American Express Interview ExperienceTop american-express interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1Valid Anagram Leetcode Solution75632Group Anagrams LeetCode Solution61143Product of Array Except Self LeetCode Solution59414Reducing Dishes LeetCode Solution57765Implementation of Deque using Doubly Linked List54166Subarray with Given Sum51297Same Tree LeetCode Solution49358Subarray Sum Equals k45589Remove Nth Node From End of List Leetcode Solution392310Maximum Length of a Concatenated String with Unique Characters Leetcode Solution350611Convert a normal BST to Balanced BST330912Sliding Window Maximum LeetCode Solution306413Maximum Sum of Non Consecutive Elements289714Smallest Multiple of a Given Number278715Isomorphic Strings LeetCode Solution243616Find the point where a monotonically increasing function becomes positive first time239817Check whether a given Binary Tree is Complete or not223718Check if a queue can be sorted into another queue using a stack218019Convert a String that is Repetition of a Substring of Length K1989