Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element130612Find the Maximum Repeating Number in Array84493Asteroid Collision LeetCode Solution53974Best Time to Buy and Sell Stock LeetCode Solution53165Product of Array Except Self LeetCode Solution52036A Product Array Puzzle51867Group Anagrams LeetCode Solution50668Coin Change 2 Leetcode Solution44339Trapping Rain Water Leetcode Solution425510Word Ladder LeetCode Solution415111Time Based Key-Value Store LeetCode Solution394812Printing brackets in Matrix Chain Multiplication Problem392613Insert Delete GetRandom O(1) Leetcode Solution390914Maximum Product of Three Numbers LeetCode Solution382015Find Triplet in Array With a Given Sum376616Construct Binary Tree from Given Inorder and Preorder Traversals339117Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution335618Count of index pairs with equal elements in an array333419Length of Longest valid Substring323320Three way partitioning of an array around a given range315221Count of Triplets With Sum Less than Given Value303922Minimum operation to make all elements equal in array297923Check if a given array contains duplicate elements within k distance from each other288024Longest subarray not having more than K distinct elements287425LRU Cache Implementation284326LRU Cache Leetcode Solution283727Integer Break LeetCode Solution282228Ugly Number II LeetCode Solution282029Difference between highest and least frequencies in an array275530Priority Queue using doubly linked list2745