LeetCode
1.[LeetCode] Two Sum
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2.[LeetCode] Palindrome Number
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3.[LeetCode] Palindrome Number
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4.[LeetCode] Roman to Integer
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5.[LeetCode] Longest Common Prefix
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6.[LeetCode] Valid Parentheses
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7.[LeetCode] Merge Two Sorted Lists
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8.[LeetCode] Remove Duplicates from Sorted Array
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9.[LeetCode] Remove Element
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10.[LeetCode] Find the Index of the First Occurrence in a String
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11.[LeetCode] Search Insert Position
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12.[LeetCode] Length of Last Word
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13.[LeetCode] Plus One
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14.[LeetCode] Add Binary
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15.[LeetCode] Sqrt(x)
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16.[LeetCode] Climbing Stairs
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17.[LeetCode] Remove Duplicates from Sorted List
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18.[LeetCode] Merge Sorted Array
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19.[LeetCode] Binary Tree Inorder Traversal
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20.[LeetCode] Same Tree
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21.[LeetCode] Symmetric Tree
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22.[LeetCode] Maximum Dept of Binary Tree
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23.[LeetCode] Convert Sorted Array to Binary Search Tree
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24.[LeetCode] Balanced Binary Tree
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25.[LeetCode] Minimum Depth of Binary Tree
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26.[LeetCode] Path Sum
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27.[LeetCode] Pascal's Triangle
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28.[LeetCode] Pascal's Triangle II
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29.[LeetCode] Best Time to Buy and Sell Stock
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30.[LeetCode] Valid Palindrome
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31.[LeetCode] Single Number
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32.[LeetCode] Linked List Cycle
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33.[LeetCode] Binary Tree Preorder Trversal
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34.[LeetCode] Binary Tree Postorder Traversal
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35.[LeetCode] Intersection of Two Linked Lists
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36.[LeetCode] Excel Sheet Column Title
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37.[LeetCode] Majority Element
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38.[LeetCode] Excel Sheet Column Number
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39.[LeetCode] Combine Two Tables
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40.[LeetCode] Employ Earning More Than Their Manager
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41.[LeetCode] Duplicate Email
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42.[LeetCode] Customers Who Never Order
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43.[LeetCode] Reverse Bits
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44.[LeetCode] Number of 1 Bits
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45.[LeetCode] Delete Duplicate Emails
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46.[LeetCode] Happy Number
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47.[LeetCode] Rising Temperature
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48.[LeetCode] Remove Linked List Elements
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49.[LeetCode] Isomorphic Strings
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50.[LeetCode] Reverse Linked List
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51.[LeetCode] Contains Duplicate
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52.[LeetCode] Contains Duplicate II
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53.[LeetCode] Count Complete Tree Nodes
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54.[LeetCode] Implement Stack using Queues
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55.[LeetCode] Invert Binary Tree
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56.[LeetCode] Summary Ranges
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57.[LeetCode] Power of Two
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58.[LeetCode] Implement Queue using Stacks
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59.[LeetCode] Palindrome Linked List
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60.[LeetCode] Valid Anagram
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61.[LeetCode] Binary Tree Paths
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62.[LeetCode] Add Digits
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63.[LeetCode] Ugly Number
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64.[LeetCode] Missing Number
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65.[LeetCode] First Bad Version
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66.[LeetCode] Move Zeroes
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67.[LeetCode] Word Pattern
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68.[LeetCode] Nim Game
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69.[LeetCode] Range Sum Query - Immutable
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70.[LeetCode] Power of Three
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71.[LeetCode] Counting Bits
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72.[LeetCode] Power of Four
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73.[LeetCode] Reverse Vowels of a String
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74.[LeetCode] Intersection of Two Arrays
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75.[LeetCode] Intersetion of Two Arrays II
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76.[LeetCode] Valid Perfect Square
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77.[LeetCode] Guess Number Higher or Lower
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78.[LeetCode] Reverse String
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79.[LeetCode] Ransom Note
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80.[LeetCode] First Unique Character in a String
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81.[LeetCode] Find the Difference
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82.[LeetCode] Is Subsequence
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83.[LeetCode] Binary Watch
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84.[LeetCode] Sum of Left Leaves
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85.[LeetCode] Convert a Number to Hexadecimal
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86.[LeetCode] Longest Palindrome
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87.[LeetCode] Fizz Buzz
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88.[LeetCode] Third Maximum Number
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89.[LeetCode] Add Strings
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90.[LeetCode] Number of Segments in a String
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91.[LeetCode] Arranging Coins
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92.[LeetCode] Find All Numbers Disappeared in an Array
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93.[LeetCode] Assign Cookies
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94.[LeetCode] Repeated Substring Pattern
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95.[LeetCode] Hamming Distance
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96.[LeetCode] Island Perimeter
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97.[LeetCode] Number Complement
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98.[LeetCode] License Key Formatting
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99.[LeetCode] Max Consecutive Ones
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100.[LeetCode] Construct the Rectangle
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101.[LeetCode] Teemo Attacking
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102.[LeetCode] Next Greater Element I
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103.[LeetCode] Keyboard Row
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104.[LeetCode] Find Mode in Binary Search Tree
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105.[LeetCode] Base 7
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106.[LeetCode] Relative Ranks
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107.[LeetCode] Perfect Number
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108.[LeetCode] Fibonacci Number
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109.[LeetCode] Game play Analysis I
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110.[LeetCode] Detect Capital
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111.[LeetCode] Longest Uncommon Subsequence I
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112.[LeetCode] Minimum Absolute Difference in Bst
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113.[LeetCode] Reverse String II
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114.[LeetCode] Diameter of Binary Tree
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115.[LeetCode] Student Attendance Record I
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116.[LeetCode] Reerse Words in a String III
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117.[LeetCode] Maximum Depth of N-ary Tree
[LeetCode] 550. Maximum Depth of N-ary Tree
118.[LeetCode] Array Partition
LeetCode 561. Array Partition
119.[LeetCode] Binary Tree Tilt
LeetCode 563. Binary Tree Tilt
120.[LeetCode] Reshape the Matrix
LeetCode 556. Reshape the Matrix
121.[LeetCode] Subtree of Another Tree
LeetCode 572. Subtree of Another Tree
122.[LeetCode] Distribute Candies
LeetCode 575. Distribute Candies
123.[LeetCode] Employee Bonus
LeetCode 577. Employee Bonus
124.[LeetCode] Find Customer Referee
LeetCode 584. Find Customer Referee
125.[LeetCode] Customer Placing the Largest Number of Orders
LeetCode 586. Customer Placing the Lagest Number of Orders
126.[LeetCode] N-ary Tree Preorder Traversal
LeetCode 589. N-ary Tree Preorder Traversal
127.[LeetCode] N-ary Tree Postorder Traversal
LeetCode 590. N-ary Tree Postorder Traversal
128.[LeetCode] Longest Harmonious Subsequence
LeetCode 594. Longest Harmonious Subsequence
129.[LeetCode] Big Countries
LeetCode 595. Big Countries
130.[LeetCode] Classes With at Least 5 Students
LeetCode 596. Classes With at Least 5 Students
131.[LeetCode] Range Addition II
LeetCode 598. Range Addition II
132.[LeetCode] Minimum Index Sum of Two Lists
LeetCode 599. Minimum Index Sum of Two Lists
133.[LeetCode] Can Place Flowers
LeetCode 605. Can Place Flowers
134.[LeetCode] Sales Person
LeetCode 607. Sales Person
135.[LeetCode] Triangle Judgement
LeetCode 610. Triangle Judgement
136.[LeetCode] Merge Two Binary Trees
LeetCode 617. Merge Two Binary Trees
137.[LeetCode] Biggest Single Number
LeetCode 619. Biggest Single Number
138.[LeetCode] Not Boring Movies
LeetCode 620. Not Boring Movies
139.[LeetCode] Swap Sex of Employees
LeetCode 627. Swap Sex of Employees
140.[LeetCode] Maximum Product of Three Numbers
LeetCode 628. Maximum Product of Three Numbers
141.[LeetCode] Average of Levels in Binary Tree
LeetCode 637. Average of Levels in Binary Tree
142.[LeetCode] Maximum Average Subarray I
LeetCode 643. Maximum Average Subarray I
143.[LeetCode] Set Mismatch
LeetCode 645. Set Mismatch
144.[LeetCode] Two Sum IV - Input is a BST
LeetCode 653. Two Sum IV - Input is a BST
145.[LeetCode] Robot Return to Origin
LeetCode 657. Robot Return to Origin
146.[LeetCode] Image Smoother
LeetCode 661. Image Smoother
147.[LeetCode] Second Minimum Node In a Binary Tree
LeetCode 671. Second Minimum Node In a Binary Tree
148.[LeetCode] Longest Continuous Increasing Subsequence
LeetCode 674. Longest Continuous Increasing Subsequence
149.[LeetCode] Valid Palindrome II
LeetCode 680. Valid Palindrome II
150.[LeetCode] Baseball Game
LeetCode 682. Baseball Game
151.[LeetCode] Binary Number with Alternating Bits
LeetCode 693. Binary Number with Alternating BIts
152.[LeetCode] Count Binary Substrings
LeetCode 696. Count Binary Substrings
153.[LeetCode] Degree of an Array
LeetCode 697. Degree of an Array
154.[LeetCode] Search in a Binary Search Tree
LeetCode 700. Search in a Binary Search Tree
155.[LeetCode] Kth Largest Element in a Stream
LeetCode 703. Kth Largest Element in a Stream
156.[LeetCode] Binary Search
LeetCode 704. Binary Search
157.[LeetCode] Design HashSet
LeetCode 705. Design HashSet
158.[LeetCode] Design HashMap
LeetCode 706. Design HashMap
159.[LeetCode] To Lower Case
LeetCode 709. To Lower Case
160.[LeetCode] 1-bit and 2-bit Characters
LeetCode 717. 1-bit and 2-bit Characters
161.[LeetCode] Find Pivot Index
LeetCode 724. Find Pivot Index
162.[LeetCode] Flood Fill
LeetCode 733. Flood Fill
163.[LeetCode] Find Smallest Letter Greater Than Target
LeetCode 744. Find Smallest Letter Greater Than Target
164.[LeetCode] Min Cost Climbing Stairs
LeetCode 746. Min Cost Climbing Stairs
165.[LeetCode] Largest Number At Least Twice of Others
LeetCode 747. Largest Number At Least Twice of Others
166.[LeetCode] Shortest Completing Word
LeetCode 748. Shortest Completing Word
167.[LeetCode] Prime Number of Set Bits in Binary Representation
LeetCode 762. Prime Number of Set Bits in Binary Representation
168.[LeetCode] Toeplitz Matrix
LeetCode 766. Toeplitz Matrix
169.[LeetCode] Jewels and Stones
LeetCode 771. Jewels and Stones
170.[LeetCode] Minimum Distance Between BST Nodes
LeetCode 783. Minimum Distance Between BST Nodes
171.[LeetCode] Rotate String
LeetCode 796. Rotate String
172.[LeetCode] Unique Morse Code Words
LeetCode 805. Unique Morse Code Words
173.[LeetCode] Number of Lines To Write String
LeetCode 806. Number of Lines To Write String
174.[LeetCode] Largest Triangle Area
LeetCode 812. Largest Triangle Area
175.[LeetCode] Most Common Word
LeetCode 819. Most Common Word
176.[LeetCode] Shortest Distance to a Character
LeetCode 821. Shortest Distance to a Character
177.[LeetCode] Goat Latin
LeetCode 824. Goat Latin
178.[LeetCode] Positions of Large Groups
LeetCode 830. Positions of Large Groups
179.[LeetCode] Flipping an Image
LeetCode 832. Flipping an Image
180.[LeetCode] Rectangle Overlap
LeetCode 836. Rectangle Overlap
181.[LeetCode] Backspace String Compare
LeetCode 844. Backspace String Compare
182.[LeetCode] Buddy Strings
LeetCode 859. Buddy Strings
183.[LeetCode] Lemonade Change
LeetCode 860. Lemonade Change
184.[LeetCode] Transpose Matrix
LeetCode 867. Transpose Matrix
185.[LeetCode] Binary Gap
LeetCode 868. Binary Gap
186.[LeetCode] Binary Gap
LeetCode 868. Binary Gap
187.[LeetCode] Leaf-Similar Trees
LeetCode 872. Leaf-Similar Trees
188.[LeetCode] Middle of the Linked List
LeetCode 876. Middle of the Linked List
189.[LeetCode] Projection Area of 3D Shapes
LeetCode 883. Projection Area of 3D Shapes
190.[LeetCode] Uncommon Words from Two Sentences
LeetCode 884. Uncommon Words from Two Sentences
191.[LeetCode] Fair Candy Swap
LeetCode 888. Fair Candy Swap
192.[LeetCode] Surface Area of 3D Shapes
LeetCode 892. Surface Area of 3D Shapes
193.[LeetCode] Monotonic Array
LeetCode 896. Monotonic Array
194.[LeetCode] Increasing Order Search Tree
LeetCode 897. Increasing Order Search Tree
195.[LeetCode] Sort Array By Parity
LeetCode 905. Sort Array By Parity
196.[LeetCode] Smallest Range I
LeetCode 908. Smallest Range I
197.[LeetCode] X of Kind in a Deck of Cards
LeetCode 914. X of a Kind in a Deck of Cards
198.[LeetCode] Reverse Only Letters
LeetCode 917. Reverse Only Letters
199.[LeetCode] Sort Array By Parity II
LeetCode 922. Sort Array By Parity II
200.[LeetCode] Long Pressed Name
LeetCode 925. Long Pressed Name
201.[LeetCode] Unique Email Addresses
LeetCode 929. Unique Email Addresses
202.[LeetCode] Number of Recent Calls
LeetCode 933. Number of Recent Calls
203.[LeetCode] Range Sum of BST
LeetCode 938. Range Sum of BST
204.[LeetCode] Valid Mountain Array
LeetCode 941. Valid Mountain Array
205.[LeetCode] DI String Match
LeetCode 942. DI String Match
206.[LeetCode] Delete Columns to Make Sorted
LeetCode 944. Delete Columns to Make Sorted
207.[LeetCode] Verifying an Alien Dictionary
LeetCode 953. Verifying an Alien Dictionary
208.[LeetCode] N-Repeated Element in Size 2N Array
LeetCode 961. N-Repeated Element in Size 2N Array
209.[LeetCode] Univalued Binary Tree
LeetCode 965. Univalued Binary Tree
210.[LeetCode] Largest Perimeter Triangle
LeetCode 976. Largest Perimeter Triangle
211.[LeetCode] Squares of a Sorted Array
LeetCode 977. Squares of a Sorted Array
212.[LeetCode] Add to Array-Form of Integer
LeetCode 989. Add to Array-form of Integer
213.[LeetCode] Cousins in Binary Tree
LeetCode 993. Cousins in Binary Tree
214.[LeetCode] Find the Town Judge
LeetCode 997. FInd the Town Judge
215.[LeetCode] Available Captures for Rook
LeetCode 999. Available Captures for Rook
216.[LeetCode] Find Common Characters
LeetCode 1002. Find Common Characters
217.[LeetCode] Maximize Sum Of Array After K Negations
LeetCode 1005. Maximize Sum Of Array After K Negations
218.[LeetCode] Complement of Base 10 Integer
LeetCode 1009. Complement of Base 10 Integer
219.[LeetCode] Partition Array Into Three Parts With Equal Sum
LeetCode 1013. Partition Array Into Three Parts With Equal Sum
220.[LeetCode] Binary Prefix Divisible By 5
LeetCOde 1018. Binary Prefix Divisible By 5
221.[LeetCode] Remove Outermost Parentheses
LeetCode 1021. Remove Outermost Parentheses
222.[LeetCode] Sum of Root To Leaf Binary Number
LeetCode 1022. Sum of Root To Leaf Binary Numbers
223.[LeetCode] Divisor Game
LeetCode 1025. Divisor Game
224.[LeetCode] Matrix Cells in Distance Order
LeetCode 1030. Matrix Cells in Distance Order
225.[LeetCode] Valid Boomerang
LeetCode 1037. Valid Boomerang
226.[LeetCode] Last Stone Weight
LeetCode 1046. Last Stone Weight
227.[LeetCode] Remove All Adjacent Duplicates In String
LeetCode 1047. Remove All Adjacent Duplicates In String
228.[LeetCode] Actors and Directors Who Cooperated At Least Three Times
LeetCode 1050. Actors and Directors Who Cooperated At Least Three Times
229.[LeetCode] Height Checker
LeetCode 1051. Height Checker
230.[LeetCode] Product Sales Analysis I
LeetCode 1068. Product Sales Analysis I
231.[LeetCode] Greatest Common Divisor of Strings
LeetCode 1071. Greatest Common Divisor of Strings
232.[LeetCode] Project Empoyees I
LeetCode 1075. Project Employees I
233.[LeetCode] Occurrences After Bigram
LeetCode 1078. Occurrences After Bigram
234.[LeetCode] Sales Analysis III
LeetCode 1084. Sales Analysis III
235.[LeetCode] Duplicate Zeros
LeetCode 1089. Duplicate Zeros
236.[LeetCode] Distribute Candies to People
LeetCode 1103. Distribute Candies to People
237.[LeetCode] Defanging an IP Address
LeetCode 1108. Defanging an IP Address
238.[LeetCode] Print in Order
LeetCode 1114. Print in Order
239.[LeetCode] Relative Sort Array
LeetCode 1122. Relative Sort Array
240.[LeetCode] Number of Equivalent Domino Pairs
LeetCode 1128. Number of Equivalent Domino Pairs
241.[LeetCode] N-th Tribonacci Number
LeetCode 1137. N-th Trbonacci Number
242.[LeetCode] User Activity for the Past 30 Days I
LeetCode 1141. User Activity for the Past 30 Days I
243.[LeetCode] Article Views I
LeetCode 1148. Article Views I
244.[LeetCode] Day of the Year
LeetCode 1154. Day of the Year
245.[LeetCode] Find Words That Can Be Formed by Characters
LeetCode 1160. Find Words That Can Be Formed by Characters
246.[LeetCode] Prime Arrangements
LeetCode 1175. Prime Arrangements
247.[LeetCode] Reformat Department Table
LeetCode 1179. Reformat Department Table
248.[LeetCode] Distance Between Bus Stops
LeetCode 1184. Distance Between Bus Stops
249.[LeetCode] Day of the Week
LeetCode 1185. Day of the Week
250.[LeetCode] Maximum Number of Balloons
LeetCode 1189. Maximum Number of Balloons
251.[LeetCode] Minimum Absolute Difference
LeetCode 1200. Minimum Absolute Difference
252.[LeetCode] Unique Number of Occurrences
LeetCode 1207. Unique Number of Occurrences
253.[LeetCode] Queries Quality and Percentage
LeetCode 1211. Queries Quality and Percentage
254.[LeetCode] Minimum Cost to Move Chips to The Same Position
LeetCode 1217. Minimum Cost to Move Chips to The Same Position
255.[LeetCode] Split a String in Balanced Strings
LeetCode 1221. Split a String in Balanced Strings
256.[LeetCode] Check If It is a Straight Line
LeetCode 1232. Check If It Is a Straight Line
257.[LeetCode] Average Selling Price
LeetCode 1251. Average Selling Price
258.[LeetCode] Average Selling Price
LeetCode 1251. Average Selling Price
259.[LeetCode] Cells with Odd Values in a Matrix
LeetCode 1252. Cells with Odd Values in a Matrix
260.[LeetCode] Shift 2D Grid
LeetCode 1260. Shift 2D Grid
261.[LeetCode] Minimum Time Visiting All Points
LeetCode 1266. Minimum Time Visiting All Points
262.[LeetCode] Find Winner on a Tic Tac Toe Game
LeetCode 1275. Find Winner on a Tic Tac Toe Game
263.[LeetCode] Students and Examinations
LeetCode 1280. Students and Examinations
264.[LeetCode] Subtract the Product and Sum of Digits of an Integer
LeetCode 1281. Subtract the Product and Sum of Digits of an Integer
265.[LeetCode] Element Appearing More Than 25% In Sorted Array
LeetCode 1287. Element Appearing More Than 25% In Sorted Array
266.[LeetCode] Convert Binary Number in a Linked List to Integer
LeetCode 1290. Convert Binary Number in a Linked List to Integer
267.[LeetCode] FInd Numbers with Even Number of Digits
LeetCode 1295. Find Numbers with Even Number of Digits
268.[LeetCode] Replace Elements with Greatest Element On Right Side
LeetCode 1299. Replace Elements with Greatest Element on Right Side
269.[LeetCode] Find N Unique Integers Sum up to Zero
LeetCode 1304. Find N Unique Integers Sum up to Zero
270.[LeetCode] Decrypt String from Alphabet to Integer Mapping
LeetCode 1309. Decrypt String from Alphabet to Integer Mapping
271.[LeetCode] Decompress Run-Length Encoded List
LeetCode 1313. Decompress Run-Length Encoded List
272.[LeetCode] Convert Integer to the Sum of Two No-Zero Integers
LeetCode 1317. Convert Integer to the Sum of Two No-Zero Integers
273.[LeetCode] Maximum 69 Number
LeetCode 1323. Maximum 69 Number
274.[LeetCode] List the Products Ordered in a Period
LeetCode 1327. List the Products Ordered in a Period
275.[LeetCode] Rank Transform of an Array
LeetCode 1331. Rank Transform of an Array
276.[LeetCode] Remove Palindromic Subsequences
LeetCode 1332. Remove Palindromic Subsequences
277.[LeetCode] The K Weakest Rows in a Matrix
LeetCode 1337. The K Weakest Rows in a Matrix
278.[LeetCode] Number of Steps to Reduce a Number to Zero
LeetCode 1342. Number of Steps to Reduce a Number to Zero
279.[LeetCode] Check If N and Its Double Exist
LeetCode 1346. Check If N and Its Double Exist
280.[LeetCode] Count Negative Number in a Sorted Matrix
LeetCode 1351. Count Negative Number in a Sorted Matrix
281.[LeetCode] Sort Integers by the Number of 1 Bits
LeetCode 1356. Sort Integers by The Number of 1 Bits
282.[LeetCode] Number of Days Between Two Dates
LeetCode 1360. Number of Days Between Two Dates
283.[LeetCode] How Many Numbers Are Smaller Than the Current Number
LeetCode 1365. How Many Numbers Are Smaller Than the Current Number
284.[LeetCode] Increasing Decreasing String
LeetCode 1370. Increasing Decreasing String
285.[LeetCode] Generate a String With Characters That Have Odd Counts
LeetCode 1374. Generate a String With Characters That Have Odd Count
286.[LeetCode] Replace Employee ID With The Unique Identifier
LeetCode 1378. Replace Employee ID With The Unique Identifier
287.[LeetCode] Find a Corresponding Node of a Binary Tree in a Clone of That Tree
LeetCode 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree
288.[LeetCode] Lucky Numbers in a Matrix
LeetCode 1380. Lucky Numbers in a Matrix
289.[LeetCode] Find the Distance Value Between Two Arrays
LeetCode 1385. Find the Distance Value Between Two Arrays
290.[LeetCode] Create Target Array in the Given Order
LeetCode 1389. Create Target Array in the Given Order
291.[LeetCode] Find Lucky Integer in an Array
LeetCode 1394. Find Lucky Integer in an Array
292.[LeetCode] Count Largest Group
LeetCode 1399. Count Largest Group
293.[LeetCode] Minimum Subsequence in Non-Increasing Order
LeetCode 1403. Minimum Subsequence in Non-Increasing Order
294.[LeetCode] Top Travellers
LeetCode 1407. Top Travellers
295.[LeetCode] String Matching in an Array
LeetCode 1408. String Matching in an Array
296.[LeetCode] Minimum Value to Get Positive Step by Step Sum
LeetCode 1413. Minimum Value to Get Positive Step by Step Sum
297.[LeetCode] Reformat The String
LeetCode 1417. Reformat The String
298.[LeetCode] Maximum Score After Splitting a String
LeetCode 1422. Maximum Score After Splitting a String
299.[LeetCode] Kids With the Greatest Number of Candies
LeetCode 1431. Kids With the Greatest Number of Candies
300.[LeetCode] Destination City
LeetCode 1436. Destination City
301.[LeetCode] Check If All 1's Are at Least Length K Places Away
LeetCode 1437. Check If All 1's Are at Least Length K Places Away
302.[LeetCode] Consecutive Characters
LeetCode 1446. Consecutive Characters
303.[LeetCode] Number of Students Doing Homework at a Given Time
LeetCode 1450. Number of Students Doing Homework at a Given Time