Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element146622Find the Maximum Repeating Number in Array96563Best Time to Buy and Sell Stock LeetCode Solution74044A Product Array Puzzle69675Asteroid Collision LeetCode Solution65886Group Anagrams LeetCode Solution65147Product of Array Except Self LeetCode Solution61898Coin Change 2 Leetcode Solution54079Trapping Rain Water Leetcode Solution532010Word Ladder LeetCode Solution531311Maximum Product of Three Numbers LeetCode Solution490012Printing brackets in Matrix Chain Multiplication Problem489613Insert Delete GetRandom O(1) Leetcode Solution487514Time Based Key-Value Store LeetCode Solution471015Find Triplet in Array With a Given Sum457616Construct Binary Tree from Given Inorder and Preorder Traversals455417Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution414018Count of index pairs with equal elements in an array409219Three way partitioning of an array around a given range408920Length of Longest valid Substring405821Minimum operation to make all elements equal in array376522Count of Triplets With Sum Less than Given Value367723Check if a given array contains duplicate elements within k distance from each other364124Ugly Number II LeetCode Solution363325Longest subarray not having more than K distinct elements357326LRU Cache Implementation354727Kth Smallest Element in a BST Leetcode Solution353028Integer Break LeetCode Solution349929Difference between highest and least frequencies in an array349530Priority Queue using doubly linked list3426