Top Uber Coding Interview Questions

Get ready for uber coding questions for the software engineer position. They cover a wide range of topics and are based on real-life programs. The answers to uber interview questions are explained in detail and will walk you through every fundamental idea behind it. Get started by practicing all the uber interview questions that have been asked earlier.

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Problem Title

EXP

Difficulty

Avg Time to solve

Attempted

Implementation: HashMap

196

40

Easy

30 mins

4.4k

Find Number Of Islands

65

80

Moderate

34 mins

2.9k

Smallest Subarray With K Distinct Elements

75

40

Easy

20 mins

3.4k

Implement Trie

152

120

Hard

41 mins

8.5k

LRU Cache Implementation

49

80

Moderate

25 mins

3k

Valid Sudoku

268

80

Moderate

40 mins

4.1k

Longest Consecutive Sequence

110

80

Moderate

40 mins

16k

Right View

32

80

Moderate

35 mins

2.8k

Distinct Subsequences

40

80

Moderate

10 mins

1.7k

Execution Time

10

80

Moderate

15 mins

0.3k

House Robber II

111

80

Moderate

15 mins

29.1k

Algorithm to find best insert position in sorted array

35

40

Easy

10 mins

4.5k

Print Nodes at Distance K From a Given Node

14

120

Hard

20 mins

1k

Next Permutation

250

80

Moderate

15 mins

16.4k

Serialize and Deserialize Binary Tree

32

120

Hard

15 mins

1.2k

Deepest Left

8

80

Moderate

15 mins

0.3k

Add One to Linked List

14

40

Easy

10 mins

0.6k

Check Bipartite Graph

45

80

Moderate

50 mins

3.5k

Check N numbers

2

80

Moderate

10 mins

0.1k

Squares of a Sorted Array

41

40

Easy

15 mins

2.5k

Settle Debt

7

120

Hard

20 mins

0.2k

Binary Tree Cameras

12

120

Hard

50 mins

0.3k

Search In A 2D Matrix

66

40

Easy

10 mins

10.7k

Combination Sum

25

40

Easy

15 mins

2.7k

Roman Numeral To Integer

33

40

Easy

15 mins

2.8k

Implementation: HashMap

Easy

40

196 upvotes

Find Number Of Islands

Moderate

80

65 upvotes

Smallest Subarray With K Distinct Elements

Easy

40

75 upvotes

Implement Trie

Hard

120

152 upvotes

LRU Cache Implementation

Moderate

80

49 upvotes

Valid Sudoku

Moderate

80

268 upvotes

Longest Consecutive Sequence

Moderate

80

110 upvotes

Right View

Moderate

80

32 upvotes

Distinct Subsequences

Moderate

80

40 upvotes

Execution Time

Moderate

80

10 upvotes

House Robber II

Moderate

80

111 upvotes

Algorithm to find best insert position in sorted array

Easy

40

35 upvotes

Print Nodes at Distance K From a Given Node

Hard

120

14 upvotes

Next Permutation

Moderate

80

250 upvotes

Serialize and Deserialize Binary Tree

Hard

120

32 upvotes

Deepest Left

Moderate

80

8 upvotes

Add One to Linked List

Easy

40

14 upvotes

Check Bipartite Graph

Moderate

80

45 upvotes

Check N numbers

Moderate

80

2 upvotes

Squares of a Sorted Array

Easy

40

41 upvotes

Settle Debt

Hard

120

7 upvotes

Binary Tree Cameras

Hard

120

12 upvotes

Search In A 2D Matrix

Easy

40

66 upvotes

Combination Sum

Easy

40

25 upvotes

Roman Numeral To Integer

Easy

40

33 upvotes

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