American Express Interview ExperienceTop american-express interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1Valid Anagram Leetcode Solution88002Group Anagrams LeetCode Solution71663Product of Array Except Self LeetCode Solution65834Reducing Dishes LeetCode Solution64335Implementation of Deque using Doubly Linked List62006Subarray with Given Sum58307Same Tree LeetCode Solution55338Subarray Sum Equals k53219Remove Nth Node From End of List Leetcode Solution466610Maximum Length of a Concatenated String with Unique Characters Leetcode Solution406511Convert a normal BST to Balanced BST386812Sliding Window Maximum LeetCode Solution381713Maximum Sum of Non Consecutive Elements339214Smallest Multiple of a Given Number335815Isomorphic Strings LeetCode Solution303516Find the point where a monotonically increasing function becomes positive first time290817Check whether a given Binary Tree is Complete or not282118Check if a queue can be sorted into another queue using a stack261219Convert a String that is Repetition of a Substring of Length K2457