📗 Leetcode Notes

Dynamic Programming

• 53. Maximum Subarray
• 45. Jump Game II
• 139. Word Break
• 55. Jump Game
• 70. Climbing Stairs
• 509. Fibonacci Number

Math

• 50. Pow(x,n)

Matrix Problem

• 48. Rotate Image
• 36. Valid Sudoku
• 73. Set Matrix Zeroes

BFS and DFS

• 39. Combination Sum
• 40. Combination Sum II
• 77. Combinations
• 78. Subsets
• 994. Rotting Oranges
• 17. Letter Combinations Of A Phone Number

Two Pointers

• 75. Sort Colors
• 31. Next Permutation
• 11. Container With Most Water
• 151. Reverse Words in a String
• 1099. Two Sum Less Than K
• 3. Longest Substring Without Repeating Characters
• 15. 3Sum
• 19. Remove Nth Node From End of List

Binary Search

• 33. Search in Rotated Sorted Array
• 35. Search Insert Position
• 704. Binary Search
• 1060. Missing Element in Sorted Array

String

• 6. Zigzag Conversion

Sort

• 215. Kth Largest Element in an Array

Tree Traversal

• 94. Binary Tree Inorder Traversal
• 98. Validate Binary Search Tree

Word Problem

• 89. Gray Code
• 1958. Check if Move is Legal
• 1942. The Number of the Smallest Unoccupied Chair
• 1953. Maximum Number of Weeks for Which You Can Work
• 997. Find the Town Judge

Map

• 49. Group Anagrams

Stack

• 2832. Maximal Range That Each Element Is Maximum in It

⬅ Back to Notes Index