Leetcode Solutions

By Gurjot Singh

Optimal solutions to problems provided on Leetcode Platform. Language Used: C++.

Name		Name	Last commit message	Last commit date
Latest commit History 99 Commits
.gitignore		.gitignore
088.mergeSortedArray.cpp		088.mergeSortedArray.cpp
100. Same Tree.cpp		100. Same Tree.cpp
101. Symmetric Tree.cpp		101. Symmetric Tree.cpp
1011. Capacity To Ship Packages Within D Days.cpp		1011. Capacity To Ship Packages Within D Days.cpp
102. Binary Tree Level Order Traversal.cpp		102. Binary Tree Level Order Traversal.cpp
1021. Remove Outermost Parentheses.cpp		1021. Remove Outermost Parentheses.cpp
1022. Sum of Root To Leaf Binary Numbers.cpp		1022. Sum of Root To Leaf Binary Numbers.cpp
103. Binary Tree Zigzag Level Order Traversal.cpp		103. Binary Tree Zigzag Level Order Traversal.cpp
1031. Maximum Sum of Two Non-Overlapping Subarrays.cpp		1031. Maximum Sum of Two Non-Overlapping Subarrays.cpp
1038. Binary Search Tree to Greater Sum Tree.cpp		1038. Binary Search Tree to Greater Sum Tree.cpp
104. Maximum Depth of Binary Tree.cpp		104. Maximum Depth of Binary Tree.cpp
1046. Last Stone Weight.cpp		1046. Last Stone Weight.cpp
1047. Remove All Adjacent Duplicates In String.cpp		1047. Remove All Adjacent Duplicates In String.cpp
105. Construct Binary Tree from Preorder and Inorder Traversal.cpp		105. Construct Binary Tree from Preorder and Inorder Traversal.cpp
1052. Grumpy Bookstore Owner.cpp		1052. Grumpy Bookstore Owner.cpp
106. Construct Binary Tree from Inorder and Postorder Traversal.cpp		106. Construct Binary Tree from Inorder and Postorder Traversal.cpp
1064. Fixed Point.cpp		1064. Fixed Point.cpp
1065. Index Pairs of a String.cpp		1065. Index Pairs of a String.cpp
1066. Campus Bikes II.cpp		1066. Campus Bikes II.cpp
107. Binary Tree Level Order Traversal II.cpp		107. Binary Tree Level Order Traversal II.cpp
1071. Greatest Common Divisor of Strings.cpp		1071. Greatest Common Divisor of Strings.cpp
108. Convert Sorted Array to Binary Search Tree.cpp		108. Convert Sorted Array to Binary Search Tree.cpp
1089. Duplicate Zeros.cpp		1089. Duplicate Zeros.cpp
110. Balanced Binary Tree.cpp		110. Balanced Binary Tree.cpp
111. Minimum Depth of Binary Tree.cpp		111. Minimum Depth of Binary Tree.cpp
1118. Number of Days in a Month.cpp		1118. Number of Days in a Month.cpp
1119. Remove Vowels from a String.cpp		1119. Remove Vowels from a String.cpp
112. Path Sum.cpp		112. Path Sum.cpp
1120. Maximum Average Subtree.cpp		1120. Maximum Average Subtree.cpp
1121. Divide Array Into Increasing Sequences.cpp		1121. Divide Array Into Increasing Sequences.cpp
1143. Longest Common Subsequence.cpp		1143. Longest Common Subsequence.cpp
1154. Day of the Year.cpp		1154. Day of the Year.cpp
1155. Number of Dice Rolls With Target Sum.cpp		1155. Number of Dice Rolls With Target Sum.cpp
116. Populating Next Right Pointers in Each Node.cpp		116. Populating Next Right Pointers in Each Node.cpp
1169. Invalid Transactions.cpp		1169. Invalid Transactions.cpp
118.Pascal'sTriangle.cpp		118.Pascal'sTriangle.cpp
119.Pascal'sTriangleII.cpp		119.Pascal'sTriangleII.cpp
12. Integer to Roman.cpp		12. Integer to Roman.cpp
121. Best Time to Buy and Sell Stock.cpp		121. Best Time to Buy and Sell Stock.cpp
122. Best Time to Buy and Sell Stock II.cpp		122. Best Time to Buy and Sell Stock II.cpp
124. Binary Tree Maximum Path Sum.cpp		124. Binary Tree Maximum Path Sum.cpp
125. Valid Palindrome.cpp		125. Valid Palindrome.cpp
128. Longest Consecutive Sequence.cpp		128. Longest Consecutive Sequence.cpp
13. Roman to Integer.cpp		13. Roman to Integer.cpp
131. Palindrome Partitioning.cpp		131. Palindrome Partitioning.cpp
134. Gas Station.cpp		134. Gas Station.cpp
138. Copy List with Random Pointer.cpp		138. Copy List with Random Pointer.cpp
14. Longest Common Prefix.cpp		14. Longest Common Prefix.cpp
143. Reorder List.cpp		143. Reorder List.cpp
144. Binary Tree Preorder Traversal.cpp		144. Binary Tree Preorder Traversal.cpp
145. Binary Tree Postorder Traversal.cpp		145. Binary Tree Postorder Traversal.cpp
15. 3Sum.cpp		15. 3Sum.cpp
151. Reverse Words in a String.cpp		151. Reverse Words in a String.cpp
162. Find Peak Element.cpp		162. Find Peak Element.cpp
164. Maximum Gap.cpp		164. Maximum Gap.cpp
165. Compare Version Numbers.cpp		165. Compare Version Numbers.cpp
167.TwoSumII-InputArrayIsSorted.cpp		167.TwoSumII-InputArrayIsSorted.cpp
169.MajorityElement.cpp		169.MajorityElement.cpp
17. Letter Combinations of a Phone Number.cpp		17. Letter Combinations of a Phone Number.cpp
172. Factorial Trailing Zeroes.cpp		172. Factorial Trailing Zeroes.cpp
175. Combine Two Tables (SQL)		175. Combine Two Tables (SQL)
176. Second Highest Salary(SQL)		176. Second Highest Salary(SQL)
18. 4Sum.cpp		18. 4Sum.cpp
181. Employees Earning More Than Their Managers (SQL)		181. Employees Earning More Than Their Managers (SQL)
182. Duplicate Emails (SQL)		182. Duplicate Emails (SQL)
183. Customers Who Never Order (SQL)		183. Customers Who Never Order (SQL)
189.RotateArray.cpp		189.RotateArray.cpp
19. Remove Nth Node From End of List.cpp		19. Remove Nth Node From End of List.cpp
190. Reverse Bits.cpp		190. Reverse Bits.cpp
191. Number of 1 Bits.cpp		191. Number of 1 Bits.cpp
199. Binary Tree Right Side View.cpp		199. Binary Tree Right Side View.cpp
2. Add Two Numbers.cpp		2. Add Two Numbers.cpp
20. Valid Parentheses.cpp		20. Valid Parentheses.cpp
202. Happy Number.cpp		202. Happy Number.cpp
205. Isomorphic Strings.cpp		205. Isomorphic Strings.cpp
214. Shortest Palindrome.cpp		214. Shortest Palindrome.cpp
216. Combination Sum III.cpp		216. Combination Sum III.cpp
217.ContainsDuplicate.cpp		217.ContainsDuplicate.cpp
219.Contains Duplicate_II.cpp		219.Contains Duplicate_II.cpp
225. Implement Stack using Queues.cpp		225. Implement Stack using Queues.cpp
226. Invert Binary Tree.cpp		226. Invert Binary Tree.cpp
229. Majority Element II.cpp		229. Majority Element II.cpp
231. Power of Two.cpp		231. Power of Two.cpp
232. Implement Queue using Stacks.cpp		232. Implement Queue using Stacks.cpp
235. Lowest Common Ancestor of a Binary Search Tree.cpp		235. Lowest Common Ancestor of a Binary Search Tree.cpp
236. Lowest Common Ancestor of a Binary Tree.cpp		236. Lowest Common Ancestor of a Binary Tree.cpp
238. Product of Array Except Self.cpp		238. Product of Array Except Self.cpp
239. Sliding Window Maximum.cpp		239. Sliding Window Maximum.cpp
24. Swap Nodes in Pairs.cpp		24. Swap Nodes in Pairs.cpp
242. Valid Anagram.cpp		242. Valid Anagram.cpp
25. Reverse Nodes in k-Group.cpp		25. Reverse Nodes in k-Group.cpp
258. Add Digits.cpp		258. Add Digits.cpp
260. Single Number III.cpp		260. Single Number III.cpp
28. Implement strStr().cpp		28. Implement strStr().cpp
29. Divide Two Integers.cpp		29. Divide Two Integers.cpp
292. Nim Game.cpp		292. Nim Game.cpp
295. Find Median from Data Stream.cpp		295. Find Median from Data Stream.cpp
297. Serialize and Deserialize Binary Tree.cpp		297. Serialize and Deserialize Binary Tree.cpp
3. Longest Substring Without Repeating Characters.cpp		3. Longest Substring Without Repeating Characters.cpp

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