Google vs Amazon Interview Questions

Compare coding interview questions between Google and Amazon. See which problems are unique to each company and which overlap.

Company Statistics

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

Common Problems (47)

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

EasyMax Frequency: 100%

Two Sum

Asked at:Google, Amazon
ArrayHash Table
#1
Common
MediumMax Frequency: 100%

Identify the Largest Outlier in an Array

Asked at:Google, Amazon
ArrayHash TableCountingEnumeration
#2
Common
MediumMax Frequency: 82%

Number of Islands

Asked at:Google, Amazon
ArrayDepth-First SearchBreadth-First SearchUnion FindMatrix
#3
Common
MediumMax Frequency: 81%

LRU Cache

Asked at:Google, Amazon
Hash TableLinked ListDesignDoubly-Linked List
#4
Common
EasyMax Frequency: 80%

Merge Strings Alternately

Asked at:Google, Amazon
Two PointersString
#5
Common
EasyMax Frequency: 77%

Create Hello World Function

Asked at:Google, Amazon
#6
Common
HardMax Frequency: 74%

Trapping Rain Water

Asked at:Google, Amazon
ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
#7
Common
MediumMax Frequency: 73%

Longest Substring Without Repeating Characters

Asked at:Google, Amazon
Hash TableStringSliding Window
#8
Common
MediumMax Frequency: 72%

Reorganize String

Asked at:Google, Amazon
Hash TableStringGreedySortingHeap (Priority Queue)
#9
Common
MediumMax Frequency: 71%

Add Two Numbers

Asked at:Google, Amazon
Linked ListMathRecursion
#10
Common
EasyMax Frequency: 71%

Merge Sorted Array

Asked at:Google, Amazon
ArrayTwo PointersSorting
#11
Common
EasyMax Frequency: 69%

Best Time to Buy and Sell Stock

Asked at:Google, Amazon
ArrayDynamic Programming
#12
Common
HardMax Frequency: 67%

Median of Two Sorted Arrays

Asked at:Google, Amazon
ArrayBinary SearchDivide and Conquer
#13
Common
HardMax Frequency: 67%

Merge k Sorted Lists

Asked at:Google, Amazon
Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
#14
Common
MediumMax Frequency: 65%

Merge Intervals

Asked at:Google, Amazon
ArraySorting
#15
Common

Unique Problems by Company

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

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