Ace the Apple coding interview by solving the apple interview questions exclusively on CodeStudio with a range of practice problems.

Problem Title

Difficulty

Avg Time to solve

Attempted

Reverse Words In A String

21

Easy

10 mins

359

Rotting Oranges

9

Moderate

20 mins

179

Search In Rotated Sorted Array

49

Moderate

30 mins

643

Intersection of Linked List

21

Easy

25 mins

522

Excel Column Number

5

Easy

23 mins

78

Find Number Of Islands

10

Moderate

34 mins

271

Implement Trie

6

Hard

41 mins

65

Word Break-1

25

Moderate

36 mins

200

Longest Consecutive Sequence

23

Moderate

40 mins

603

Break Number

1

Moderate

35 mins

81

Right View

4

Moderate

35 mins

213

Palindrome Partitioning

4

Hard

25 mins

178

Merge Two Sorted Linked Lists

24

Moderate

15 mins

334

House Robber

2

Moderate

15 mins

194

Inplace rotate matrix 90 degree

12

Easy

12 mins

101

Spiral Matrix

9

Easy

15 mins

137

Print Nodes at Distance K From a Given Node

3

Hard

20 mins

104

Morse Code To English

0

Easy

15 mins

36

Minimum Number Of Taps To Water Garden

7

Hard

15 mins

91

Maximum Size Rectangle Sub-matrix With All 1's

6

Hard

10 mins

73

Find the Good Matrix

6

Moderate

30 mins

84

Tic-Tac-Toe Winner

3

Easy

20 mins

20

Serialize/Deserialize The Binary Tree

6

Hard

15 mins

103

Vertical Order Traversal

0

Moderate

35 mins

86

Construct Binary Tree From Inorder and Preorder Traversal

8

Easy

10 mins

127

Reverse Words In A String NEW

Easy

21 upvotes

Rotting Oranges NEW

Moderate

9 upvotes

Search In Rotated Sorted Array NEW

Moderate

49 upvotes

Intersection of Linked List NEW

Easy

21 upvotes

Excel Column Number NEW

Easy

5 upvotes

Find Number Of Islands NEW

Moderate

10 upvotes

Implement Trie NEW

Hard

6 upvotes

Word Break-1 NEW

Moderate

25 upvotes

Longest Consecutive Sequence NEW

Moderate

23 upvotes

Break Number NEW

Moderate

1 upvote

Right View NEW

Moderate

4 upvotes

Palindrome Partitioning NEW

Hard

4 upvotes

Merge Two Sorted Linked Lists NEW

Moderate

24 upvotes

House Robber NEW

Moderate

2 upvotes

Inplace rotate matrix 90 degree NEW

Easy

12 upvotes

Spiral Matrix NEW

Easy

9 upvotes

Print Nodes at Distance K From a Given Node NEW

Hard

3 upvotes

Morse Code To English NEW

Easy

0 upvotes

Minimum Number Of Taps To Water Garden NEW

Hard

7 upvotes

Maximum Size Rectangle Sub-matrix With All 1's NEW

Hard

6 upvotes

Find the Good Matrix NEW

Moderate

6 upvotes

Tic-Tac-Toe Winner NEW

Easy

3 upvotes

Serialize/Deserialize The Binary Tree NEW

Hard

6 upvotes

Vertical Order Traversal NEW

Moderate

0 upvotes

Construct Binary Tree From Inorder and Preorder Traversal NEW

Easy

8 upvotes

Page of 4