Queue Interview Questions

Master 11 queue problems frequently asked in technical interviews. These questions test your understanding of queueconcepts and are essential for coding interview success.

Total Problems

Easy

Medium

Hard

Implement Queue using Stacks

Asked at TikTok

Stack Design Queue

Rank

#387EasyFrequency: 83%

First Unique Character in a String

Asked at Oracle

Hash Table String Queue Counting

Rank

#362MediumFrequency: 79%

Design Hit Counter

Asked at Uber

Array Binary Search Design Queue Data Stream

Rank

#346EasyFrequency: 74%

Moving Average from Data Stream

Asked at Infosys

Array Design Queue Data Stream

Rank

#3710HardFrequency: 72%

Design an Array Statistics Tracker

Asked at Amazon

Hash Table Binary Search Design Queue Heap (Priority Queue)Data Stream Ordered Set

Rank

#353MediumFrequency: 67%

Design Snake Game

Asked at Apple

Array Hash Table Design Queue Simulation

Rank

#1549MediumFrequency: 67%

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

Asked at Salesforce

Array Queue Sliding Window Heap (Priority Queue)Ordered Set Monotonic Queue

Rank

#987MediumFrequency: 63%

Reveal Cards In Increasing Order

Asked at DoorDash

Array Queue Sorting Simulation

Rank

#2868MediumFrequency: 60%

Continuous Subarrays

Asked at Google

Array Queue Sliding Window Heap (Priority Queue)Ordered Set Monotonic Queue

Rank

#954MediumFrequency: 50%

Maximum Sum Circular Subarray

Asked at Flipkart

Array Divide and Conquer Dynamic Programming Queue Monotonic Queue

#10

Rank

#239HardFrequency: 45%

Sliding Window Maximum

Asked at Amazon

Array Queue Sliding Window Heap (Priority Queue)Monotonic Queue

#11

Rank

View All Topics

Master Queue in Real Interviews

Get AI-powered assistance when solving queue problems during your actual interviews.

Get Started Free

No credit card required

Queue Interview Questions

Master 11 queue problems frequently asked in technical interviews. These questions test your understanding of queueconcepts and are essential for coding interview success.

Total Problems

Easy

Medium

Hard