Dashboard Questions Topics Companies Sheets

Apple Interview Questions

390 coding problems asked in Apple interviews. Prepare for your technical interview with real questions.

390

Problems

125

Easy

194

Medium

Hard

Difficulty

All390 Easy125 Medium194 Hard71

Title	Solve	Difficulty	Companies	Topics
73. Set Matrix Zeroes	Solve	Medium	Amazon+4	Array Hash Table+1
74. Search a 2D Matrix	Solve	Medium	Accenture+23	Array Binary Search+1
76. Minimum Window Substring	Solve	Hard	Adobe+9	Hash Table Sliding Window+1
77. Combinations	Solve	Medium	Adobe+7	Backtracking
78. Subsets	Solve	Medium	Adobe+9	Array Backtracking+1
81. Search in Rotated Sorted Array II	Solve	Medium	Adobe+4	Array Binary Search
85. Maximal Rectangle	Solve	Hard	Amazon+2	Array Dynamic Programming+3
86. Partition List	Solve	Medium	Adobe+8	Linked List Two Pointers
88. Merge Sorted Array	Solve	Easy	Amazon+9	Array Sorting+1
91. Decode Ways	Solve	Medium	Amazon+8	Dynamic Programming String
92. Reverse Linked List II	Solve	Medium	1218 Global+122	Linked List
94. Binary Tree Inorder Traversal	Solve	Easy	Adobe+13	Binary Tree Depth-First Search+2
97. Interleaving String	Solve	Medium	Amazon+23	Dynamic Programming String
99. Recover Binary Search Tree	Solve	Medium	Adobe+5	Binary Search Tree Binary Tree+2
100. Same Tree	Solve	Easy	Amazon+5	Binary Tree Breadth-First Search+2
102. Binary Tree Level Order Traversal	Solve	Medium	Amazon+8	Binary Tree Breadth-First Search+1
103. Binary Tree Zigzag Level Order Traversal	Solve	Medium	Adobe+8	Binary Tree Breadth-First Search+1
104. Maximum Depth of Binary Tree	Solve	Easy	Amazon+7	Binary Tree Breadth-First Search+2
108. Convert Sorted Array to Binary Search Tree	Solve	Easy	Amazon+4	Array Binary Search Tree+3
116. Populating Next Right Pointers in Each Node	Solve	Medium	Adobe+11	Binary Tree Breadth-First Search+3
118. Pascal's Triangle	Solve	Easy	Adobe+17	Array Dynamic Programming
121. Best Time to Buy and Sell Stock	Solve	Easy	Adobe+30	Array Dynamic Programming
123. Best Time to Buy and Sell Stock III	Solve	Hard	Amazon+2	Array Dynamic Programming
125. Valid Palindrome	Solve	Easy	Adobe+8	String Two Pointers
127. Word Ladder	Solve	Hard	Adobe+8	Breadth-First Search Hash Table+1
128. Longest Consecutive Sequence	Solve	Medium	Adobe+9	Array Hash Table+1
131. Palindrome Partitioning	Solve	Medium	Amazon+4	Backtracking Dynamic Programming+1
134. Gas Station	Solve	Medium	Adobe+8	Array Greedy
135. Candy	Solve	Hard	Adobe+21	Array Greedy
136. Single Number	Solve	Easy	Adobe+8	Array Bit Manipulation
137. Single Number II	Solve	Medium	Amazon+10	Array Bit Manipulation
138. Copy List with Random Pointer	Solve	Medium	Aditya Birla group+30	Hash Table Linked List
139. Word Break	Solve	Medium	Accenture+38	Array Dynamic Programming+4
140. Word Break II	Solve	Hard	Adobe+7	Array Backtracking+5
141. Linked List Cycle	Solve	Easy	42gearMobilitySystems+131	Hash Table Linked List+1
146. LRU Cache	Solve	Medium	Accolite+56	Design Doubly-Linked List+2
148. Sort List	Solve	Medium	Amazon+4	Divide and Conquer Linked List+3
151. Reverse Words in a String	Solve	Medium	Amazon+5	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
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
179. Largest Number	Solve	Medium	Adobe+8	Array Greedy+2
180. Consecutive Numbers	Solve	Medium	Adobe+4	Database
181. Employees Earning More Than Their Managers	Solve	Easy	Amazon+7	Database
183. Customers Who Never Order	Solve	Easy	Adobe+3	Database