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

193

40

Easy

30 mins

4.3k

Find Number Of Islands

64

80

Moderate

34 mins

2.7k

Smallest Subarray With K Distinct Elements

74

40

Easy

20 mins

3.3k

Implement Trie

146

120

Hard

41 mins

7.8k

LRU Cache Implementation

46

80

Moderate

25 mins

2.9k

Valid Sudoku

261

80

Moderate

40 mins

3.8k

Longest Consecutive Sequence

104

80

Moderate

40 mins

15.1k

Right View

30

80

Moderate

35 mins

2.6k

Distinct Subsequences

39

80

Moderate

10 mins

1.7k

Execution Time

10

80

Moderate

15 mins

0.3k

House Robber II

101

80

Moderate

15 mins

26k

Algorithm to find best insert position in sorted array

33

40

Easy

10 mins

4.1k

Print Nodes at Distance K From a Given Node

13

120

Hard

20 mins

0.9k

Next Permutation

236

80

Moderate

15 mins

15.3k

Serialize and Deserialize Binary Tree

29

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

43

80

Moderate

50 mins

3.3k

Check N numbers

2

80

Moderate

10 mins

0.1k

Squares of a Sorted Array

38

40

Easy

15 mins

2.3k

Settle Debt

6

120

Hard

20 mins

0.2k

Binary Tree Cameras

11

120

Hard

50 mins

0.3k

Search In A 2D Matrix

63

40

Easy

10 mins

10.1k

Combination Sum

24

40

Easy

15 mins

2.4k

Roman Numeral To Integer

30

40

Easy

15 mins

2.6k

Implementation: HashMap

Easy

40

193 upvotes

Find Number Of Islands

Moderate

80

64 upvotes

Smallest Subarray With K Distinct Elements

Easy

40

74 upvotes

Implement Trie

Hard

120

146 upvotes

LRU Cache Implementation

Moderate

80

46 upvotes

Valid Sudoku

Moderate

80

261 upvotes

Longest Consecutive Sequence

Moderate

80

104 upvotes

Right View

Moderate

80

30 upvotes

Distinct Subsequences

Moderate

80

39 upvotes

Execution Time

Moderate

80

10 upvotes

House Robber II

Moderate

80

101 upvotes

Algorithm to find best insert position in sorted array

Easy

40

33 upvotes

Print Nodes at Distance K From a Given Node

Hard

120

13 upvotes

Next Permutation

Moderate

80

236 upvotes

Serialize and Deserialize Binary Tree

Hard

120

29 upvotes

Deepest Left

Moderate

80

8 upvotes

Add One to Linked List

Easy

40

14 upvotes

Check Bipartite Graph

Moderate

80

43 upvotes

Check N numbers

Moderate

80

2 upvotes

Squares of a Sorted Array

Easy

40

38 upvotes

Settle Debt

Hard

120

6 upvotes

Binary Tree Cameras

Hard

120

11 upvotes

Search In A 2D Matrix

Easy

40

63 upvotes

Combination Sum

Easy

40

24 upvotes

Roman Numeral To Integer

Easy

40

30 upvotes

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