Startup vs Big Tech Interview Questions

Compare interview questions between high-growth startups and established big tech companies.

Company Statistics

Uber

Total Problems:15
Easy:1
Medium:11
Hard:3
Avg Frequency:71%
View Uber Questions

Airbnb

Total Problems:1
Easy:0
Medium:1
Hard:0
Avg Frequency:100%
View Airbnb Questions

DoorDash

Total Problems:10
Easy:1
Medium:5
Hard:4
Avg Frequency:80%
View DoorDash Questions

Google

Total Problems:100
Easy:33
Medium:58
Hard:9
Avg Frequency:49%
View Google Questions

Amazon

Total Problems:100
Easy:19
Medium:60
Hard:21
Avg Frequency:52%
View Amazon Questions

Microsoft

Total Problems:54
Easy:20
Medium:27
Hard:7
Avg Frequency:63%
View Microsoft Questions

Common Problems (67)

These problems appear in interviews at multiple companies in this comparison.

EasyMax Frequency: 100%

Two Sum

ArrayHash Table
#1
Common
MediumMax Frequency: 100%

Identify the Largest Outlier in an Array

Asked at:Google, Amazon
ArrayHash TableCountingEnumeration
#2
Common
EasyMax Frequency: 92%

Merge Sorted Array

ArrayTwo PointersSorting
#3
Common
MediumMax Frequency: 88%

LRU Cache

Hash TableLinked ListDesignDoubly-Linked List
#4
Common
MediumMax Frequency: 84%

Longest Substring Without Repeating Characters

Hash TableStringSliding Window
#5
Common
HardMax Frequency: 83%

Binary Tree Maximum Path Sum

Dynamic ProgrammingTreeDepth-First SearchBinary Tree
#6
Common
HardMax Frequency: 83%

Maximum Profit in Job Scheduling

Asked at:DoorDash, Amazon
ArrayBinary SearchDynamic ProgrammingSorting
#7
Common
MediumMax Frequency: 82%

Number of Islands

ArrayDepth-First SearchBreadth-First SearchUnion FindMatrix
#8
Common
EasyMax Frequency: 80%

Merge Strings Alternately

Two PointersString
#9
Common
HardMax Frequency: 79%

Alien Dictionary

Asked at:Uber, Microsoft
ArrayStringDepth-First SearchBreadth-First SearchGraph
#10
Common
EasyMax Frequency: 79%

Climbing Stairs

MathDynamic ProgrammingMemoization
#11
Common
MediumMax Frequency: 79%

Maximum Subarray

ArrayDivide and ConquerDynamic Programming
#12
Common
EasyMax Frequency: 79%

Recyclable and Low Fat Products

Asked at:Google, Microsoft
Database
#13
Common
EasyMax Frequency: 77%

Create Hello World Function

#14
Common
HardMax Frequency: 74%

Trapping Rain Water

Asked at:Google, Amazon
ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
#15
Common

Unique Problems by Company

Uber Unique Problems (9)

MediumFrequency: 100%

Maximize Amount After Two Days of Conversions

HardFrequency: 95%

Bus Routes

HardFrequency: 79%

Number of Islands II

MediumFrequency: 79%

Design Hit Counter

MediumFrequency: 63%

Evaluate Division

Airbnb Unique Problems (1)

MediumFrequency: 100%

Shortest Path in Binary Matrix

DoorDash Unique Problems (6)

MediumFrequency: 100%

Walls and Gates

MediumFrequency: 96%

Find K Closest Elements

HardFrequency: 73%

Longest Increasing Path in a Matrix

MediumFrequency: 73%

Search Suggestions System

MediumFrequency: 73%

Ways to Make a Fair Array

Google Unique Problems (10)

MediumFrequency: 67%

The Earliest Moment When Everyone Become Friends

MediumFrequency: 67%

Zero Array Transformation I

MediumFrequency: 67%

Zero Array Transformation III

MediumFrequency: 60%

Move Pieces to Obtain a String

MediumFrequency: 60%

Continuous Subarrays

Amazon Unique Problems (10)

MediumFrequency: 85%

Task Scheduler

MediumFrequency: 74%

Minimum Array Sum

MediumFrequency: 72%

Group Anagrams

HardFrequency: 72%

Design an Array Statistics Tracker

MediumFrequency: 69%

Analyze User Website Visit Pattern

Microsoft Unique Problems (10)

MediumFrequency: 100%

Digit Operations to Make Two Integers Equal

MediumFrequency: 66%

Maximum Matrix Sum

MediumFrequency: 55%

4Sum

MediumFrequency: 55%

Subsets II

MediumFrequency: 55%

Min Stack

Ace Interviews at Any Company

Whether you're interviewing at Uber, Airbnb, DoorDash, Google, Amazon, Microsoft, or any other company, get real-time AI assistance to solve problems and answer questions during your actual interviews.

Company-specific insights
Live problem solving
Works everywhere