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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
Amazon logo
Amazon
Medium
Product Manager

Amazon Product Sense: Propose and Prioritize One Shopping Experience Improvement

You are a product manager at Amazon. Propose one feature that would improve the experience of using Amazon. Explain which part of Amazon and which use...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
11 people solved
May 22, 2026
Imc logo
Imc
Medium
Software Engineer

Find k-th recipient in command propagation order

Chain of Command (k-th Receiver in DFS-by-Child-Id Order) A company org chart forms a rooted tree with n people (nodes), labeled 1..n. You are given a...

Coding & AlgorithmsTreesSorting
28
0
359 people solved
Dec 15, 2025
Google logo
GoogleAmazonBloombergSnapchat

Also asked at Bloomberg, Snapchat

Easy
Software Engineer

Fewest Keypresses After Remapping Distinct Letters

Fewest Keypresses After Remapping Distinct Letters You are given a string word whose lowercase English letters are all distinct. You may remap the eig...

Coding & AlgorithmsGreedyMath & Number Theory
0
0
8 people solved
Microsoft logo
Microsoft
Medium
Machine Learning Engineer Locked

Design a Retrieval-Grounded Local Sports News Recommender

Design a retrieval-grounded system that recommends and summarizes fresh local sports news. Cover ingestion, hybrid retrieval, personalization, prompts...

ML System Design
4
0
46 people solved
Jun 21, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Microsoft, Meta, TikTok, Deshaw, Media.net

Medium
Software Engineer

Restore a BST after Two Stored Values Were Exchanged

Problem A valid binary search tree had the stored values of exactly two nodes exchanged by mistake. Restore it by correcting those values, while leavi...

Coding & AlgorithmsTrees
0
0
9 people solved
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Predict future time-series values

Predict future time-series values End-to-End Time-Series Forecasting (PyTorch) Context You are given one or more regularly sampled numeric time series...

ML System DesignTime Series & ForecastingML Coding
40
0
434 people solved
Aug 4, 2025
Netflix logo
Netflix
Medium
Software Engineer

Return valid task order from prerequisites

You are given N tasks labeled 0..N-1 and a list of directed dependency pairs [(a,b), ...] meaning task a must be done before task b. 1) Return one val...

Coding & AlgorithmsGraphs
15
0
208 people solved
Jan 30, 2026
Google logo
GoogleMicrosoftBloomberg

Also asked at Bloomberg, Amazon, Accenture, Meta

Easy
Software Engineer

Find the Next Number with a Divisible Digit Product

Find the Next Number with a Divisible Digit Product Problem Given positive integers n and t, return the smallest integer greater than or equal to n wh...

Coding & AlgorithmsMath & Number Theory
0
0
10 people solved
DoorDash logo
DoorDash
Hard
Software EngineerSenior+

Design review system with voting and rewards

Design a Scalable Product Review System with Voting and Rewards You are designing a reviews feature for a large e-commerce marketplace. Customers can ...

System DesignSystem Design FundamentalsDistributed Transactions & Idempotency
44
0
456 people solved
Sep 6, 2025
Google logo
GoogleBloombergPinterest

Also asked at Pinterest, Amazon, Uber, Deshaw, Citadel

Medium
Software Engineer

Scores and Top-K Totals on a Leaderboard

Problem Implement Leaderboard, initially empty. addScore(playerId,score) adds to an existing player's score or creates that player with score. top(K) ...

Coding & AlgorithmsData Structure DesignSorting
0
0
9 people solved
DoorDash logo
DoorDash
Hard
Data Scientist

Calculate Order Request Metrics

You are working with DoorDash order and delivery-request data. Write SQL to answer the questions below. Tables: 1. orders - order_id BIGINT, primary k...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
7
0
102 people solved
Apr 25, 2026
Gusto logo
Gusto
Medium
Software EngineerSenior+ Locked

Fairly Distribute Money With Limits

This question tests practical algorithm design around greedy distribution with per-element constraints and iterative redistribution. It evaluates a ca...

Coding & Algorithms
3
0
53 people solved
Jun 3, 2026
TikTok logo
TikTok
Medium
Software Engineer

Delete nodes in linked list and binary tree

You are asked to solve two short coding tasks. You may assume standard node definitions: - Singly linked list node: val, next - Binary tree node: val,...

Coding & AlgorithmsLinked ListsTrees
6
0
130 people solved
Feb 11, 2026
TikTok logo
TikTok
Medium
Product Manager

TikTok Shop: Helping Shoppers Get Answers From Merchants Before and After Purchase

TikTok lets people buy products without leaving the app: merchants list items in TikTok Shop, and shoppers find them in short videos, livestreams and ...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
6 people solved
Sep 6, 2026
ByteDance logo
ByteDance
Medium
Software EngineerIntern Locked

Enumerate All Simple Directed Cycles

Enumerate distinct simple directed cycles using a canonical representation that handles rotations, opposite directions, and self-loops.

Coding & AlgorithmsGraphsBacktracking & Recursion
3
0
43 people solved
Aug 23, 2026
Amazon logo
AmazonGoogle
Medium
Software Engineer

Maximize Binary Row Values with Row and Column Toggles

Problem In the binary rectangular grid, a move flips every bit in one chosen row or one chosen column. Interpret each row as a binary number with its ...

Coding & AlgorithmsGreedyBit Manipulation
0
0
7 people solved
Meta logo
MetaBloombergGoogle

Also asked at Google, Amazon, Microsoft

Medium
Software Engineer

Construct Every BST Shape on Consecutive Keys

Problem Construct every structurally distinct binary search tree containing exactly the keys 1 through n, each once. Return the tree roots in any orde...

Coding & AlgorithmsTreesBacktracking & Recursion
1
0
12 people solved
Engelhart logo
Engelhart
Medium
Software Engineer

Exposing a Python Function as a REST Endpoint with FastAPI and Unit Testing It

Explain how you expose a Python function to other programs as a REST API endpoint, and how you unit test code like this. The questions came in the fun...

Software Engineering FundamentalsAPI DesignTesting & Quality
1
0
14 people solved
Sep 19, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Reason About Dependency Loading with Topological Sort

Explain dependency loading with graph construction, topological sorting, cycle detection, and explicit handling of multiple valid load orders.

Software Engineering Fundamentals
12
0
100 people solved
Aug 16, 2026
OpenAI logo
OpenAI
Medium
Product Manager

Designing a Revenue Model for ChatGPT Across Consumers and Businesses

An interviewer asks you to lay out how ChatGPT, OpenAI's AI assistant, should make money. Propose a monetization strategy: which users or customers pa...

Product Design & StrategyGrowth & MonetizationAI Product Management
0
0
7 people solved
Sep 2, 2026
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