Citadel Interview Experience

Top citadel interview questions

S.No Interview Question Number of times candidates experienced this question in interviews
1First Repeating Element5229
2Find the Maximum Repeating Number in Array4430
3Find Triplet in Array With a Given Sum2323
4A Product Array Puzzle2240
5Count of Triplets With Sum Less than Given Value1768
6Best Time to Buy and Sell Stock LeetCode Solution1755
7Printing brackets in Matrix Chain Multiplication Problem1747
8Coin Change 2 Leetcode Solution1681
9Asteroid Collision LeetCode Solution1622
10Trapping Rain Water Leetcode Solution1569
11Word Ladder LeetCode Solution1535
12Maximum Product of Three Numbers LeetCode Solution1516
13Product of Array Except Self LeetCode Solution1491
14Length of Longest valid Substring1487
15Group Anagrams LeetCode Solution1466
16Minimum operation to make all elements equal in array1387
17Count of index pairs with equal elements in an array1359
18Difference between highest and least frequencies in an array1325
19Three way partitioning of an array around a given range1316
20Check if all Rows of a Matrix are Circular Rotations of Each Other1304
21Time Based Key-Value Store LeetCode Solution1303
22Priority Queue using doubly linked list1266
23LRU Cache Implementation1265
24Construct Binary Tree from Given Inorder and Preorder Traversals1262
25Longest subarray not having more than K distinct elements1189
26Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution1123
27Insert Delete GetRandom O(1) Leetcode Solution1105
28Check if a given array contains duplicate elements within k distance from each other1103
29Find Median from Data Stream LeetCode Solution1075
30Increasing Subsequence of Length three with Maximum Product1070
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