leetcode

Solutions

• 1. Two sum
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• 2. Add Two Numbers
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• 3. Longest Substring Without Repeating Characters
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• 4. Median of Two Sorted Arrays
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• 5. Longest Palindromic Substring
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• 7. Reverse Integer
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• 8. String to Integer (atoi)
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• 9. Palindrome number
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• 13. Roman to integer
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• 14. Longest common prefix
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• 20. Valid parentheses
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• 21. Merge two sorted lists
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• 26. Remove duplicates from sorted array
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• 27. Remove element
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• 28. Find the index of the first occurrence in a string
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• 35. Search insert position
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• 58. Length of last word
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• 66. Plus one
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• 67. Add binary
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• 69. Square root
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• 70. Climbing stairs
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• 83. Remove duplicates from sorted list
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• 88. Merge sorted array
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• 94. Binary tree inorder traversal
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• 100. Same tree
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• 101. Symmetric tree
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• 104. Maximum depth of binary tree
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• 108. Convert sorted array to binary search tree
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• 110. Balanced binary tree
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• 111. Minimum depth of binary tree
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• 112. Path sum
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• 118. Pascal's triangle
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• 121. Best Time to Buy and Sell Stock
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• 125. Valid Palindrome
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• 136. Single Number
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• 141. Linked List Cycle
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• 160. Intersection of Two Linked Lists
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• 163. Missing Ranges
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• 169. Majority Element
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• 171. Excel Sheet Column Number
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• 190. Reverse Bits
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• 191. Number of 1 Bits
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• 202. Happy Number
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• 205. Isomorphic Strings
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• 206. Reverse Linked List
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• 217. Contains Duplicate
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• 228. Summary Ranges
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• 234. Palindrome Linked List
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• 242. Valid Anagram
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• 268. Missing Number
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• 283. Move Zeroes
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• 326. Power of Three
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• 344. Reverse String
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• 350. Intersection of Two Arrays II
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