Citadel Interview ExperienceTop citadel interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1First Repeating Element148612Find the Maximum Repeating Number in Array97643Best Time to Buy and Sell Stock LeetCode Solution77244A Product Array Puzzle73345Asteroid Collision LeetCode Solution67166Group Anagrams LeetCode Solution67037Product of Array Except Self LeetCode Solution63028Trapping Rain Water Leetcode Solution55279Coin Change 2 Leetcode Solution552510Word Ladder LeetCode Solution547411Maximum Product of Three Numbers LeetCode Solution506112Insert Delete GetRandom O(1) Leetcode Solution501813Printing brackets in Matrix Chain Multiplication Problem497614Time Based Key-Value Store LeetCode Solution479815Construct Binary Tree from Given Inorder and Preorder Traversals475616Find Triplet in Array With a Given Sum469817Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution426918Three way partitioning of an array around a given range422819Count of index pairs with equal elements in an array418120Length of Longest valid Substring418021Minimum operation to make all elements equal in array384122Count of Triplets With Sum Less than Given Value375823Check if a given array contains duplicate elements within k distance from each other372124Ugly Number II LeetCode Solution371525Longest subarray not having more than K distinct elements364126LRU Cache Implementation364127Kth Smallest Element in a BST Leetcode Solution363728Difference between highest and least frequencies in an array358529Integer Break LeetCode Solution358130LRU Cache Leetcode Solution3525