Queue Interview Questions

Master 9 queue problems frequently asked in technical interviews. These questions test your understanding of queueconcepts and are essential for coding interview success.

9
Total Problems
3
Easy
4
Medium
2
Hard

Related Topics

ArrayDesignHeap (Priority Queue)Data StreamOrdered SetSliding WindowMonotonic QueueBinary Search
#362MediumFrequency: 100%

Design Hit Counter

Asked at Databricks
ArrayBinary SearchDesignQueueData Stream
#1
Rank
#3710HardFrequency: 72%

Design an Array Statistics Tracker

Asked at Amazon
Hash TableBinary SearchDesignQueueHeap (Priority Queue)Data StreamOrdered Set
#2
Rank
#1549MediumFrequency: 63%

Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit

Asked at Uber
ArrayQueueSliding WindowHeap (Priority Queue)Ordered SetMonotonic Queue
#3
Rank
#346EasyFrequency: 62%

Moving Average from Data Stream

Asked at Meta
ArrayDesignQueueData Stream
#4
Rank
#2868MediumFrequency: 60%

Continuous Subarrays

Asked at Google
ArrayQueueSliding WindowHeap (Priority Queue)Ordered SetMonotonic Queue
#5
Rank
#232EasyFrequency: 51%

Implement Queue using Stacks

Asked at Amazon
StackDesignQueue
#6
Rank
#387EasyFrequency: 51%

First Unique Character in a String

Asked at Amazon
Hash TableStringQueueCounting
#7
Rank
#239HardFrequency: 45%

Sliding Window Maximum

Asked at Amazon
ArrayQueueSliding WindowHeap (Priority Queue)Monotonic Queue
#8
Rank
#987MediumFrequency: 42%

Reveal Cards In Increasing Order

Asked at Google
ArrayQueueSortingSimulation
#9
Rank
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