leetcode

neetcode.io | Arrays & Hashing

• Leetcode link
• Neetcode link

Problems

• 217. Contains Duplicate
• 242. Valid Anagram
• 1. Two Sum
• 49. Group Anagrams
• 347. Top K Frequent Elements
• 238. Product of Array Except Self
• 271. Encode and Decode Strings
• 36. Valid Sudoku
• 128. Longest Consecutive Sequence