Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element131772Find the Maximum Repeating Number in Array85243Asteroid Collision LeetCode Solution54704Best Time to Buy and Sell Stock LeetCode Solution54395Product of Array Except Self LeetCode Solution52666A Product Array Puzzle52617Group Anagrams LeetCode Solution51578Coin Change 2 Leetcode Solution44959Trapping Rain Water Leetcode Solution431510Word Ladder LeetCode Solution423411Time Based Key-Value Store LeetCode Solution402312Insert Delete GetRandom O(1) Leetcode Solution398013Printing brackets in Matrix Chain Multiplication Problem397214Maximum Product of Three Numbers LeetCode Solution388315Find Triplet in Array With a Given Sum381016Construct Binary Tree from Given Inorder and Preorder Traversals348617Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution342318Count of index pairs with equal elements in an array339619Length of Longest valid Substring328320Three way partitioning of an array around a given range323421Count of Triplets With Sum Less than Given Value308322Minimum operation to make all elements equal in array302523Check if a given array contains duplicate elements within k distance from each other294524Longest subarray not having more than K distinct elements293725LRU Cache Implementation290626Ugly Number II LeetCode Solution287627LRU Cache Leetcode Solution287228Integer Break LeetCode Solution285929Difference between highest and least frequencies in an array281830Priority Queue using doubly linked list2788