American Express Interview ExperienceTop american-express interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1Valid Anagram Leetcode Solution86182Group Anagrams LeetCode Solution69623Product of Array Except Self LeetCode Solution64374Reducing Dishes LeetCode Solution63005Implementation of Deque using Doubly Linked List60426Subarray with Given Sum56657Same Tree LeetCode Solution54088Subarray Sum Equals k51139Remove Nth Node From End of List Leetcode Solution455910Maximum Length of a Concatenated String with Unique Characters Leetcode Solution393211Convert a normal BST to Balanced BST373412Sliding Window Maximum LeetCode Solution364513Maximum Sum of Non Consecutive Elements326014Smallest Multiple of a Given Number321215Isomorphic Strings LeetCode Solution288016Find the point where a monotonically increasing function becomes positive first time275317Check whether a given Binary Tree is Complete or not269218Check if a queue can be sorted into another queue using a stack251519Convert a String that is Repetition of a Substring of Length K2324