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
4. Median of Two Sorted Arrays	Solve	Hard	Accolite+38	Array Binary Search+1
10. Regular Expression Matching	Solve	Hard	Adobe+8	Dynamic Programming Recursion+1
23. Merge k Sorted Lists	Solve	Hard	Adobe+17	Divide and Conquer Heap (Priority Queue)+2
30. Substring with Concatenation of All Words	Solve	Hard	Amazon+4	Hash Table Sliding Window+1
37. Sudoku Solver	Solve	Hard	Adobe+11	Array Backtracking+2
42. Trapping Rain Water	Solve	Hard	Adobe+21	Array Dynamic Programming+3
68. Text Justification	Solve	Hard	Adobe+25	Array Simulation+1
76. Minimum Window Substring	Solve	Hard	Adobe+9	Hash Table Sliding Window+1
85. Maximal Rectangle	Solve	Hard	Amazon+2	Array Dynamic Programming+3
123. Best Time to Buy and Sell Stock III	Solve	Hard	Amazon+2	Array Dynamic Programming
127. Word Ladder	Solve	Hard	Adobe+8	Breadth-First Search Hash Table+1
135. Candy	Solve	Hard	Adobe+21	Array Greedy
140. Word Break II	Solve	Hard	Adobe+7	Array Backtracking+5
188. Best Time to Buy and Sell Stock IV	Solve	Hard	Amazon+4	Array Dynamic Programming
212. Word Search II	Solve	Hard	Amazon+9	Array Backtracking+3
214. Shortest Palindrome	Solve	Hard	Apple+3	Hash Function Rolling Hash+2
220. Contains Duplicate III	Solve	Hard	Adobe+3	Array Bucket Sort+3
239. Sliding Window Maximum	Solve	Hard	Accion Labs India+66	Array Heap (Priority Queue)+3
273. Integer to English Words	Solve	Hard	Amazon+7	Math Recursion+1
295. Find Median from Data Stream	Solve	Hard	Adobe+33	Data Stream Design+3
312. Burst Balloons	Solve	Hard	Amazon+5	Array Dynamic Programming
321. Create Maximum Number	Solve	Hard	Apple+1	Array Greedy+3
329. Longest Increasing Path in a Matrix	Solve	Hard	Amazon+14	Array Breadth-First Search+6
336. Palindrome Pairs	Solve	Hard	Airbnb+5	Array Hash Table+2
391. Perfect Rectangle	Solve	Hard	Apple+1	Array Line Sweep
403. Frog Jump	Solve	Hard	Adobe+21	Array Dynamic Programming
410. Split Array Largest Sum	Solve	Hard	Amazon+5	Array Binary Search+3
428. Serialize and Deserialize N-ary Tree	Solve	Hard	Amazon+7	Breadth-First Search Depth-First Search+2
460. LFU Cache	Solve	Hard	Amazon+9	Design Doubly-Linked List+2
632. Smallest Range Covering Elements from K Lists	Solve	Hard	Adobe+8	Array Greedy+4
675. Cut Off Trees for Golf Event	Solve	Hard	Amazon+1	Array Breadth-First Search+2
726. Number of Atoms	Solve	Hard	Amazon+5	Hash Table Sorting+2
730. Count Different Palindromic Subsequences	Solve	Hard	Apple+3	Dynamic Programming String
759. Employee Free Time	Solve	Hard	Airbnb+7	Array Heap (Priority Queue)+1
768. Max Chunks To Make Sorted II	Solve	Hard	Adobe+6	Array Greedy+3
772. Basic Calculator III	Solve	Hard	Amazon+12	Math Recursion+2
778. Swim in Rising Water	Solve	Hard	Amazon+6	Array Binary Search+5
798. Smallest Rotation with Highest Score	Solve	Hard	Apple	Array Prefix Sum
839. Similar String Groups	Solve	Hard	Apple+1	Array Breadth-First Search+4
847. Shortest Path Visiting All Nodes	Solve	Hard	Amazon+7	Bit Manipulation Bitmask+3
871. Minimum Number of Refueling Stops	Solve	Hard	Amazon+9	Array Dynamic Programming+2
887. Super Egg Drop	Solve	Hard	Amazon+3	Binary Search Dynamic Programming+1
895. Maximum Frequency Stack	Solve	Hard	Adobe+7	Design Hash Table+2
968. Binary Tree Cameras	Solve	Hard	Amazon+7	Binary Tree Depth-First Search+2
992. Subarrays with K Different Integers	Solve	Hard	Adobe+10	Array Counting+2
996. Number of Squareful Arrays	Solve	Hard	Apple+1	Array Backtracking+5
1036. Escape a Large Maze	Solve	Hard	Apple+2	Array Breadth-First Search+2
1095. Find in Mountain Array	Solve	Hard	Adobe+8	Array Binary Search+1
1153. String Transforms Into Another String	Solve	Hard	Amazon+4	Hash Table String
1235. Maximum Profit in Job Scheduling	Solve	Hard	Adobe+18	Array Binary Search+2