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

77

Easy

10 mins

3158

Rotting Oranges

18

Moderate

20 mins

2237

Search In Rotated Sorted Array

127

Moderate

30 mins

8415

Intersection of Two Linked Lists

76

Easy

25 mins

4163

Excel Column Number

6

Easy

23 mins

153

Find Number Of Islands

28

Moderate

34 mins

982

Implement Trie

56

Hard

41 mins

2538

Word Break-1

36

Moderate

36 mins

426

Longest Consecutive Sequence

66

Moderate

40 mins

6488

Break Number

2

Moderate

35 mins

125

Right View

11

Moderate

35 mins

1177

Palindrome Partitioning

14

Moderate

25 mins

1034

Merge Two Sorted Linked Lists

65

Moderate

15 mins

7721

House Robber II

32

Moderate

15 mins

6739

Inplace rotate matrix 90 degree

17

Easy

12 mins

903

Spiral Matrix

16

Easy

15 mins

1040

Print Nodes at Distance K From a Given Node

5

Hard

20 mins

461

Morse Code To English

1

Easy

15 mins

41

Minimum Number Of Taps To Water Garden

10

Hard

15 mins

186

Maximum Size Rectangle Sub-matrix With All 1's

17

Hard

10 mins

495

Find the Good Matrix

8

Moderate

30 mins

320

Tic-Tac-Toe Winner

4

Easy

20 mins

44

Serialize and Deserialize Binary Tree

15

Hard

15 mins

422

Vertical Order Traversal

4

Moderate

35 mins

1046

Construct Binary Tree From Inorder and Preorder Traversal

18

Easy

10 mins

1207

Reverse Words In A String NEW

Easy

77 upvotes

Rotting Oranges NEW

Moderate

18 upvotes

Search In Rotated Sorted Array NEW

Moderate

127 upvotes

Intersection of Two Linked Lists NEW

Easy

76 upvotes

Excel Column Number NEW

Easy

6 upvotes

Find Number Of Islands NEW

Moderate

28 upvotes

Implement Trie NEW

Hard

56 upvotes

Word Break-1 NEW

Moderate

36 upvotes

Longest Consecutive Sequence NEW

Moderate

66 upvotes

Break Number NEW

Moderate

2 upvotes

Right View NEW

Moderate

11 upvotes

Palindrome Partitioning NEW

Moderate

14 upvotes

Merge Two Sorted Linked Lists NEW

Moderate

65 upvotes

House Robber II NEW

Moderate

32 upvotes

Inplace rotate matrix 90 degree NEW

Easy

17 upvotes

Spiral Matrix NEW

Easy

16 upvotes

Print Nodes at Distance K From a Given Node NEW

Hard

5 upvotes

Morse Code To English NEW

Easy

1 upvote

Minimum Number Of Taps To Water Garden NEW

Hard

10 upvotes

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

Hard

17 upvotes

Find the Good Matrix NEW

Moderate

8 upvotes

Tic-Tac-Toe Winner NEW

Easy

4 upvotes

Serialize and Deserialize Binary Tree NEW

Hard

15 upvotes

Vertical Order Traversal NEW

Moderate

4 upvotes

Construct Binary Tree From Inorder and Preorder Traversal NEW

Easy

18 upvotes

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