium	solution.py
562	Longest Line of Consecutive One in Matrix	Medium	solution.py
565	Array Nesting	Medium	solution.py
567	Permutation in String	Medium	solution.py
573	Squirrel Simulation	Medium	solution.py
576	Out of Boundary Paths	Medium	solution.py
581	Shortest Unsorted Continuous Subarray	Medium	solution.py
582	Kill Process	Medium	solution.py
583	Delete Operation for Two Strings	Medium	solution.py
592	Fraction Addition and Subtraction	Medium	solution.py
593	Valid Square	Medium	solution.py
606	Construct String from Binary Tree	Medium	solution.py
609	Find Duplicate File in System	Medium	solution.py
611	Valid Triangle Number	Medium	solution.py
616	Add Bold Tag in String	Medium	solution.py
621	Task Scheduler	Medium	solution.py
622	Design Circular Queue	Medium	solution.py
623	Add One Row to Tree	Medium	solution.py
624	Maximum Distance in Arrays	Medium	solution.py
625	Minimum Factorization	Medium	solution.py
633	Sum of Square Numbers	Medium	solution.py
634	Find the Derangement of An Array	Medium	solution.py
635	Design Log Storage System	Medium	solution.py
636	Exclusive Time of Functions	Medium	solution.py
638	Shopping Offers	Medium	solution.py
640	Solve the Equation	Medium	solution.py
641	Design Circular Deque	Medium	solution.py
646	Maximum Length of Pair Chain	Medium	solution.py
647	Palindromic Substrings	Medium	solution.py
648	Replace Words	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
654	Maximum Binary Tree	Medium	solution.py
655	Print Binary Tree	Medium	solution.py
658	Find K Closest Elements	Medium	solution.py
659	Split Array into Consecutive Subsequences	Medium	solution.py
662	Maximum Width of Binary Tree	Medium	solution.py
663	Equal Tree Partition	Medium	solution.py
665	Non-decreasing Array	Medium	solution.py
666	Path Sum IV	Medium	solution.py
667	Beautiful Arrangement II	Medium	solution.py
669	Trim a Binary Search Tree	Medium	solution.py
670	Maximum Swap	Medium	solution.py
672	Bulb Switcher II	Medium	solution.py
673	Number of Longest Increasing Subsequence	Medium	solution.py
676	Implement Magic Dictionary	Medium	solution.py
677	Map Sum Pairs	Medium	solution.py
678	Valid Parenthesis String	Medium	solution.py
681	Next Closest Time	Medium	solution.py
684	Redundant Connection	Medium	solution.py
686	Repeated String Match	Medium	solution.py
687	Longest Univalue Path	Medium	solution.py
688	Knight Probability in Chessboard	Medium	solution.py
690	Employee Importance	Medium	solution.py
692	Top K Frequent Words	Medium	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
702	Search in a Sorted Array of Unknown Size	Medium	solution.py
707	Design Linked List	Medium	solution.py
708	Insert into a Sorted Circular Linked List	Medium	solution.py
712	Minimum ASCII Delete Sum for Two Strings	Medium	solution.py
713	Subarray Product Less Than K	Medium	solution.py
714	Best Time to Buy and Sell Stock with Transaction Fee	Medium	solution.py
718	Maximum Length of Repeated Subarray	Medium	solution.py
720	Longest Word in Dictionary	Medium	solution.py
721	Accounts Merge	Medium	solution.py
722	Remove Comments	Medium	solution.py
723	Candy Crush	Medium	solution.py
725	Split Linked List in Parts	Medium	solution.py
729	My Calendar I	Medium	solution.py
731	My Calendar II	Medium	solution.py
735	Asteroid Collision	Medium	solution.py
737	Sentence Similarity II	Medium	solution.py
738	Monotone Increasing Digits	Medium	solution.py
739	Daily Temperatures	Medium	solution.py
740	Delete and Earn	Medium	solution.py
742	Closest Leaf in a Binary Tree	Medium	solution.py
743	Network Delay Time	Medium	solution.py

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