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Interview Questions›Compare›Google vs Amazon Interview Questions

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:2344
Easy:616
Medium:1223
Hard:505
Avg Frequency:19%
View Google Questions

Amazon

Total Problems:2011
Easy:536
Medium:1087
Hard:388
Avg Frequency:21%
View Amazon Questions

Common Problems (1618)

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: 88.5%

LRU Cache

Asked at:Google, Amazon
Hash TableLinked ListDesignDoubly-Linked List
#2
Common
HardMax Frequency: 88%

Trapping Rain Water

Asked at:Google, Amazon
ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
#3
Common
MediumMax Frequency: 85.6%

Number of Islands

Asked at:Google, Amazon
ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
#4
Common
MediumMax Frequency: 84.5%

Longest Substring Without Repeating Characters

Asked at:Google, Amazon
Hash TableStringSliding Window
#5
Common
EasyMax Frequency: 83.8%

Best Time to Buy and Sell Stock

Asked at:Google, Amazon
ArrayDynamic Programming
#6
Common
MediumMax Frequency: 80.6%

Group Anagrams

Asked at:Google, Amazon
ArrayHash TableStringSorting
#7
Common
MediumMax Frequency: 79.7%

Add Two Numbers

Asked at:Google, Amazon
Linked ListMathRecursion
#8
Common
MediumMax Frequency: 78.5%

Longest Palindromic Substring

Asked at:Google, Amazon
Two PointersStringDynamic ProgrammingManacher
#9
Common
MediumMax Frequency: 78.3%

3Sum

Asked at:Google, Amazon
ArrayTwo PointersSorting
#10
Common
MediumMax Frequency: 78.3%

Reorganize String

Asked at:Google, Amazon
Hash TableStringGreedySortingHeap (Priority Queue)
#11
Common
HardMax Frequency: 76.8%

Median of Two Sorted Arrays

Asked at:Google, Amazon
ArrayBinary SearchDivide and Conquer
#12
Common
MediumMax Frequency: 76.7%

Container With Most Water

Asked at:Google, Amazon
ArrayTwo PointersGreedy
#13
Common
MediumMax Frequency: 76.6%

Merge Intervals

Asked at:Google, Amazon
ArraySortingQuicksort
#14
Common
MediumMax Frequency: 75%

Course Schedule

Asked at:Google, Amazon
Depth-First SearchBreadth-First SearchGraph TheoryTopological SortDirected Acyclic Graph
#15
Common

Most Popular Topics

2441
Array
989
String
944
Hash Table
712
Dynamic Programming
710
Math
642
Sorting
507
Greedy
465
Depth-First Search
423
Binary Search
370
Breadth-First Search

Unique Problems by Company

Google Unique Problems (10)

HardFrequency: 54.5%

Viewers Turned Streamers

HardFrequency: 48.8%

Count Number of Trapezoids II

MediumFrequency: 45.4%

The Earliest Moment When Everyone Become Friends

MediumFrequency: 44.6%

Count Number of Trapezoids I

MediumFrequency: 42.7%

Apply Substitutions

Amazon Unique Problems (10)

HardFrequency: 53%

Concatenated Words

MediumFrequency: 47.7%

Plates Between Candles

MediumFrequency: 43.6%

Minimum Health to Beat Game

HardFrequency: 40.2%

Sum of Total Strength of Wizards

MediumFrequency: 38.9%

Minimum Operations to Make Array Non Decreasing

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