algorithms

LeetCode

Category	Problem
Base	53. Maximum Subarray
Tree	235. Lowest Common Ancestor of a Binary Search Tree
	199. Binary Tree Right Side View
	669. Trim a Binary Search Tree
	450. Delete Node in a BST
	103. Binary Tree Zigzag Level Order Traversal
	110. Balanced Binary Tree
	127. Word Ladder
	297. Serialize and Deserialize Binary Tree
	1609. Even Odd Tree
	662. Maximum Width of Binary Tree
	814. Binary Tree Pruning
	1325. Delete Leaves With a Given Value
	637. Average of Levels in Binary Tree
	116. Populating Next Right Pointers in Each Node
	107. Binary Tree Level Order Traversal II
	951 Flip Equivalent Binary Trees
	617. Merge Two Binary Trees
Array	22. Generate Parentheses
	703. Kth Largest Element in a Stream
	925. Long Pressed Name
	1833. Maximum Ice Cream Bars
	1079. Letter Tile Possibilities
	827. Making A Large Island
	283 Move Zeroes
	540. Single Element in a Sorted Array
	33. Search in Rotated Sorted Array
	819. Most Common Word
	565. Array Nesting
	3. Longest Substring Without Repeating Characters
	1743. Restore the Array From Adjacent Pairs
	120. Triangle
	981. Time Based Key-Value Store
	118. Pascal's Triangle
	56. Merge Intervals
	239. Sliding Window Maximum
	146. LRU Cache
	128. Longest Consecutive Sequence
	215. Kth Largest Element in an Array
	986. Interval List Intersections
	17. Letter Combinations of a Phone Number
	680. Valid Palindrome II
	733. Flood Fill
	49. Group Anagrams
	42. Trapping Rain Water
	200. Number of Islands
	973. K Closest Points to Origin
	724. Find Pivot Index
	93. Restore IP Addresses
	448. Find All Numbers Disappeared in an Array
	1046. Last Stone Weight
	436. Find Right Interval
	442. Find All Duplicates in an Array
	904 Fruit into baskets
	347. Top K Frequent Elements
	2070. Most Beautiful Item for Each Query
	240. Search a 2D Matrix II
	524. Longest Word in Dictionary through Deleting
	130. Surrounded Regions
	27. Remove Element
	84. Largest Rectangle in Histogram
	12. Integer to Roman
	289. Game of Life
	41. First Missing Positive
Linkedlist	2. Add Two Numbers
	86. Partition List
	1019. Next Greater Node In Linked List
Backtracking	463. Island Perimeter
	78. Subsets
	140. Word Break II
	77. Combinations
	51. N-Queens
	301. Remove Invalid Parentheses
	494. Target Sum
	39. Combination Sum
	79. Word Search
	216. Combination Sum III
	332. Reconstruct Itinerary
	40. Combination Sum II
Graph	207. Course Schedule
Recursive	62. Unique Paths
	695. Max Area of Island
	1. Mark all the visited cells
	2. Traverse the cells with value 1 recursively, and calculate
	124. Binary Tree Maximum Path Sum
	1448. Count Good Nodes in Binary Tree
	437. Path Sum III
	341. Flatten Nested List Iterator
	63. Unique Paths II
	64. Minimum Path Sum
	112. Path Sum
	129. Sum Root to Leaf Numbers
	113. Path Sum II
Concurrency	1114. Print in Order
	1115 Print FooBar Alternately
Trie	211. Add and Search Word - Data structure design
Sorting	451. Sort Characters By Frequency
	791. Custom Sort String
Queue	622. Design Circular Queue
String	459. Repeated Substring Pattern
	763. Partition Labels
	890. Find and Replace Pattern
Dynamicpro	1048. Longest String Chain
	139. Word Break
	392. Is Subsequence
	300. Longest Increasing Subsequence
	322. Coin Change
Stack	394. Decode String
	844. Backspace String Compare
	20. Valid Parentheses