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

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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
Amazon logo
AmazonMetaBloomberg

Also asked at Bloomberg, Google, Microsoft

Easy
Software Engineer

Count Students Left When Lunch Service Stops

Problem Students queue with preferences 0 or 1. sandwiches lists a stack from top to bottom, using the same two types. A front student takes a matchin...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
0
0
9 people solved
Salesforce logo
Salesforce
Medium
Software Engineer

Sum a Matrix After Row and Column Assignments

Sum a Matrix After Row and Column Assignments An n x n matrix starts with every entry equal to zero. You are given a 0-indexed array queries, where ea...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
0
0
6 people solved
Airbnb logo
Airbnb
Medium
Software Engineer

Workspace Credit Ledger: Transfers, Top-K, Scheduled Transfers, Merges, Balance History

Build an in-memory system that manages workspaces holding credit, much like bank accounts that can send money to one another. The task is a timed onli...

Software Engineering FundamentalsLow-Level Design (OOP)Binary Search
2
0
24 people solved
Jul 16, 2026
Google logo
Google
Hard
Software EngineerNew Grad Locked

Compute Turnstile Crossing Times

This question evaluates proficiency in queue simulation, event-driven scheduling, and handling priority and tie-breaking rules while achieving linear ...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
12
1
128 people solved
May 4, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Update a Neuron Grid

You are given an m x n integer matrix neurons. - A cell is a firing neuron if its value is 0. - A cell is a non-firing neuron if its value is greater ...

Coding & AlgorithmsSimulation & State Machines
17
1
320 people solved
Feb 22, 2026
CloudKitchens logo
CloudKitchens
Medium
Software Engineer

Design real-time kitchen order fulfillment system

Backend Engineering Challenge: Real-time order fulfillment Design and implement (conceptually) a single-process, real-time backend system for fulfilli...

System DesignData Structure DesignConcurrency
25
0
461 people solved
Feb 11, 2026
Meta logo
Meta
Medium
Software Engineer

Solve Four Online Assessment Problems

Complete the following four independent coding tasks. For each task, write a function that returns the requested result. 1. Find the best value index ...

Coding & AlgorithmsGrids & MatricesIntervals & Scheduling
16
0
132 people solved
Mar 19, 2026
Citadel logo
Citadel
Medium
Software EngineerIntern

Simulate 2048 and pack board into uint64

Problem: 2048 move simulation + board compression You are implementing part of the 2048 game on a fixed 4×4 grid. Part A — Simulate a move Given a 4×4...

Coding & AlgorithmsSimulation & State MachinesBit Manipulation
36
0
440 people solved
Feb 11, 2026
Netflix logo
Netflix
Medium
Software Engineer

Dedupe titles in per-shelf viewport

You are rendering a streaming app home page. - The home page consists of shelves displayed from top to bottom. - Each shelf contains a list of titleId...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
19
1
163 people solved
Jan 22, 2026
Epic Systems logo
Epic Systems
Medium
Software Engineer Locked

Encode Letters with a Telephone Keypad

Encode letters as telephone keypad presses, ignoring case and spaces and inserting a separator whenever consecutive encoded letters share the same key...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
3
0
36 people solved
Aug 30, 2026
Pinduoduo logo
Pinduoduo
Medium
Software Engineer

Clockwise Spiral Matrix Traversal That Turns at Blocked Cells

Given an m x n matrix of integers, return its values in clockwise spiral order: start at the top-left cell, go right along the top row, down the right...

Coding & AlgorithmsGrids & MatricesSimulation & State Machines
2
0
17 people solved
Jul 17, 2026
Google logo
GoogleAmazonBloombergMicrosoft

Also asked at Bloomberg, Microsoft

Medium
Software Engineer

Arrange a Deck for Increasing Reveal-and-Rotate Order

Problem Reorder the unique card values in deck so this procedure reveals them in increasing order: remove and reveal the top card, then move the next ...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
0
0
10 people solved
Google logo
Google
Medium
Software EngineerSenior+ Locked

Implement Multi-Player Tic-Tac-Toe

Implement multi-player Tic-Tac-Toe on a configurable board with strict turn order, validated moves, and a fixed three-mark win condition. Define exact...

Coding & AlgorithmsLow-Level Design (OOP)Simulation & State Machines
15
0
141 people solved
Jul 17, 2026
Salesforce logo
Salesforce
Medium
Software Engineer

Implement a traffic-light UI with JS

Frontend Coding: Traffic Light Build a simple traffic light component using HTML + CSS + JavaScript. Requirements - Render a vertical traffic light wi...

Coding & AlgorithmsJavaScript & TypeScriptSimulation & State Machines
20
0
280 people solved
Jan 22, 2026
Google logo
GoogleAmazonIBM

Also asked at IBM, Meta, Microsoft, Bloomberg, TCS

Easy
Software Engineer

Maximum Drinks from Full Bottles and Empty-Bottle Exchanges

Problem Begin with numBottles full bottles. Drinking one yields one empty bottle. Exchange numExchange empty bottles for one full bottle as often as p...

Coding & AlgorithmsSimulation & State MachinesMath & Number Theory
0
0
7 people solved
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Design a pizza ordering system

Design the core object-oriented model for a pizza ordering system used by a small restaurant. The system should allow customers to: - browse a menu of...

Software Engineering FundamentalsLow-Level Design (OOP)
19
1
317 people solved
Oct 24, 2025
Apple logo
Apple
Medium
Software EngineerIntern

Solve mixed coding tasks from interviews

Solve the following interview-style coding problems (you may choose any programming language unless specified). Provide correct logic and handle edge ...

Coding & AlgorithmsTreesSorting
19
0
209 people solved
Feb 9, 2026
Google logo
GoogleWaymoMeta

Also asked at Meta, LinkedIn, TikTok, Microsoft, Amazon

Medium
Machine Learning Engineer

Solve meeting scheduling and robot cleaning tasks

You are given two independent coding problems. --- Problem 1: Prioritized Meeting Scheduling You are asked to schedule meetings in a single meeting ro...

Coding & AlgorithmsDynamic ProgrammingBacktracking & Recursion
19
1
230 people solved
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Execute Dependency-Constrained Work at Scale

Explain concurrent execution of a large dependency graph with correct readiness, failure handling, bounded workers, and measured optimization.

Software Engineering FundamentalsJob Scheduling & WorkflowsConcurrency
4
0
34 people solved
Aug 25, 2026
Bloomberg logo
BloombergGoldman SachsGoogle

Also asked at Google, Microsoft, Amazon

Easy
Software Engineer

Check a Robot's Final Displacement

Problem A robot begins at (0,0). Each character in moves takes one equal-length step: R right, L left, U up, D down. Directions are absolute and do no...

Coding & AlgorithmsSimulation & State MachinesArrays & Strings
0
0
11 people solved
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