algorithms

LeetCode

Category	Problem
Base	53. Maximum Subarray
Tree	235. Lowest Common Ancestor of a Binary Search Tree
	199. Binary Tree Right Side View
	99. Recover Binary Search Tree
	669. Trim a Binary Search Tree
	450. Delete Node in a BST
	687. Longest Univalue Path
	103. Binary Tree Zigzag Level Order Traversal
	110. Balanced Binary Tree
	1361. Validate Binary Tree Nodes
	127. Word Ladder
	297. Serialize and Deserialize Binary Tree
	543. Diameter of 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
	2477. Minimum Fuel Cost to Report to the Capital
	1376. Time Needed to Inform All Employees
	107. Binary Tree Level Order Traversal II
	951 Flip Equivalent Binary Trees
	617. Merge Two Binary Trees
Design	1146. Snapshot Array
	1396. Design Underground System
	460. LFU
Array	22. Generate Parentheses
	703. Kth Largest Element in a Stream
	925. Long Pressed Name
	1833. Maximum Ice Cream Bars
	2653. Sliding Subarray Beauty
	1079. Letter Tile Possibilities
	31. Next Permutation
	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
	881. Boats to Save People
	239. Sliding Window Maximum
	304. Range Sum Query 2D - Immutable
	146. LRU Cache
	2007. Find Original Array From Doubled Array
	45. Jump Game II
	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
	1423. Maximum Points You Can Obtain from Cards
	973. K Closest Points to Origin
	1608. Special Array With X Elements Greater Than or Equal X
	724. Find Pivot Index
	438. Find All Anagrams in a String
	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
	678. Valid Parenthesis String
	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	542. 01 Matrix
	78. Subsets
	140. Word Break II
	77. Combinations
	1631. Path With Minimum Effort
	473. Matchsticks to Square
	842. Split Array into Fibonacci Sequence
	51. N-Queens
	980. Unique Paths III
	301. Remove Invalid Parentheses
	494. Target Sum
	39. Combination Sum
	79. Word Search
	216. Combination Sum III
	332. Reconstruct Itinerary
	40. Combination Sum II
	698. Partition to K Equal Sum Subsets
Graph	1202. Smallest String With Swaps
	847. Shortest Path Visiting All Nodes
	417. Pacific Atlantic Water Flow
	463. Island Perimeter
	743. Network Delay Time
	827. Making A Large Island
	2101. Detonate the Maximum Bombs
	721. Accounts Merge
	785. Is Graph Bipartite
	1584. Min Cost to Connect All Points
	787. Cheapest Flights Within K Stops
	207. Course Schedule
	329. Longest Increasing Path in a Matrix
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
Search	1011. Capacity To Ship Packages Within D Days
	1802. Maximum Value at a Given Index in a Bounded Array
	2812. Find the Safest Path in a Grid
	2616. Minimize the Maximum Difference of Pairs
Concurrency	1114. Print in Order
	1115 Print FooBar Alternately
Divide_conquer	218. The Skyline Problem
Trie	211. Add and Search Word - Data structure design
	1268. Search Suggestions System
	745. Prefix and Suffix Search
	720. Longest Word in Dictionary
	208. Implement Trie
Greedy	1642. Furthest Building You Can Reach
	68. Text Justification
	502. IPO
Sorting	462. Minimum Moves to Equal Array Elements II
	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	279. Perfect Squares
	1048. Longest String Chain
	139. Word Break
	2707. Extra Characters in a String
	1416. Restore The Array
	823. Binary Trees With Factors
	392. Is Subsequence
	85. Maximal Rectangle
	1359. Count All Valid Pickup and Delivery Options
	377. Combination Sum IV
	300. Longest Increasing Subsequence
	474. Ones and Zeroes
	1043. Partition Array for Maximum Sum
	322. Coin Change
Stack	224. Basic Calculator
	739. Daily Temperatures
	394. Decode String
	71. Simplify Path
	844. Backspace String Compare
	20. Valid Parentheses
	225. Implement Stack using Queues