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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Millennium logo
Millennium
Medium
Software EngineerIntern

GCC, Clang, LLVM, and C++ Compiler Optimization

Compare GCC with LLVM in a C++ compilation workflow. Explain where Clang fits, how source code becomes machine code, and how compiler optimization can...

Software Engineering FundamentalsProgramming LanguagesDebugging
3
0
46 people solved
Apr 26, 2026
Gusto logo
Gusto
Medium
Software Engineer Locked

Distribute Money Fairly Under Recipient Caps

Implement a capped fair distribution of integer currency units while respecting each recipient's owed amount and original order. Formalize a unique fa...

Coding & Algorithms
3
0
59 people solved
Aug 1, 2026
Lyft logo
Lyft
Medium
Data Scientist Locked

Investigate Metric Drops and Coupon Retention

This question evaluates a data scientist's skills in product analytics, metric instrumentation and validation, causal inference, cohort selection, exp...

Analytics & ExperimentationMetric DiagnosticsExperiment Design (A/B Testing)
35
0
623 people solved
May 28, 2026
Google logo
GoogleAmazonMicrosoft
Easy
Software Engineer

Write an Integer Using Base Seven Digits

Problem Return the base-seven string for num, using digits 0 through 6 and a leading minus sign only for negative values. Zero is represented by "0". ...

Coding & AlgorithmsMath & Number Theory
1
0
15 people solved
Instacart logo
Instacart
Medium
Software EngineerSenior+

Senior Behavioral Round: Project Deep Dive, Mentoring, Trade-offs and Disagreement

A behavioral round in a senior-level onsite loop covers four themes: a project you worked on, mentoring, a trade-off, and a disagreement. Answer each ...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
1
0
26 people solved
Sep 10, 2026
Apple logo
Apple
Medium
Product Manager

Go or No-Go on a Social Layer for iMessage, and Scoping the First Bet

You are a product manager working on Messages at Apple. iMessage is Apple's messaging service, built into the Messages app on iPhone, iPad and Mac. Re...

Product Design & StrategyProduct StrategyMetrics & KPIs
1
0
11 people solved
Sep 16, 2026
Furtherai logo
Furtherai
Medium
Machine Learning EngineerSenior+

Walk Through an AI Project You Built: Decisions, Alternatives, Trade-offs, Impact

Pick one project you built in which AI, such as a machine learning model or a large language model, played a central role, and walk the interviewers t...

Behavioral & LeadershipProject Deep Dive
2
0
18 people solved
Aug 30, 2026
Rillet logo
Rillet
Medium
Backend Engineer Locked

Distribute Annual Revenue Across Twelve Months

Allocate an annual revenue amount in cents evenly across twelve months without floating-point arithmetic. Preserve the total exactly and assign any re...

Coding & Algorithms
13
0
125 people solved
May 12, 2026
Robinhood logo
Robinhood
Medium
Software Engineer

Implement Calendar Layout and String Packing

The interview reportedly included two separate coding exercises: 1. Day-view calendar layout - You are given a list of events for a single day. Eac...

Coding & AlgorithmsGreedyIntervals & Scheduling
9
0
162 people solved
Mar 16, 2026
Airbnb logo
Airbnb
Hard
Software EngineerSenior+

Find valid split-stay listing combinations

You are building a feature that suggests a split stay: a guest stays in one home for the first part of a trip, then switches to a second home for the ...

Coding & AlgorithmsArrays & Strings
184
2
1191 people solved
Dec 20, 2025
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg, TCS

Easy
Software Engineer

Count Strictly Smaller Array Occurrences for Each Value

Problem For each original position i, return how many array entries are strictly less than nums[i]. Count duplicate smaller entries separately, but do...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
CVS Health logo
CVS Health
Easy
Software EngineerSenior+

Design and Implement Per-Client Rate Limiting

Implement a rate limiter that restricts how many requests each client or key may make within a specified time window. Requests for different keys must...

Software Engineering FundamentalsRate LimitingConcurrency
1
0
13 people solved
Jul 25, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

How to stream a large file to 1000 hosts fastest

This question evaluates system design and distributed-systems skills, especially bandwidth and bottleneck analysis, replication and pipelining trade-o...

System DesignFile & Media StorageSystem Design Fundamentals
268
1
2610 people solved
Mar 1, 2026
Decagon logo
Decagon
Medium
Software Engineer

Solve 3x3 Tic-Tac-Toe with Backtracking: Perfect-Play Result and Best Move

Write a program that solves 3×3 tic-tac-toe with backtracking, that is, by trying a move, searching everything that can follow it, and undoing the mov...

Software Engineering FundamentalsBacktracking & RecursionSimulation & State Machines
3
0
48 people solved
Apr 12, 2026
Stripe logo
Stripe
Medium
Data Scientist

Evaluate Stripe Capital Lending Strategy

Stripe is considering expanding Stripe Capital, a lending product for existing merchants on the platform. Eligible merchants receive a pre-qualified w...

Analytics & ExperimentationBusiness Case AnalysisMetric Diagnostics
22
0
225 people solved
Nov 29, 2025
Amazon logo
AmazonAndurilBloomberg

Also asked at Bloomberg, Google, Microsoft, Adobe, Deshaw, Meta, IBM, Zeta Global, TikTok, PhonePe

Medium
Software Engineer

Find One Heater Radius That Reaches Every House

Find One Heater Radius That Reaches Every House The positions of houses and heaters lie on a horizontal line. Every heater uses the same nonnegative w...

Coding & AlgorithmsBinary SearchSorting
0
0
8 people solved
Meta logo
Meta
Medium
Software Engineer Locked

Count Subarrays with a Target Sum

Count contiguous subarrays whose sum equals a target in O(n) time, even when values are negative or zero. Use prefix-sum frequencies to count valid st...

Coding & Algorithms
6
0
114 people solved
Aug 8, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Convert Sampled Call Stacks into Start and End Events

Convert a sequence of sampled call stacks into inferred function start and end events. Compare adjacent stacks by their common prefix, ending frames t...

Coding & AlgorithmsStacks & QueuesArrays & Strings
8
0
85 people solved
Mar 30, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Find a secret word via match feedback

Word Guessing Game (Mastermind-style) You are given a list of unique candidate words wordlist. All words have the same length L and contain only lower...

Coding & AlgorithmsGreedy
16
0
321 people solved
Dec 15, 2025
Google logo
Google
Medium
Product Manager

Lay Out a Five-Year Plan to Make Waymo's Robotaxi Business Profitable

Imagine you have just been named CEO of Waymo, the Alphabet company that runs a driverless ride-hailing service. Lay out the strategy you would follow...

Product Design & StrategyProduct StrategyBusiness Case Analysis
2
0
20 people solved
Sep 28, 2026
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