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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
Uber logo
Uber
Hard
Software Engineer

Implement three interview-style coding tasks

You are given three separate coding tasks, all focused on algorithm and data-structure design. --- Task 1: Longest Bounded-Difference Subarray You are...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
19
0
163 people solved
Nov 11, 2025
Amazon logo
Amazon
Easy
Software Engineer Locked

Find Unique Target-Sum Pairs

This question evaluates array-processing skills, correctness in handling duplicate values, and the ability to identify unique value pairs whose sums m...

Coding & Algorithms
4
0
48 people solved
May 2, 2026
Netflix logo
Netflix
Medium
Software Engineer

Build and optimize a video playlist component

Build and optimize a video playlist component Design and implement a video playlist component in React (functional components) that meets the followin...

System DesignReact & UI FrameworksState Management
27
0
221 people solved
Aug 1, 2025
Meta logo
Meta
Medium
Software Engineer

Design real-time live comments

Design a real-time comment system for live video (e.g., Facebook Live comments). Requirements: - Viewers post comments; all viewers see new comments q...

System Design
6
0
52 people solved
Feb 25, 2026
Google logo
Google
Hard
Data Scientist Locked

Build and evaluate illegal-video classifier

This question evaluates competency in end-to-end Machine Learning system design, including multimodal modeling (vision, audio, text), data engineering...

Machine LearningML System DesignAI Safety & Alignment
15
0
115 people solved
Oct 13, 2025
Pinterest logo
Pinterest
Medium
Data Scientist

Estimate Highway Billboard Impressions Using Traffic Data

Estimating Highway Billboard Reach and Impressions An out-of-home advertising team wants to estimate reach and impressions for a single highway billbo...

Statistics & MathSampling & EstimationBusiness Case Analysis
40
0
207 people solved
Jul 12, 2025
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Compute min operations to transform integers

Given integers A and B, transform A into B using the minimum number of operations. Allowed operations: ( 1) subtract 1 from the current value; ( 2) mu...

Coding & Algorithms
8
0
106 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer

Implement two array-cost minimization algorithms

Implement two array-cost minimization algorithms that appeared back-to-back in an AWS SDE online assessment. Each can be solved independently. Part 1 ...

Coding & Algorithms
16
0
120 people solved
Aug 7, 2025
Amazon logo
Amazon
Medium
Software Engineer

Maximum Gap Between Consecutive Workers' Stations

Maximum Gap Between Consecutive Workers' Stations You are given strings skill and station. Worker i requires the skill skill[i], and station j support...

Coding & AlgorithmsGreedyTwo Pointers & Sliding Window
0
0
6 people solved
Apple logo
Apple
Medium
Analytics Engineer

Implement most frequent key without using max()

You are given the following Python class skeletons. The Parent class precomputes: - self.l: the original list - self.lf: a set of the stringified item...

Coding & Algorithms
9
0
110 people solved
Dec 30, 2025
TikTok logo
TikTok
Medium
Software Engineer

Flatten object & Promise.all

Question Given a nested JavaScript object, write a function to flatten it so that nested keys are converted to a single-level path (e.g., {a:{b:1}} ->...

Coding & Algorithms
24
0
110 people solved
Jul 29, 2025
Oracle logo
Oracle
Medium
Software Engineer Locked

Describe a System Improvement You Identified and Delivered

Describe a system improvement you identified and delivered, from the original behavior and discovery through design, rollout, and evidence that the ch...

Behavioral & Leadership
1
0
18 people solved
Aug 7, 2026
Google logo
Google
Medium
Product Manager

Launching Gemini Actions That Send Emails and Make Purchases Despite Model Errors

You are a PM on Gemini at Google. Design a Gemini product that acts for the user where a mistake is costly, such as replying to an email or paying for...

Product Design & StrategyAI Product ManagementAI Agents
0
0
5 people solved
Jul 11, 2026
Disney logo
Disney
Medium
Software Engineer Locked

Build a sortable, searchable movie list UI

This question evaluates frontend engineering competencies such as UI component architecture, state management, asynchronous data fetching, client-side...

Software Engineering FundamentalsReact & UI FrameworksState Management
12
0
106 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Software Engineer

Compute longest rising path in a grid

Given an m×n grid of integers, find the length of the longest path where each step moves up, down, left, or right to a strictly larger value. Return t...

Coding & Algorithms
8
0
96 people solved
Sep 6, 2025
HubSpot logo
HubSpot
Medium
Software EngineerSenior+

Evaluate an Integer Arithmetic Expression Written in Prefix (Polish) Notation

In prefix notation, also called Polish notation, every operator is written before its two operands, so parentheses are never needed. For example, the ...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
16 people solved
Jan 2, 2026
DoorDash logo
DoorDash
Medium
Data Scientist

Assess Adding Bicycle Dashers

DoorDash is considering allowing bicycle couriers (bike dashers) to fulfill deliveries in a city that is currently served mostly by car/scooter dasher...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
5
0
106 people solved
Feb 2, 2026
Google logo
Google
Easy
Software Engineer Locked

Build a next-word frequency predictor

This question evaluates understanding of data structures and algorithms for frequency counting and associative lookups, including preprocessing-versus...

Coding & AlgorithmsData Structure Design
48
2
338 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Software Engineer

Count Distinct Values in a Sorted Array When K Is Small

Count Distinct Values in a Sorted Array When K Is Small Given an integer array sorted in nondecreasing order, return the number of distinct values. Le...

Coding & Algorithms
4
0
45 people solved
Mar 2, 2026
LinkedIn logo
LinkedIn
Medium
Data Scientist

Identify and Flag Bot Traffic in Online Forum

PVE +----------+-----------+ | memberId | timestamp | +----------+-----------+ | 101 | 169100123 | | 102 | 169100225 | | 101 | 16910030...

Data Manipulation (SQL/Python)
88
0
322 people solved
Jul 12, 2025
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