Dashboard Questions Topics Companies Sheets

Google Interview Questions

969 coding problems asked in Google interviews. Prepare for your technical interview with real questions.

969

Problems

192

Easy

518

Medium

259

Hard

Difficulty

All969 Easy192 Medium518 Hard259

Title	Solve	Difficulty	Companies	Topics
151. Reverse Words in a String	Solve	Medium	Amazon+5	String Two Pointers
152. Maximum Product Subarray	Solve	Medium	Adobe+6	Array Dynamic Programming
154. Find Minimum in Rotated Sorted Array II	Solve	Hard	Google	Array Binary Search
155. Min Stack	Solve	Medium	Adobe+7	Design Stack
158. Read N Characters Given read4 II - Call Multiple Times	Solve	Hard	Facebook+3	Array Interactive+1
161. One Edit Distance	Solve	Medium	Facebook+2	String Two Pointers
162. Find Peak Element	Solve	Medium	Amazon+8	Array Binary Search
167. Two Sum II - Input Array Is Sorted	Solve	Medium	Adobe+5	Array Binary Search+1
168. Excel Sheet Column Title	Solve	Easy	Adobe+24	Math String
169. Majority Element	Solve	Easy	Adobe+8	Array Counting+3
171. Excel Sheet Column Number	Solve	Easy	Apple+2	Math String
173. Binary Search Tree Iterator	Solve	Medium	Amazon+5	Binary Search Tree Binary Tree+4
175. Combine Two Tables	Solve	Easy	Adobe+6	Database
176. Second Highest Salary	Solve	Medium	Accenture+10	Database
178. Rank Scores	Solve	Medium	Adobe+4	Database
181. Employees Earning More Than Their Managers	Solve	Easy	Amazon+7	Database
184. Department Highest Salary	Solve	Medium	Adobe+3	Database
185. Department Top Three Salaries	Solve	Hard	Amazon+4	Database
188. Best Time to Buy and Sell Stock IV	Solve	Hard	Amazon+4	Array Dynamic Programming
189. Rotate Array	Solve	Medium	Amazon+6	Array Math+1
190. Reverse Bits	Solve	Easy	Apple+4	Bit Manipulation Divide and Conquer
191. Number of 1 Bits	Solve	Easy	Amazon+6	Bit Manipulation Divide and Conquer
197. Rising Temperature	Solve	Easy	Adobe+5	Database
198. House Robber	Solve	Medium	Adobe+8	Array Dynamic Programming
200. Number of Islands	Solve	Medium	Adobe+40	Array Breadth-First Search+3
202. Happy Number	Solve	Easy	Adobe+5	Hash Table Math+1
205. Isomorphic Strings	Solve	Easy	Amazon+2	Hash Table String
206. Reverse Linked List	Solve	Easy	Amazon+8	Linked List Recursion
207. Course Schedule	Solve	Medium	Amazon+8	Breadth-First Search Depth-First Search+2
208. Implement Trie (Prefix Tree)	Solve	Medium	Amazon+8	Design Hash Table+2
209. Minimum Size Subarray Sum	Solve	Medium	Amazon+7	Array Binary Search+2
210. Course Schedule II	Solve	Medium	Amazon+14	Breadth-First Search Depth-First Search+2
211. Design Add and Search Words Data Structure	Solve	Medium	Amazon+6	Depth-First Search Design+2
212. Word Search II	Solve	Hard	Amazon+9	Array Backtracking+3
213. House Robber II	Solve	Medium	Amazon+1	Array Dynamic Programming
215. Kth Largest Element in an Array	Solve	Medium	ABCO+44	Array Divide and Conquer+3
216. Combination Sum III	Solve	Medium	Google	Array Backtracking
217. Contains Duplicate	Solve	Easy	Adobe+8	Array Hash Table+1
218. The Skyline Problem	Solve	Hard	Cruise Automation+3	Array Binary Indexed Tree+5
219. Contains Duplicate II	Solve	Easy	Adobe+6	Array Hash Table+1
220. Contains Duplicate III	Solve	Hard	Adobe+3	Array Bucket Sort+3
221. Maximal Square	Solve	Medium	Amazon+7	Array Dynamic Programming+1
222. Count Complete Tree Nodes	Solve	Easy	Amazon+2	Binary Search Binary Tree+2
224. Basic Calculator	Solve	Hard	Adobe+8	Math Recursion+2
226. Invert Binary Tree	Solve	Easy	Amazon+5	Binary Tree Breadth-First Search+2
228. Summary Ranges	Solve	Easy	Adobe+7	Array
229. Majority Element II	Solve	Medium	Accolite+21	Array Counting+2
231. Power of Two	Solve	Easy	Amazon+3	Bit Manipulation Math+1
232. Implement Queue using Stacks	Solve	Easy	Amazon+4	Design Queue+1
233. Number of Digit One	Solve	Hard	Google+1	Dynamic Programming Math+1