Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element147482Find the Maximum Repeating Number in Array97073Best Time to Buy and Sell Stock LeetCode Solution75174A Product Array Puzzle70925Asteroid Collision LeetCode Solution66336Group Anagrams LeetCode Solution66027Product of Array Except Self LeetCode Solution62538Coin Change 2 Leetcode Solution54709Trapping Rain Water Leetcode Solution543010Word Ladder LeetCode Solution537811Maximum Product of Three Numbers LeetCode Solution498912Insert Delete GetRandom O(1) Leetcode Solution494013Printing brackets in Matrix Chain Multiplication Problem492914Time Based Key-Value Store LeetCode Solution474815Construct Binary Tree from Given Inorder and Preorder Traversals463116Find Triplet in Array With a Given Sum462317Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution419918Three way partitioning of an array around a given range414619Count of index pairs with equal elements in an array412520Length of Longest valid Substring411221Minimum operation to make all elements equal in array379722Count of Triplets With Sum Less than Given Value371623Check if a given array contains duplicate elements within k distance from each other368024Ugly Number II LeetCode Solution365625Longest subarray not having more than K distinct elements360226LRU Cache Implementation358827Kth Smallest Element in a BST Leetcode Solution358328Integer Break LeetCode Solution353329Difference between highest and least frequencies in an array353130Priority Queue using doubly linked list3472