•PRACTICE

Sorting Interview Questions

45 Sorting problems asked across FAANG and top tech companies. Approach hints, optimal solutions, and related problems.

Filter by company

Clear all ✕
Adobe (2)Amazon (11)Apple (7)Atlassian (8)Databricks (2)Google (10)Meta (6)Microsoft (7)Netflix (5)Oracle (7)Rippling (2)Salesforce (10)Uber (9)Walmart (7)

Filter by topic

Array (178)Backtracking (17)BFS (23)Binary Search (34)Binary Tree (13)Bit Manipulation (16)Breadth-First Search (20)Counting (7)Data Stream (6)Database (6)Depth-First Search (27)Design (37)DFS (24)Divide and Conquer (7)Doubly-Linked List (5)DP (10)Dynamic Programming (39)Graph (6)Graph Theory (13)Greedy (31)Hash Table (87)Heap (12)Heap (Priority Queue) (13)Linked List (15)Math (32)Matrix (22)Monotonic Stack (6)Ordered Set (8)Prefix Sum (11)Queue (10)Recursion (7)Simulation (11)Sliding Window (21)Sorting (45)Stack (24)String (85)Topological Sort (6)Tree (30)Trie (10)Two Pointers (30)Union-Find (13)
🔒

to save your progress.

✓ 0ProblemDifficultyCompaniesBreakdown / SolutionLeetCode
Merge IntervalsMedium11 companiesView breakdown →
Group AnagramsMedium8 companiesView breakdown →
3SumMedium8 companiesView breakdown →
Meeting Rooms IIMedium8 companiesView breakdown →
Sort ColorsMedium3 companiesView breakdown →
Merge Sorted ArrayEasy4 companiesView breakdown →
Kth Largest Element in an ArrayMedium2 companiesView breakdown →
Squares of a Sorted ArrayEasy2 companiesView breakdown →
Majority ElementEasy3 companiesView breakdown →
Maximum Number of Points from Grid QueriesHard1 companiesView breakdown →
Meeting Rooms IIIHard2 companiesView breakdown →
Contains DuplicateEasy2 companiesView breakdown →
3Sum ClosestMedium1 companiesView breakdown →
4SumMedium1 companiesView breakdown →
Advantage ShuffleMedium1 companiesView breakdown →
Binary Tree Vertical Order TraversalMedium1 companiesView breakdown →
Contains Duplicate IIIHard1 companiesView breakdown →
Design In-Memory File SystemHard1 companiesView breakdown →
Largest NumberMEDIUM1 companiesView breakdown →
Longest String ChainMEDIUM1 companiesView breakdown →
Find K Closest ElementsMEDIUM1 companiesView breakdown →
High-Access EmployeesMEDIUM1 companiesView breakdown →
Minimum Absolute DifferenceEASY1 companiesView breakdown →
Maximum Product of Three NumbersEASY1 companiesView breakdown →
Put Marbles in BagsHARD1 companiesView breakdown →
Rank Teams by VotesMEDIUM1 companiesView breakdown →
Reorganize StringMEDIUM1 companiesView breakdown →
Minimum Cost to Hire K WorkersHARD1 companiesView breakdown →
Maximum Palindromes After OperationsMEDIUM1 companiesView breakdown →
Maximum Team Size with Overlapping IntervalsMEDIUM1 companiesView breakdown →
Minimum Removals to Balance ArrayMEDIUM1 companiesView breakdown →
Maximum Coins From K Consecutive BagsMEDIUM1 companiesView breakdown →
Maximize Sum of Weights after Edge RemovalsHARD1 companiesView breakdown →
Number of Flowers in Full BloomHARD1 companiesView breakdown →
Number of Perfect PairsMEDIUM1 companiesView breakdown →
Sort an ArrayMEDIUM1 companiesView breakdown →
Set MismatchEASY1 companiesView breakdown →
Top K Frequent WordsMEDIUM1 companiesView breakdown →
The Earliest Moment When Everyone Become FriendsMEDIUM1 companiesView breakdown →
Make Lexicographically Smallest Array by Swapping ElementsMEDIUM1 companiesView breakdown →
Reconstruct ItineraryHARD1 companiesView breakdown →
Russian Doll EnvelopesHARD1 companiesView breakdown →
Vertical Order Traversal of a Binary TreeHARD1 companiesView breakdown →
Valid AnagramEasy4 companiesView breakdown →
Missing NumberEasy4 companiesView breakdown →

Practice with a Mock Interview

Solve these Sorting problems under real interview pressure with our AI interviewer.

Start Mock Interview →