Amazon DS & Algo Round Interview Questions


Amazon DS & Algo Round Interview Questions
This list contains commonly asked DSA questions in Amazon for SDE roles, including SDET and intern positions. It also includes questions from Bar Raiser rounds.

If you have Amazon interviews already scheduled, then this list is for you. Use it for final preparation of your DSA interview.

Idea is to solve Amazon tagged questions at least 2–3 times, rather than solving a lot of new questions just once.

Doing questions multiple times will help you understand the patterns and when you see a question which is rephrased differently but has same solution, you will be able to do it.

Questions which you can directly find on LeetCode (free ones)

Below list is updated frequently . Reflects top Amazon DS & Algo questions in last 6 months

Id Title Companies Design Pattern Difficulty
164. Max Words Visible on Scrollable Screen
Medium
166. Assign Aggressive Cows To Stalls
Medium
167. Trim Tree To Complete Binary Tree
Medium
169. Two Sum Closest To And Less Than Target
Medium
170. Search Minimum And Rotation Count In Rotated Sorted Array
Medium
171. Use Path Operations To Minimize Tree Diameter
Medium
173. Maximum Power Assigned To Machines
Medium
174. Minimum Cost to Join Sticks
Medium
175. Longest Subarray Sum Equals Zero
Medium
176. Find Kth Largest Element From Chef's Collection
Medium
177. Fill Grid Based on Crop Frequency
Medium
111. Maximum Stones Path Sum
Medium
179. Minimum Meeting Rooms Required
Medium
180. Passenger Count During Car Trips
Medium
182. Alien Language Letter Order
Medium
183. Design Google Like Search Autocomplete System
Medium
184. Count Connected Groups in Undirected Graph
Medium
185. Verify Undirected Graph Valid Tree
Medium
186. Design Stack With Peek And Pop Maximum Element
Medium
187. Design Logger System With Message Timestamps
Medium
188. Employee Schedule Common Free Time
Hard
189. Find Missing Numbers In Range
Medium
190. Count Distinct Islands In Grid
Medium
191. Calculator To Evaluate Simple Expression String
Hard
192. Design Tic Tac Toe Game
Medium
193. Insert Into Circular Linked List While Keeping It Sorted
Medium
194. Use Robot To Clean Every Reachable Empty Cell In Room
Medium
195. Multiply Sparse Matrices
Medium
196. Longest Substring With At Most Two Distinct Characters
Medium
197. Longest Substring With At Most N Distinct Characters
Hard
198. Find Anagram Index Mapping
Medium
199. Design System To Store Logs With Timestamp
Medium
200. Maximum Enemies Killed By One Bomb
Medium
201. Next Larger Palindrome Using Same Digits
Medium
202. Design Snake Game With Food And Score
Medium
203. Generate Palindromic Permutations Of String
Medium
204. Shortest Word Distance Between Words
Medium
205. Find Celebrity At Party
Medium


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