LeetCode Questions Solution

1. 2144. Minimum Cost of Buying Candies With Discount
150
2. 1503. Last Moment Before All Ants Fall Out of a Plank
150
3. 2409. Count Days Spent Together
150
4. 242. Valid Anagram
158
5. 236. Lowest Common Ancestor of a Binary Tree
160
6. 1881. Maximum Value after Insertion
161
7. 1290. Convert Binary Number in a Linked List to Integer
164
8. 275. H-Index II
166
9. 36. Valid Sudoku
166
10. 628. Maximum Product of Three Numbers
166
11. 494. Target Sum
167
12. 378. Kth Smallest Element in a Sorted Matrix
168
13. 561. Array Partition I
169
14. 516. Longest Palindromic Subsequence
170
15. 1299. Replace Elements with Greatest Element on Right Side
170
16. 436. Find Right Interval
172
17. 141. Linked List Cycle
172
18. 1389. Create Target Array in the Given Order
173
19. 387. First Unique Character in a String
173
20. 380. Insert Delete GetRandom O(1)
173
21. 237. Delete Node in a Linked List
173
22. 307. Range Sum Query - Mutable
173
23. 169. Majority Element
174
24. 430. Flatten a Multilevel Doubly Linked List
174
25. 130. Surrounded Regions
175
26. 1481. Least Number of Unique Integers after K Removals
178
27. 328. Odd Even Linked List
178
28. 229. Majority Element II
178
29. 394. Decode String
178
30. 672. Richest Customer Wealth
179
31. 332. Reconstruct Itinerary
180
32. 53. Maximum Subarray
181
33. 1217. Minimum Cost to Move Chips to The Same Position
181
34. 167. Two Sum II - Input array is sorted
181
35. 71. Simplify Path
181
36. 952. Largest Component Size by Common Factor
182
37. 1748. Sum of Unique Elements
182
38. 83. Remove Duplicates from Sorted List
182
39. 62. Unique Paths
183
40. 34. Find First and Last Position of Element in Sorted Array
183
41. 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
183
42. 1480. Running Sum of 1d Array
183
43. 1268. Search Suggestions System
184
44. 123. Best Time to Buy and Sell Stock III
184
45. 821. Shortest Distance to a Character
184
46. 739. Daily Temperatures
184
47. 33. Search in Rotated Sorted Array
185
48. 2149. Rearrange Array Elements by Sign
185
49. 97. Interleaving String
185
50. 347. Top K Frequent Elements
185
51. 215. Kth Largest Element in an Array
186
52. 1525. Number of Good Ways to Split a String
186
53. 119. Pascal's Triangle II
186
54. 844. Backspace String Compare
186
55. 260. Single Number III
186
56. 461. Hamming Distance
186
57. 785. Is Graph Bipartite
186
58. 137. Single Number II
186
59. 415. Add Strings
186
60. 101. Symmetric Tree
187
61. 925. Long Pressed Name
187
62. 1155. Number of Dice Rolls With Target Sum
187
63. 42. Trapping Rain Water
187
64. 1047. Remove All Adjacent Duplicates In String
187
65. 771. Jewels and Stones
187
66. 144. Binary Tree Preorder Traversal
187
67. 543. Diameter of Binary Tree
188
68. 392. Is Subsequence
188
69. 1200. Minimum Absolute Difference
189
70. 337. House Robber III
189
71. 902. Numbers At Most N Given Digit Set
189
72. 977. Squares of a Sorted Array
189
73. 450. Delete Node in a BST
189
74. 841. Keys and Rooms
190
75. 17. Letter Combinations of a Phone Number
190
76. 1678. Goal Parser Interpretation
190
77. 1512. Number of Good Pairs
190
78. 518. Coin Change 2
190
79. 832. Flipping an Image
191
80. 50. Pow(x, n)
191
81. 733. Flood Fill
191
82. 1365. How Many Numbers Are Smaller Than the Current Number
191
83. 987. Vertical Order Traversal of a Binary Tree
191
84. 515. Find Largest Value in Each Tree Row
191
85. 1832. Check if the Sentence Is Pangram
191
86. 279. Perfect Squares
191
87. 1035. Uncrossed Lines
191
88. 695. Max Area of Island
191
89. 39. Combination Sum
191
90. 1313. Decompress Run-Length Encoded List
191
91. 75. Sort Colors
191
92. 1704. Determine if String Halves Are Alike
192
93. 1768. Merge Strings Alternately
192
94. 174. Dungeon Game
192
95. 797. All Paths From Source to Target
192
96. 240. Search a 2D Matrix II
192
97. 2150. Find All Lonely Numbers in the Array
192
98. 416. Partition Equal Subset Sum
192
99. 1221. Split a String in Balanced Strings
192
100. 153. Find Minimum in Rotated Sorted Array
192

LeetCode Questions Solution

1. 2144. Minimum Cost of Buying Candies With Discount

2. 1503. Last Moment Before All Ants Fall Out of a Plank

3. 2409. Count Days Spent Together

4. 242. Valid Anagram

5. 236. Lowest Common Ancestor of a Binary Tree

6. 1881. Maximum Value after Insertion

7. 1290. Convert Binary Number in a Linked List to Integer

8. 275. H-Index II

9. 36. Valid Sudoku

10. 628. Maximum Product of Three Numbers

11. 494. Target Sum

12. 378. Kth Smallest Element in a Sorted Matrix

13. 561. Array Partition I

14. 516. Longest Palindromic Subsequence

15. 1299. Replace Elements with Greatest Element on Right Side

16. 436. Find Right Interval

17. 141. Linked List Cycle

18. 1389. Create Target Array in the Given Order

19. 387. First Unique Character in a String

20. 380. Insert Delete GetRandom O(1)

21. 237. Delete Node in a Linked List

22. 307. Range Sum Query - Mutable

23. 169. Majority Element

24. 430. Flatten a Multilevel Doubly Linked List

25. 130. Surrounded Regions

26. 1481. Least Number of Unique Integers after K Removals

27. 328. Odd Even Linked List

28. 229. Majority Element II

29. 394. Decode String

30. 672. Richest Customer Wealth

31. 332. Reconstruct Itinerary

32. 53. Maximum Subarray

33. 1217. Minimum Cost to Move Chips to The Same Position

34. 167. Two Sum II - Input array is sorted

35. 71. Simplify Path

36. 952. Largest Component Size by Common Factor

37. 1748. Sum of Unique Elements

38. 83. Remove Duplicates from Sorted List

39. 62. Unique Paths

40. 34. Find First and Last Position of Element in Sorted Array

41. 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts

42. 1480. Running Sum of 1d Array

43. 1268. Search Suggestions System

44. 123. Best Time to Buy and Sell Stock III

45. 821. Shortest Distance to a Character

46. 739. Daily Temperatures

47. 33. Search in Rotated Sorted Array

48. 2149. Rearrange Array Elements by Sign

49. 97. Interleaving String

50. 347. Top K Frequent Elements

51. 215. Kth Largest Element in an Array

52. 1525. Number of Good Ways to Split a String

53. 119. Pascal's Triangle II

54. 844. Backspace String Compare

55. 260. Single Number III

56. 461. Hamming Distance

57. 785. Is Graph Bipartite

58. 137. Single Number II

59. 415. Add Strings

60. 101. Symmetric Tree

61. 925. Long Pressed Name

62. 1155. Number of Dice Rolls With Target Sum

63. 42. Trapping Rain Water

64. 1047. Remove All Adjacent Duplicates In String

65. 771. Jewels and Stones

66. 144. Binary Tree Preorder Traversal

67. 543. Diameter of Binary Tree

68. 392. Is Subsequence

69. 1200. Minimum Absolute Difference

70. 337. House Robber III

71. 902. Numbers At Most N Given Digit Set

72. 977. Squares of a Sorted Array

73. 450. Delete Node in a BST

74. 841. Keys and Rooms

75. 17. Letter Combinations of a Phone Number

76. 1678. Goal Parser Interpretation

77. 1512. Number of Good Pairs

78. 518. Coin Change 2

79. 832. Flipping an Image