Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element151822Find the Maximum Repeating Number in Array99933Best Time to Buy and Sell Stock LeetCode Solution81524A Product Array Puzzle77985Group Anagrams LeetCode Solution70016Asteroid Collision LeetCode Solution69807Product of Array Except Self LeetCode Solution64628Trapping Rain Water Leetcode Solution58109Word Ladder LeetCode Solution573310Coin Change 2 Leetcode Solution570611Insert Delete GetRandom O(1) Leetcode Solution529512Maximum Product of Three Numbers LeetCode Solution529013Printing brackets in Matrix Chain Multiplication Problem518514Construct Binary Tree from Given Inorder and Preorder Traversals499115Time Based Key-Value Store LeetCode Solution498616Find Triplet in Array With a Given Sum492317Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution450618Three way partitioning of an array around a given range444719Count of index pairs with equal elements in an array434920Length of Longest valid Substring434821Minimum operation to make all elements equal in array400222Count of Triplets With Sum Less than Given Value396723Check if a given array contains duplicate elements within k distance from each other389724Ugly Number II LeetCode Solution388025Longest subarray not having more than K distinct elements384326LRU Cache Implementation383427Kth Smallest Element in a BST Leetcode Solution380828Priority Queue using doubly linked list377629Difference between highest and least frequencies in an array375330LRU Cache Leetcode Solution3748