Citadel Interview Experience

Top citadel interview questions

S.NoInterview QuestionNumber of times candidates experienced this question in interviews
1First Repeating Element15245
2Find the Maximum Repeating Number in Array10053
3Best Time to Buy and Sell Stock LeetCode Solution8212
4A Product Array Puzzle7878
5Group Anagrams LeetCode Solution7078
6Asteroid Collision LeetCode Solution7036
7Product of Array Except Self LeetCode Solution6510
8Trapping Rain Water Leetcode Solution5869
9Word Ladder LeetCode Solution5805
10Coin Change 2 Leetcode Solution5756
11Insert Delete GetRandom O(1) Leetcode Solution5382
12Maximum Product of Three Numbers LeetCode Solution5333
13Printing brackets in Matrix Chain Multiplication Problem5248
14Time Based Key-Value Store LeetCode Solution5046
15Construct Binary Tree from Given Inorder and Preorder Traversals5034
16Find Triplet in Array With a Given Sum5011
17Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution4552
18Three way partitioning of an array around a given range4509
19Length of Longest valid Substring4424
20Count of index pairs with equal elements in an array4406
21Minimum operation to make all elements equal in array4050
22Count of Triplets With Sum Less than Given Value4029
23Check if a given array contains duplicate elements within k distance from each other3953
24Ugly Number II LeetCode Solution3947
25Longest subarray not having more than K distinct elements3916
26LRU Cache Implementation3908
27Kth Smallest Element in a BST Leetcode Solution3865
28Priority Queue using doubly linked list3850
29LRU Cache Leetcode Solution3804
30Difference between highest and least frequencies in an array3796
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