Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element147502Find the Maximum Repeating Number in Array97083Best Time to Buy and Sell Stock LeetCode Solution75174A Product Array Puzzle70935Asteroid Collision LeetCode Solution66356Group Anagrams LeetCode Solution66037Product of Array Except Self LeetCode Solution62548Coin Change 2 Leetcode Solution54719Trapping Rain Water Leetcode Solution543310Word Ladder LeetCode Solution537911Maximum Product of Three Numbers LeetCode Solution499012Insert Delete GetRandom O(1) Leetcode Solution494013Printing brackets in Matrix Chain Multiplication Problem493014Time Based Key-Value Store LeetCode Solution474915Construct Binary Tree from Given Inorder and Preorder Traversals463216Find Triplet in Array With a Given Sum462517Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution419918Three way partitioning of an array around a given range414719Count of index pairs with equal elements in an array412620Length of Longest valid Substring411221Minimum operation to make all elements equal in array379822Count of Triplets With Sum Less than Given Value371723Check if a given array contains duplicate elements within k distance from each other368124Ugly Number II LeetCode Solution365825Longest subarray not having more than K distinct elements360326LRU Cache Implementation358927Kth Smallest Element in a BST Leetcode Solution358428Integer Break LeetCode Solution353429Difference between highest and least frequencies in an array353230Priority Queue using doubly linked list3473