Leetcode-My-Solutons

This repo recors my daily LeetCode algo problems solutions. Problems list reffered to greyireland - algorithm-pattern

Categories

• Sorting Algorithms

  • Sorting Algorithms

• Most Know

  • 146. LRU Cache

• Divide and Conquer

  • 34. Find First and Last Position of Element in Sorted Array
  • 169. Majority Element

• Binary Tree / Binary Search Tree / Tree

  • 104. Maximum Depth of Binary Tree
  • 110. Balanced Binary Tree
  • 124. Binary Tree Maximum Path Sum
  • 236. Lowest Common Ancestor of a Binary Tree
  • 102. Binary Tree Level Order Traversal
  • 107.Binary Tree Level Order Traversal II
  • 98. Validate Binary Search Tree
  • 701. Insert into a Binary Search Tree
  • 450. Delete Node in a BST
  • 814. Binary Tree Pruning
  • 429. N-ary Tree Level Order Traversal
  • 669. Trim a Binary Search Tree
  • 1325. Delete Leaves With a Given Value
  • Red Black Tree
  • 297. Serialize and Deserialize Binary Tree
  • 449. Serialize and Deserialize BST
  • 590. N-ary Tree Postorder Traversal
  • 897. Increasing Order Search Tree
  • 117. Populating Next Right Pointers in Each Node II
  • 95. Unique Binary Search Trees II
  • 865. Smallest Subtree with all the Deepest Nodes
  • 1457. Pseudo-Palindromic Paths in a Binary Tree
  • 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree

• Recursion

  • 24. Swap Nodes in Pairs

• KnapSack problems

  • Basic KnapSack Implementation
  • 1143. Longest Common Subsequence
  • 139. Word Break
  • 474. Ones and Zeroes
  • 322. Coin Change

• Greedy Algorithm

  • 435. Non-overlapping Intervals
  • 605. Can Place Flowers
  • 881. Boats to Save People
  • 376. Wiggle Subsequence

• LinkedList

  • 2. Add Two Numbers
  • 83. Remove Duplicates from Sorted List
  • 82. Remove Duplicates from Sorted List II
  • 206. Reverse Linked List
  • 92.Reverse-Linked-List
  • 21. Merge Two Sorted Lists
  • 86. Partition List
  • 148. Sort List
  • 143. Reorder List
  • 141. Linked List Cycle
  • 142. Linked List Cycle II
  • 138. Copy List with Random Pointer
  • 160. Intersection of Two Linked Lists
  • 1721. Swapping Nodes in a Linked List

• Bitwise

  • 231. Power of Two
  • 136. Single Number
  • 137. Single Number II
  • 260. Single Number III
  • 191. Number of 1 Bits
  • 338. Counting Bits
  • 190. Reverse Bits
  • 201. Bitwise AND of Numbers Range
  • 289. Game of Life
  • 50. Pow(x, n)
    • 1734. Decode XORed Permutation

• Queue and Stack

  • 155. Min Stack
  • 150. Evaluate Reverse Polish Notation
  • 394. Decode String
  • 94. Binary Tree Inorder Traversal
  • 133. Clone Graph
  • 232. Implement Queue using Stacks
  • 542. 01 Matrix
  • 742. Closest Leaf in a Binary Tree

• Binary Search

  • 35. Search Insert Position
  • 74. Search a 2D Matrix
  • 278. First Bad Version
  • 153. Find Minimum in Rotated Sorted Array
  • 33. Search in Rotated Sorted Array
  • 81. Search in Rotated Sorted Array II
  • 530. Minimum Absolute Difference in BST
  • 700. Search in a Binary Search Tree
  • 173. Binary Search Tree Iterator
  • 941. Valid Mountain Array
  • 1539. Kth Missing Positive Number
  • 34. Find First and Last Position of Element in Sorted Array

• Dynamic Programming

  • 121. Best Time to Buy and Sell Stock
  • 53. Maximum Subarray
  • 91. Decode Ways
  • 120. Triangle
  • 62. Unique Paths
  • 55. Jump Game
  • 300. Longest Increasing Subsequence
  • 1143. Longest Common Subsequence
  • 509. Fibonacci Number
  • 312. Burst Balloons
  • 1641.Count-Sorted-Vowel-Strings

• Graph

  • Graph Algorithm Template
  • 742. Closest Leaf in a Binary Tree
  • 200. Number of Islands
  • 133. Clone Graph
  • 841. Keys and Rooms
  • 399. Evaluate Division
  • DFS
    • 547. Friend Circles
    • 695. Max Area of Island
    • 733. Flood Fill
  • BFS
    • 1162. As Far from Land as Possible
    • 815. Bus Routes
    • 863. All Nodes Distance K in Binary Tree
    • 127.Word Ladder
    • 329.Longest-Increasing-Path-in-a-Matrix
    • 1091.Shortest-Path-in-Binary-Matrix
  • Topological Sort
    • 207. Course Schedule
    • 210. Course Schedule II
    • 802. Find Eventual Safe States
  • Dijkstra / directed graph shortest path
    • 743. Network Delay Time
  • Bipartite
    • 785. Is Graph Bipartite?
    • 886. Possible Bipartition
  • Strong Components
  • Union Find
    • 1202. Smallest String With Swaps
    • 721. Accounts Merge
  • in-degree && out-degree
    • 997. Find the Town Judge
  • Bellmand-Ford
    • 787. Cheapest Flights Within K Stops
  • Tarjan
    • 1192.Critical-Connections-in-a-Network

• Two Pointers

  • 567. Permutation in String
  • 438. Find All Anagrams in a String
  • 3. Longest Substring Without Repeating Characters
  • 88. Merge Sorted Array

• Strings Manipulation

  • 937. Reorder Data in Log Files
  • 1657. Determine if Two Strings Are Close
  • 869. Reordered Power of 2

• Array

  • 66. Plus One
  • 118. Pascal's Triangle
  • 119. Pascal's Triangle II
  • 217. Contains Duplicate
  • 136. Single Number
  • 350. Intersection of Two Arrays II
  • 189. Rotate Array
  • 59. Spiral Matrix II
  • 1010. Pairs of Songs With Total Durations Divisible by 60
  • 977. Squares of a Sorted Array
  • 454. 4Sum II
  • 334. Increasing Triplet Subsequence
  • 498. Diagonal Traverse
  • 289. Game of Life
  • 1337. The K Weakest Rows in a Matrix
  • 1748. Sum of Unique Elements
  • 485. Max Consecutive Ones
  • 923.3Sum With Multiplicity
  • 775.Global and Local Inversions
  • 48. Rotate Image
  • 56. Merge Intervals
  • 1658. Minimum Operations to Reduce X to Zero
    • Monotonic Stack
      • 84. Largest Rectangle in Histogram
      • 496. Next Greater Element I
      • 503. Next Greater Element II
      • 739. Daily Temperatures
      • 1673.Find the Most Competitive Subsequence

• Back Tracking

  • 78. Subsets
  • 131. Palindrome Partitioning
  • 526. Beautiful Arrangement

• String

  • 784. Letter Case Permutation
  • StringBuilder
    • 67. Add Binary
  • Palindrome
    • 647. Palindromic Substrings

• Probability

  • 382. Linked List Random Node

• Others

  • 284. Peeking Iterator

• Cracking The Coding Interview

  • Chapter 1 Arrays and String

    • 48.Rotate Image
    • 73.Set Matrix Zeroes
    • 443.String Compression
    • 796.Rotate String

  • Chapter 2 Linked List

    • 83.Remove Duplicated List
    • 19.Remove Nth Node From End of List
    • 86.Partition List
    • 2.Add two numbers
    • 237. Delete Node in a Linked List
    • 160. Intersection of Two Linked Lists
    • 234.Palindrome Linked List
    • 160.Intersection of Two Linked Lists

  • Chapter 8 Recursion and Dynamic Programming

    • 62.Unique Paths
    • 70.climbing stairs
    • 78.Subsets