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
639
Companies
980
Updated
11.10.2026
639 Questions 980 Companies11.10.2026
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
Anthropic logo
Anthropic
Medium
Software Engineer

Make a Web Crawler Concurrent with Thread-Safe Visited State

Start with a single-threaded web crawler, then redesign it for concurrent fetching. Explain how discovered links enter the work queue and how shared v...

Software Engineering FundamentalsConcurrencyGraphs
55
0
422 people solved
Oct 5, 2026
Ramp logo
Ramp
Medium
Software Engineer

Find the Exit of an HTTP URL Maze Despite Flaky 503s and Bad JSON

You are given the URL of the entrance to a maze made of HTTP endpoints. A GET request to a maze URL returns a JSON object whose key next_stops maps to...

Software Engineering FundamentalsAPI Integration & HTTP ClientsGraphs
39
0
440 people solved
Sep 7, 2026
Capital One logo
Capital One
Medium
Software Engineer

Simulate Rot Spreading Through an Orchard Grid Over a Number of Days

An orchard is a grid of characters: 'R' is a rotten tree, 'H' is a healthy tree, and '-' is empty ground. Every day, each rotten tree turns every heal...

Coding & AlgorithmsGrids & MatricesGraphs
6
0
96 people solved
Oct 16, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Resolve Variable Assignments With Addition and Subtraction, Flagging Unresolvable Ones

You are given a list of assignment lines. Each line assigns to a variable either an integer or an expression that adds and subtracts integers and othe...

Coding & AlgorithmsGraphsParsing & Interpreters
0
0
18 people solved
Nov 10, 2026
Instacart logo
Instacart
Medium
Software Engineer

Order Shopping Cart Items for Pickup: Frozen Last, Minimum Walking Distance

Return the items in a customer's shopping cart in the order a shopper should pick them up in the store. Frozen items must come after all other items, ...

Software Engineering FundamentalsGreedySorting
2
0
27 people solved
Oct 30, 2026
Rippling logo
Rippling
Medium
Software Engineer

Task Manager: Validated addTask and Filtered, Sorted printTasks With Child Tasks

Implement an in-memory task manager in Java with two operations, addTask and printTasks. In the reported version a task is a Java record with the fiel...

Software Engineering FundamentalsLow-Level Design (OOP)Sorting
2
0
24 people solved
Nov 2, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Lowest Common Manager of a Group of Employees in an Org Chart

A company's org chart is a tree. The CEO is at the top, and every other person reports directly to exactly one manager. A person's team is that person...

Coding & AlgorithmsTrees
99
1
787 people solved
Oct 2, 2026
Nextdoor logo
Nextdoor
Medium
Software EngineerSenior+

File-System Tree from a Record Stream Where Children Can Arrive Before Parents

Build an in-memory file system from a stream of input records. Each record describes one file or directory and names its parent, so together the recor...

Software Engineering FundamentalsTreesTesting & Quality
1
0
28 people solved
Oct 26, 2026
Meta logo
Meta
Hard
Data Engineer

Task Manager: Filter, Deduplicate, Multi-Key Sort, Then Order Subtasks Around Parents

Implement a TaskManager class. Its constructor receives a list of existing tasks, and its method print_prioritized_tasks() prints the tasks that pass ...

Software Engineering FundamentalsSortingTrees
1
0
16 people solved
Nov 7, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Sizes of 4-Connected Foreground Regions in a Binary Image, in Scan Order

An image is represented by a rectangular binary matrix image with m rows and n columns. A cell holding 1 is a foreground pixel, and a cell holding 0 i...

Coding & AlgorithmsGrids & Matrices
40
0
327 people solved
Sep 30, 2026
OpenAI logo
OpenAI
Hard
Software EngineerNew Grad

Count Ordered Four-Shop Road Paths That Visit One Shop of Each Type

You need to buy school supplies at four different kinds of shop: a bookshop for a workbook, a school-supply shop for glue, a sports store for a pair o...

Coding & AlgorithmsGraphs
11
0
161 people solved
Oct 3, 2026
Visa logo
Visa
Medium
Software EngineerSenior+

Maximize Index-Weighted Array Sum When Each Element Swaps at Most Once

You are given an integer array nums. You may swap elements, choosing any two positions for each swap, but every element may take part in at most one s...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
16
0
151 people solved
Oct 2, 2026
Applied Intuition logo
Applied Intuition
Hard
Software Engineer

Merge Overlapping Collinear Lane Segments Given as Integer Point Lists

Lane geometry is given as a list of straight lane segments. Each segment is a list of integer points [x, y] that all lie on one straight line, listed ...

Coding & AlgorithmsIntervals & SchedulingMath & Number Theory
8
0
161 people solved
Oct 8, 2026
Amazon logo
Amazon
Medium
Software Engineer

Which Recipes Can Be Made When Ingredients Can Themselves Be Recipes

A kitchen has an unlimited stock of some basic supplies and a book of recipes. Each recipe has a unique name and a list of ingredients. An ingredient ...

Coding & AlgorithmsGraphs
31
5
266 people solved
Oct 9, 2026
Brex logo
Brex
Medium
Software EngineerSenior+

Design a Scheduler with Prerequisites and Target Execution Plans

Design a task scheduler in three stages: support addTask and getNextTask; add prerequisites and task completion; then return an execution plan for a r...

Software Engineering FundamentalsJob Scheduling & WorkflowsGraphs
2
0
23 people solved
Oct 28, 2026
ByteDance logo
ByteDance
Medium
Software EngineerNew Grad

Shortest One-Letter-at-a-Time Transformation Between Two Words

You are given two words, begin_word and end_word, and a list of words word_list. All of the words have the same length and consist of lowercase Englis...

Coding & AlgorithmsGraphs
3
0
33 people solved
Oct 24, 2026
Coinbase logo
Coinbase
Hard
Software Engineer

Pick Mempool Transactions for a Block with Parent Dependencies and CPFP

A mempool holds transactions that are waiting to be included in a block. Each transaction has an id, a fee that the miner collects for including it, a...

Software Engineering FundamentalsGreedyGraphs
8
0
109 people solved
Oct 14, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

N-ary Tree Height After Deleting Nodes and Reattaching Their Children

A rooted tree has n nodes numbered 0 to n - 1, and each node can have any number of children. Node 0 is the root. You are given the tree as a parent a...

Coding & AlgorithmsTrees
14
0
113 people solved
Oct 12, 2026
Pinterest logo
Pinterest
Medium
Data Engineer

Settle Shared-Expense Debts, Then Reduce the Number of Payments

A group of people share expenses and record what they owe one another as a list of debts. Write code that tells them how to settle up: a list of payme...

Software Engineering FundamentalsGreedyHeaps & Priority Queues
12
0
145 people solved
Oct 12, 2026
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+

Fewest-Edge Distance Between Two Nodes in a Directed Acyclic Graph

This came as a follow-up to ordering the nodes of a dependency graph. You are given a directed acyclic graph with n nodes labeled 0 to n - 1, a list o...

Coding & AlgorithmsGraphs
14
0
119 people solved
Sep 29, 2026
Previous123...32Next
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