Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element138392Find the Maximum Repeating Number in Array90443Best Time to Buy and Sell Stock LeetCode Solution62994A Product Array Puzzle60275Asteroid Collision LeetCode Solution60026Group Anagrams LeetCode Solution57547Product of Array Except Self LeetCode Solution57058Coin Change 2 Leetcode Solution48989Trapping Rain Water Leetcode Solution477710Word Ladder LeetCode Solution472811Insert Delete GetRandom O(1) Leetcode Solution444112Printing brackets in Matrix Chain Multiplication Problem438813Time Based Key-Value Store LeetCode Solution437414Maximum Product of Three Numbers LeetCode Solution425715Find Triplet in Array With a Given Sum415316Construct Binary Tree from Given Inorder and Preorder Traversals397617Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution376218Count of index pairs with equal elements in an array370619Three way partitioning of an array around a given range365520Length of Longest valid Substring363221Minimum operation to make all elements equal in array334322Count of Triplets With Sum Less than Given Value333423Longest subarray not having more than K distinct elements329524Check if a given array contains duplicate elements within k distance from each other326025LRU Cache Implementation317626Ugly Number II LeetCode Solution317527Difference between highest and least frequencies in an array317228Integer Break LeetCode Solution316029LRU Cache Leetcode Solution314030Priority Queue using doubly linked list3131