Amazon Leetcode questions

Here are the questions categorized as "Amazon" on Leetcode:

1 Two Sum 23.0% Easy
2 Add Two Numbers 23.0% Medium
3 Longest Substring Without Repeating Characters 21.9% Medium
5 Longest Palindromic Substring 23.0% Medium
8 String to Integer (atoi) 13.5% Easy
15 3Sum 18.8% Medium
17 Letter Combinations of a Phone Number 28.6% Medium
20 Valid Parentheses 29.3% Easy
21 Merge Two Sorted Lists 35.4% Easy
23 Merge k Sorted Lists 23.3% Hard
42 Trapping Rain Water 32.2% Hard
48 Rotate Image 34.6% Medium
49 Group Anagrams 27.4% Medium
78 Subsets 31.3% Medium
89 Gray Code 36.3% Medium
98 Validate Binary Search Tree 20.9% Medium
102 Binary Tree Level Order Traversal 32.7% Easy
121 Best Time to Buy and Sell Stock 36.0% Easy
126 Word Ladder II 13.6% Hard
127 Word Ladder 19.6% Medium
138 Copy List with Random Pointer 26.1% Hard
139 Word Break 25.2% Medium
141 Linked List Cycle 37.0% Medium
146 LRU Cache 15.8% Hard
155 Min Stack 22.0% Easy
160 Intersection of Two Linked Lists 30.2% Easy
167 Two Sum II – Input array is sorted 47.8% Medium
186 Reverse Words in a String II 29.1% Medium
199 Binary Tree Right Side View 34.3% Medium
200 Number of Islands 27.6% Medium
204 Count Primes 24.2% Easy
206 Reverse Linked List 39.4% Easy
215 Kth Largest Element in an Array 33.1% Medium
234 Palindrome Linked List 28.0% Easy
235 Lowest Common Ancestor of a Binary Search Tree 37.7% Easy
236 Lowest Common Ancestor of a Binary Tree 28.8% Medium
238 Product of Array Except Self 42.6% Medium
239 Sliding Window Maximum 27.3% Hard
240 Search a 2D Matrix II 34.4% Medium
242 Valid Anagram 41.7% Easy
297 Serialize and Deserialize Binary Tree 27.8% Hard