LeetCode # Title Solution Difficulty Status 1 Two Sum Go Easy Completed 2 Add Two Numbers Go Medium Completed 3 Longest Substring Without Repeating Characters Go Medium Completed 5 Longest Palindromic Substring Go Medium In-progress 11 Container With Most Water Go Medium In-progress 15 3Sum Go Medium Completed 36 Valid Sudoku Go Medium Completed 49 Group Anagrams Go Medium Completed 121 Best Time to Buy and Sell Stock Go Easy Completed 125 Valid Palindrome Go Easy Completed 128 Longest Consecutive Sequence Go Medium Completed 167 Two Sum II - Input Array Is Sorted Go Medium Completed 217 Contains Duplicate Go Easy Completed 238 Product of Array Except Self Go Medium Completed 242 Valid Anagram Go Easy Completed 243 Shortest Word Distance🔒 Go Easy Completed 244 Shortest Word Distance II🔒 Go Medium In-progress 271 Encode and Decode Strings🔒 Go Medium In-progress 347 Top K Frequent Elements Go Medium Completed 359 Logger Rate Limiter🔒 Go Easy Completed 379 Design Phone Directory🔒 Go Medium In-progress 746 Min Cost Climbing Stairs Go Easy In-progress 1929 Concatenation of Array Go Easy Completed