American Express Interview ExperienceTop american-express interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1Valid Anagram Leetcode Solution65532Reducing Dishes LeetCode Solution53783Product of Array Except Self LeetCode Solution52744Group Anagrams LeetCode Solution51625Implementation of Deque using Doubly Linked List48516Subarray with Given Sum46377Same Tree LeetCode Solution42048Subarray Sum Equals k39209Remove Nth Node From End of List Leetcode Solution324510Maximum Length of a Concatenated String with Unique Characters Leetcode Solution294911Convert a normal BST to Balanced BST281712Sliding Window Maximum LeetCode Solution246513Maximum Sum of Non Consecutive Elements244614Smallest Multiple of a Given Number237615Find the point where a monotonically increasing function becomes positive first time205916Isomorphic Strings LeetCode Solution201417Check if a queue can be sorted into another queue using a stack179418Check whether a given Binary Tree is Complete or not176219Convert a String that is Repetition of a Substring of Length K1651