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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
476
Companies
980
Updated
11.10.2026
476 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
Cresta logo
Cresta
Medium
Software Engineer

Count the Leaves Left on a Grid After a Sequence of Wind Gusts

A rectangular field is divided into a grid of cells, and each cell holds some number of leaves. A sequence of wind gusts then blows across the field. ...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
7
0
94 people solved
Oct 6, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Fault-Tolerant Task Queue with Retry Cooldowns, a Dead-Letter Queue and Dependencies

Implement an in-memory task queue that tolerates worker failures. Workers take tasks from the queue; when a worker fails or is preempted while holding...

Software Engineering FundamentalsData Structure DesignGraphs
14
0
169 people solved
Oct 9, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Count requests dropped when incoming requests exceed available server threads

A server receives a sequence of events, given as an integer array events and processed from left to right: - A positive value k means k new threads be...

Coding & AlgorithmsSimulation & State Machines
15
0
111 people solved
Oct 6, 2026
Optiver logo
Optiver
Hard
Software EngineerIntern

Design an Event-Driven CPU Overheat Controller

Design an Event-Driven CPU Overheat Controller Design an OverheatPreventionController that simulates multiple processor cores without physical sensors...

Software Engineering FundamentalsSimulation & State Machines
532
4
4980 people solved
Jul 2, 2026
Roblox logo
Roblox
Easy
Software Engineer

Find Matching Runs, Clear Them Once, and Apply Gravity

Given an m-by-n grid, find every horizontal and vertical run of at least three equal values. Report a run as[value,length]; for example, four consecut...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
2
0
21 people solved
Oct 17, 2026
Asana logo
Asana
Medium
Software Engineer

Object-Oriented Design of a Two-Player Chess Game and Its Move Rules

Design a program that lets two people play chess against each other. The interviewer is looking for the object model: the classes, what each is respon...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
7
1
78 people solved
Sep 10, 2026
Hudson River Trading logo
Hudson River Trading
Easy
Software EngineerNew Grad

Ball Position in a Tilting Maze After Timed Tilt Events

A game board holds a rectangular maze and a single ball. At any moment the board is in one of five states: "up", "down", "left", "right" or "flat". Wh...

Coding & AlgorithmsSimulation & State Machines
61
0
661 people solved
Jul 30, 2026
Snowflake logo
Snowflake
Easy
Software Engineer

Nearest Person-to-Cake Distance and Greedy Closest-Pair Assignment Total

You are given an array A of length n in which every element is 0 (an empty spot), 1 (a person) or 2 (a cake). The distance between positions i and j i...

Coding & AlgorithmsHeaps & Priority QueuesArrays & Strings
2
0
23 people solved
Oct 21, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Referral Credit Tracker with Indirect Referrals

Build a referral credit tracker with account creation, threshold queries, deterministic ordering, and correct credit propagation through indirect refe...

Coding & AlgorithmsData Structure DesignSorting
10
0
213 people solved
Sep 6, 2026
Airbnb logo
Airbnb
Medium
Software Engineer

Task Management System: Priorities, Name Search, User Quotas and Expiring Assignments

Implement an in-memory task management system in an online, four-level progressive coding assessment. Each level adds requirements on top of the previ...

Software Engineering FundamentalsLow-Level Design (OOP)
31
0
285 people solved
Sep 12, 2026
Google logo
Google
Easy
Software EngineerIntern

Evenings Needed to Read Chapters in Order Under Nightly Time Budgets

A book has M chapters that must be read in order, from the first chapter to the last, without skipping any. Reading chapter K takes chapter[K] minutes...

Coding & AlgorithmsSimulation & State Machines
1
0
25 people solved
Oct 26, 2026
Atlassian logo
Atlassian
Medium
Software EngineerSenior+ Locked

Design a Music Player with Queue, Loop, and Shuffle

Design music-player objects and state transitions for play, pause, queue, looping, and shuffle, with stubbed audio and deterministic tests.

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
26
1
251 people solved
Sep 3, 2026
Mercor logo
Mercor
Medium
Machine Learning Engineer

Decide whether every car can park given preferred spots and forward-only overflow

A one-way street has n parking spots in a row, numbered 0 to n - 1 in the direction of travel. Cars arrive one at a time, in the order given by prefer...

Coding & AlgorithmsSimulation & State Machines
36
0
243 people solved
Sep 25, 2026
Meta logo
Meta
Medium
Software EngineerSenior+

Schedule Multi-Step Dish Recipes Across Three Chefs to Finish an Order Fastest

In an AI-assisted coding round, you build a scheduler for a kitchen. The kitchen has to cook one order made up of several dishes. Each dish follows a ...

Software Engineering FundamentalsGreedy
1
0
12 people solved
Nov 1, 2026
Stripe logo
Stripe
Hard
Software Engineer Locked

Design a Ledger with Separate Acceptance, Limit, and Settlement States

Implement process_ledger(commands), an ordered account ledger that initializes accounts, accepts deposits, and returns comma-separated balance query r...

Software Engineering FundamentalsPayments & LedgersSimulation & State Machines
98
1
770 people solved
Sep 17, 2026
IBM logo
IBM
Medium
Software Engineer

Count Employees With Unbroken Renewable Access at the Last Timestamp

An access system grants employees time-limited access. Employee i has a fixed access duration limits[i]. The system receives a log of access settings,...

Coding & AlgorithmsSimulation & State Machines
16
0
176 people solved
Sep 30, 2026
Stripe logo
Stripe
Hard
Software EngineerNew Grad

Design a Fixed-Position Payment Command State Machine

Design the parser and object-oriented state-machine core for a payment command interface. The reported commands use a fixed number of argument positio...

Software Engineering FundamentalsLow-Level Design (OOP)Parsing & Interpreters
39
0
311 people solved
Aug 1, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Dasher Daily Pay from Order Events with Double Rate in Peak Windows

A Dasher (a delivery driver) is paid for the time spent delivering orders. You are given the order events for one Dasher's day. At any moment, the act...

Coding & AlgorithmsIntervals & Scheduling
26
2
252 people solved
Sep 23, 2026
Cohere logo
Cohere
Medium
Machine Learning Engineer Locked

Replace a Heuristic Terminal Text Game's Python Logic With LLM Calls

A live coding round: replace the heuristic Python implementation of a terminal text game with one driven by an LLM while keeping the game playable end...

Software Engineering FundamentalsLLM ApplicationsAI-Assisted Development
11
0
118 people solved
Sep 22, 2026
OpenAI logo
OpenAI
Medium
Applied Scientist

Extensible card-hand ranking: three of a kind, flush, pair and a discard rule

Build a small card game in code. Each player holds a hand of cards; the program ranks the hands, decides the outcome, and returns a log of the whole p...

Software Engineering FundamentalsLow-Level Design (OOP)
12
0
116 people solved
Sep 17, 2026
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