PracHub
QuestionsExperienceLearningGuidesInterview Prep
Visa Tools

Visa Tools

Visa Sponsors

Find employers with sponsorship filings

H-1B Odds Calculator

Explore your lottery selection odds

Visa Bulletin

Monthly green-card priority dates

PracHub

Master your tech interviews with 18,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities
  • Careers

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • Blind 75
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
161
Companies
980
Updated
11.06.2026
161 Questions 980 Companies11.06.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Meta, Bloomberg

Medium
Software Engineer

Distances Between Strict Linked-List Turning Points

Problem A node in a singly linked list is a critical point if its value is strictly greater than both immediate neighbors or strictly less than both. ...

Coding & AlgorithmsLinked Lists
0
0
10 people solved
Apple logo
Apple
Medium
Software Engineer

Solve 15 common interview problems

Below are fifteen independent coding problems commonly discussed in software engineering interviews. For each one, write an efficient algorithm and be...

Coding & AlgorithmsArrays & StringsGraphs
22
1
218 people solved
Jan 27, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Assemble DNA payload strings from tagged fragments

You are given a list of DNA-like fragments. Each fragment is a tuple: - start_tag: string - end_tag: string - payload: string A valid DNA chain is for...

Coding & AlgorithmsGraphs
21
0
340 people solved
Dec 15, 2025
Meta logo
Meta
Medium
Backend Engineer AI Locked

Solve coding and AI-assisted tasks

This set evaluates algorithmic problem-solving across arrays, immutable linked-list interfaces, parent-pointer tree traversal, string validity via min...

Coding & AlgorithmsGrids & MatricesLinked Lists
22
0
168 people solved
Apr 8, 2026
Optiver logo
Optiver
Medium
Software Engineer

Design a queue and analyze tradeoffs

Design a FIFO queue data structure that supports enqueue, dequeue, peek, and isEmpty. Compare implementations using a singly linked list, a dynamic ar...

Coding & AlgorithmsData Structure Design
62
0
521 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Software Engineer

Delete nodes in linked list and binary tree

You are asked to solve two short coding tasks. You may assume standard node definitions: - Singly linked list node: val, next - Binary tree node: val,...

Coding & AlgorithmsLinked ListsTrees
6
0
129 people solved
Feb 11, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Build an LRU Cache with a Hash Map and Linked List

Build an LRU cache from a hash map and doubly linked list, supporting recency-changing reads, updates, and precise least-recently-used eviction at fix...

Coding & AlgorithmsData Structure DesignLinked Lists
18
0
124 people solved
Aug 11, 2026
Apple logo
Apple
Medium
Software Engineer

Design a Thread-Safe Linked List with Lock Coupling

Implement a linked-list abstraction supporting concurrent insert, delete, and read operations. Discuss node-level locking, hand-over-hand traversal, s...

Software Engineering FundamentalsConcurrencyLinked Lists
1
0
9 people solved
Jul 25, 2026
Google logo
GoogleJosh TechnologyBloomberg

Also asked at Bloomberg, Meta, Nutanix

Medium
Software Engineer

Reverse Linked-List Groups of Actual Even Size

Problem Split a singly linked list into consecutive nonempty groups with intended sizes 1, 2, 3, 4, .... The last group contains whichever nodes remai...

Coding & AlgorithmsLinked Lists
1
0
12 people solved
LinkedIn logo
LinkedIn
Medium
Software Engineer

Implement an LRU cache with follow-ups

Coding: Implement an LRU Cache and discuss concurrency Design and implement an in-memory Least Recently Used (LRU) cache data structure. The cache sho...

Coding & AlgorithmsData Structure DesignConcurrency
25
0
340 people solved
Dec 8, 2025
Google logo
GoogleMicrosoftAmazon

Also asked at Amazon, Bloomberg, Meta, TCS, Goldman Sachs

Medium
Software Engineer

Unlink the Later Middle Node

Problem Given the head of a singly linked list with n nodes, remove the node at zero-based position floor(n / 2) and return the head of the remaining ...

Coding & AlgorithmsLinked ListsTwo Pointers & Sliding Window
1
0
11 people solved
Amazon logo
AmazonMicrosoftGoogle

Also asked at Google, Nutanix, Oracle, Meta, Bloomberg

Easy
Software Engineer

Read a Binary Integer From Native List Nodes

Problem The nonempty singly linked list begins with its most significant binary digit. Every node value is 0 or 1. Return the represented integer in d...

Coding & AlgorithmsLinked ListsBit Manipulation
0
0
4 people solved
Microsoft logo
Microsoft
Medium
Software Engineer

Check a Linked List Palindrome Without Mutating It

Implement linked_list_palindrome(values), where values is the traversal-order serialization of a singly linked list of integer values. Return whether ...

Coding & AlgorithmsLinked ListsTwo Pointers & Sliding Window
4
0
42 people solved
Apr 11, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software EngineerSenior+

Implement an O(1) LRU Cache, Then Extend It into an LFU Cache

Implement an in-memory key-value cache with a fixed capacity that evicts the least recently used entry when it is full, then extend it so that it evic...

Software Engineering FundamentalsData Structure DesignLinked Lists
0
0
7 people solved
Aug 18, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Thread Safety, Deadlock Prevention, and Arrays vs Linked Lists

In a rapid-fire concepts segment of a software engineering interview, the interviewer asked four short questions in a row about concurrency and basic ...

Software Engineering FundamentalsConcurrencyLinked Lists
1
0
14 people solved
Aug 4, 2026
Apple logo
Apple
Medium
Software EngineerNew Grad

Reverse a Singly Linked List In Place

Reverse a singly linked list and return its new head. Constraints and Clarifications For the standard practice contract, the list is finite and acycli...

Coding & AlgorithmsLinked Lists
1
0
14 people solved
Mar 14, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Deep-Clone a Hand-Built Doubly Linked List with an Arbitrary Special Pointer

Implement a doubly linked list in which every node has four fields: - value: the node's value (assume an integer); - left: the previous node, or null ...

Software Engineering FundamentalsLinked Lists
1
0
16 people solved
Aug 4, 2026
Oracle logo
Oracle
Medium
Software Engineer

Object-oriented design of a fixed-capacity LRU cache with O(1) get and put

In an object-oriented design round, design and implement a least-recently-used (LRU) cache with a fixed capacity: - get(key) returns the value stored ...

Software Engineering FundamentalsData Structure DesignLow-Level Design (OOP)
1
0
12 people solved
Aug 1, 2026
Datologyai logo
Datologyai
Easy
Software Engineer

Text Editor with a Cursor: Typing, Backspace, and Four-Way Cursor Movement

Implement a TextEditor class that holds one document and a cursor. The cursor sits between two characters, or at the start or end of the text, and eve...

Software Engineering FundamentalsData Structure DesignStacks & Queues
3
0
52 people solved
Jan 1, 2026
Amazon logo
AmazonGoogleJosh Technology

Also asked at Josh Technology, Meta, Bloomberg

Medium
Software Engineer

Largest Sum of Symmetric List Partners

Problem A singly linked list has even length n. Pair each node at zero-based position i in the first half with the node at position n - 1 - i. Return ...

Coding & AlgorithmsLinked Lists
0
0
7 people solved
Previous1...456...9Next
Popular Categories
SQLBlind 75
Daily Quest

Sign in to earn XP for every problem you solve.

Choose your next challenge

All learning

Blind 75

75 free coding problems to build your foundations, with hints, explanations, and a progress checklist.

Arrays · Graphs · Dynamic programming

Explore Blind 75

ML System Design

Work through the decisions behind machine learning systems, from data to serving.

Data · Models · Evaluation

Explore the course

System Design Interview

Practice reasoning about architecture, scale, and the tradeoffs that shape a system.

Architecture · Scale · Tradeoffs

Explore the course

Explore by company

All companies
  • Meta
  • Google
  • Amazon
  • Apple
  • Microsoft
  • Netflix
  • Capital One
  • TikTok
  • DoorDash
  • Uber
  • Coinbase
  • Airbnb
  • LinkedIn
  • Salesforce
  • Snapchat
  • Spotify
  • PayPal
  • Lyft
  • Pinterest
  • Anthropic
  • OpenAI
  • Databricks
  • Rippling
  • Jane Street

Explore by role

  • Data Scientist
  • Software Engineer
  • Machine Learning Engineer
  • Product Manager
  • Data Engineer
  • Data Analyst
  • Frontend Engineer
  • Backend Engineer
  • Site Reliability Engineer
  • Technical Program Manager

Explore by category

  • Blind 75
  • Coding & Algorithms
  • System Design
  • Machine Learning
  • ML System Design
  • SQL & Python
  • Analytics & Experimentation
  • Behavioral & Leadership
  • Statistics & Math
  • Product / Decision Making
  • Product Design & Strategy
  • SWE Fundamentals

Popular interview guides

  • Meta SWE
  • Meta DS
  • Meta PM
  • Google SWE
  • Google DS
  • Google MLE
  • Amazon SWE
  • Amazon DS
  • Amazon DE
  • Apple SWE
  • Apple MLE
  • Microsoft SWE
  • Microsoft DS
  • TikTok SWE
  • TikTok DS
  • Uber SWE
  • Uber DS
  • DoorDash SWE
  • DoorDash DS
  • Airbnb SWE
  • Airbnb DS
  • LinkedIn SWE
  • LinkedIn DS
  • Netflix SWE
  • Coinbase SWE
  • Capital One DS
  • OpenAI SWE
  • Anthropic SWE

Popular question categories

  • Blind 75
  • Meta Coding
  • Google System Design
  • Amazon Coding
  • Meta Analytics
  • Google ML
  • Amazon System Design
  • Capital One SQL
  • TikTok ML
  • Meta SQL
  • Uber Analytics
  • DoorDash Coding
  • Google Coding
  • Netflix System Design
  • Airbnb Analytics
  • LinkedIn SQL