American Express Interview ExperienceTop american-express interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1Valid Anagram Leetcode Solution81492Group Anagrams LeetCode Solution66033Product of Array Except Self LeetCode Solution62544Reducing Dishes LeetCode Solution60925Implementation of Deque using Doubly Linked List57606Subarray with Given Sum53747Same Tree LeetCode Solution52258Subarray Sum Equals k48379Remove Nth Node From End of List Leetcode Solution426910Maximum Length of a Concatenated String with Unique Characters Leetcode Solution375911Convert a normal BST to Balanced BST354912Sliding Window Maximum LeetCode Solution336913Maximum Sum of Non Consecutive Elements309514Smallest Multiple of a Given Number302215Isomorphic Strings LeetCode Solution268216Find the point where a monotonically increasing function becomes positive first time257417Check whether a given Binary Tree is Complete or not250318Check if a queue can be sorted into another queue using a stack238419Convert a String that is Repetition of a Substring of Length K2168