1.Leetcode Algorithm Practice

Menu

• Leetcode.7. Reverse Integer

• Leetcode.38. Count and Say

• LeetCode.8. String to Integer (atoi)

• Leetcode.48. Rotate Image

• Leetcode.344. Reverse String

• Leetcode.47. Permutations II

• Leetcode.28. Implement strStr()

• Leetcode.46. Permutations

• Leetcode.357. Count Numbers with Unique Digits

• Leetcode.33. Search in Rotated Sorted Array

• Leetcode.283. Move Zeroes

• Leetcode.290. Word Pattern

• Leetcode.2. Add Two Numbers

• Leetcode.9. Palindrome Number

• Leetcode.19. Remove Nth Node From End of List

• Leetcode.22. Generate Parentheses

• Leetcode.73. Set Matrix Zeroes

• Leetcode.98. Validate Binary Search Tree

• Leetcode.100. Same Tree

• Leetcode.151. Reverse Words in a String

• Leetcode.130. Surrounded Regions

• Leetcode.169. Majority Element

• Leetcode.199. Binary Tree Right Side View

• Leetcode.215. Kth Largest Element in an Array

• Leetcode.207. Course Schedule

• Leetcode.210. Course Schedule II

• Leetcode.415. Add Strings

• Leetcode.401. Binary Watch

• Leetcode.424. Longest Repeating Character Replacement

• Leetcode.441. Arranging Coins

• Leetcode.94. Binary Tree Inorder Traversal

• Leetcode.88.Merge Sorted Array

• Leetcode.203. Remove Linked List Elements

• Leetcode.78. Subsets

• Leetcode.475. Heaters

• Leetcode.112. Path Sum

• Leetcode.77. Combinations

• Leetcode.268. Missing Number

• Leetcode.102.Binary Tree Level Order Traversal

• Leetcode.67. Add Binary

• Leetcode. 390.Elimination Game

• Leetcode.383. Ransom Note

• Leetcode.53. Maximum Subarray

• Leetcode.342. Power of Four

• Leetcode.438. Find All Anagrams in a String

• Leetcode.66. Plus One

• Leetcode.62. Unique Paths

• Leetcode.389. Find the Difference

• Leetcode.75. Sort Colors

• Leetcode.442. Find All Duplicates in an Array

• Leetcode.190. Reverse Bits

• Leetcode.539. Minimum Time Difference

• Leetcode.414. Third Maximum Number

• Leetcode.434. Number of Segments in a String

• Leetcode.318. Maximum Product of Word Lengths

• Leetcode.392. Is Subsequence

• Leetcode.394. Decode String

• Leetcode.367. Valid Perfect Square

• Leetcode.445. Add Two Numbers II

• Leetcode.553. Optimal Division

• Leetcode.413. Arithmetic Slices

• Leetcode.349. Intersection of Two Arrays

• Leetcode.5. Longest Palindromic Substring

• Leetcode.532. K-diff Pairs in an Array

• Leetcode.26. Remove Duplicates from Sorted Array

• Leetcode.70. Climbing Stairs

• Leetcode.409. Longest Palindrome

• Leetcode.507. Perfect Number

• Leetcode.107. Binary Tree Level Order Traversal II

• Leetcode.104. Maximum Depth of Binary Tree

• Leetcode.226. Invert Binary Tree

• Leetcode.563. Binary Tree Tilt

• Leetcode.237. Delete Node in a Linked

• Leetcode.111. Minimum Depth of Binary Tree

• Leetcode.543. Diameter of Binary Tree

• Leetcode.572. Subtree of Another Tree Add to List

• Leetcode.235. Lowest Common Ancestor of a Binary Search Tree

• Leetcode.108. Convert Sorted Array to Binary Search Tree

• Leetcode.101. Symmetric Tree

• Leetcode.501. Find Mode in Binary Search Tree Add to List

• Leetcode.257. Binary Tree Paths

• Leetcode.110. Balanced Binary Tree

• Leetcode.378. Kth Smallest Element in a Sorted Matrix

• Leetcode.373. Find K Pairs with Smallest Sums

• Leetcode.238. Product of Array Except Self

• Leetcode.423. Reconstruct Original Digits from English

• Leetcode.319. Bulb Switcher

• Leetcode.397. Integer Replacement

• Leetcode.166. Fraction to Recurring Decimal

• Leetcode.508. Most Frequent Subtree Sum

• Leetcode.69. Sqrt(x)

• Leetcode.50. Pow(x, n)

• Leetcode.459. Repeated Substring Pattern

• Leetcode.260. Single Number III

• Leetcode.136. Single Number

• Leetcode.137. Single Number II

• Leetcode.451. Sort Characters By Frequency

• Leetcode.125. Valid Palindrome

• Leetcode.118. Pascal's Triangle

• Leetcode.506. Relative Ranks

• Leetcode.447. Number of Boomerangs

• Leetcode.437. Path Sum III

• Leetcode.113. Path Sum II

• Leetcode.144. Binary Tree Preorder Traversal

• Leetcode.171. Excel Sheet Column Number

• Leetcode.168. Excel Sheet Column Title

• Leetcode.412. Fizz Buzz

  

• Leetcode.350. Intersection of Two Arrays II

• Leetcode.217. Contains Duplicate

• Leetcode.219. Contains Duplicate II

• Leetcade.220. Contains Duplicate III

• Leetcode.530. Minimum Absolute Difference in BST

• Leetcode.345. Reverse Vowels of a String

• Leetcode.404. Sum of Left Leaves

• Leetcode.119. Pascal's Triangle II

• Leetcode.27. Remove Element

• Leetcode.494. Target Sum

• Leetcode.515. Find Largest Value in Each Tree Row

• Leetcode.322. Coin Change

• Leetcode.518. Coin Change 2

• Leetcode.382. Linked List Random Node

• Leetcode.461. Hamming Distance

• Leetcode.477. Total Hamming Distance

• Leetcode.371. Sum of Two Integers

• Leetcode.405. Convert a Number to Hexadecimal

• Leetcode.476. Number Complement

• Leetcode.187. Repeated DNA Sequences

• Leetcode.500. Keyboard Row

• Leetcode.463. Island Perimeter

• Leetcode.561. Array Partition I

• Leetcode.557. Reverse Words in a String III

• Leetcode.566. Reshape the Matrix

• Leetcode.387. First Unique Character in a String

• Leetcode.242. Valid Anagram

• Leetcode.121. Best Time to Buy and Sell Stock

• Leetcode.287. Find the Duplicate Number

• Leetcode.657. Judge Route Circle

• Leetcode.485. Max Consecutive Ones

• Leetcode.520. Detect Capital

• Leetcode.521. Longest Uncommon Subsequence I

• Leetcode.448. Find All Numbers Disappeared in an Array

• Leetcode.206. Reverse Linked List

• Leetcode.637. Average of Levels in Binary Tree

• Leetcode.236. Lowest Common Ancestor of a Binary Tree

• Leetcode.623. Add One Row to Tree

• Leetcode.652. Find Duplicate Subtrees

• Leetcode.606. Construct String from Binary Tree

• Leetcode.141. Linked List Cycle

• Leetcode.617. Merge Two Binary Trees

• Leetcode.538. Convert BST to Greater Tree

• Leetcode.160. Intersection of Two Linked Lists

• Leetcode.234. Palindrome Linked List

• Leetcode.155. Min Stack

• Leetcode.189. Rotate Array

• Leetcode.61. Rotate List

• Leetcode.581. Shortest Unsorted Continuous Subarray

• Leetcode.198. House Robber

• Leetcode.213. House Robber II

• Leetcode.337. House Robber III

• Leetcode.109. Convert Sorted List to Binary Search Tree

• Leetcode.86. Partition List

• Leetcode.74. Search a 2D Matrix

• Leetcode.647. Palindromic Substrings

• Leetcode.6. ZigZag Conversion

• Leetcode.40. Combination Sum II

• Leetcode.39. Combination Sum

• Leetcode.611. Valid Triangle Number