Interview Questions
Practice the exact questions companies are asking right now.
Questions
10.0k
Companies
520
Updated
08.21.2026
10.0k Questions 520 Companies08.21.2026
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_
"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"
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
"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."
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
"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."
CarlosFull Stack, Shopify
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
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."
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
"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."
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
"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."
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
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
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
Role
Medium
Software EngineerLinux Host and Filesystem Fundamentals
Linux Host and Filesystem Fundamentals Clarifying Questions to Ask - Which Linux distribution and shell should be assumed? - Are privileged commands a...
Software Engineering Fundamentals
1
0
17 people solved
Apr 30, 2026
Hard
Software EngineerMerge Accounts by Shared Email
Merge Accounts by Shared Email Each account record begins with a person's name followed by one or more email addresses. Two records belong to the same...
Coding & Algorithms
0
0
8 people solved
Apr 30, 2026
Easy
Software EngineerCalculate Tax in a Progressive Marginal Tax System
Implement a progressive marginal tax calculator. Brackets are sorted (lower_cutoff, rate) pairs. Each portion of income is taxed at the rate for its b...
Coding & Algorithms
0
0
6 people solved
Apr 30, 2026
Easy
Data ScientistInternAnalyze the Accident-Rate Spike
A monthly line chart shows the accident rate for Uber trips in one city. The accident rate increases sharply from June through November, then drops qu...
Statistics & Math
16
0
134 people solved
Feb 12, 2026
Medium
Software EngineerIntroduce yourself and explain your job search goals
You are in a hiring-manager screen for a startup. 1) Give a concise self-introduction tailored to a senior engineering role. 2) Why are you looking fo...
Behavioral & Leadership
5
0
46 people solved
Feb 12, 2026
Medium
Software EngineerAnswer learning and challenge behavioral prompts
Behavioral prompts Prepare structured answers (with follow-ups) for the following: 1) Learning something new - Tell me about a time you had to learn s...
Behavioral & Leadership
17
0
128 people solved
Feb 12, 2026
Medium
Software EngineerAnswer common collaboration behavioral questions
Behavioral interview prompts Answer the following behavioral questions with concrete examples (use the STAR or CAR framework). Focus on your specific ...
Behavioral & Leadership
9
0
76 people solved
Feb 12, 2026
Easy
Software Engineer LockedProcess pod logs with global increments and pop-min
This question evaluates understanding of data structures—particularly priority queues/heaps—and techniques for efficiently handling global/bulk update...
Coding & Algorithms
15
0
173 people solved
Feb 12, 2026
Medium
Software EngineerDetect cycles and break them in pod dependencies
You are given dependencies between software pods. Each dependency is a directed edge u -> v meaning pod u must be built/installed before pod v. Part 1...
Coding & Algorithms
13
0
163 people solved
Feb 12, 2026
Medium
Software Engineer LockedDesign a device owner lookup service
This question evaluates a candidate's understanding of system design concepts such as real-time event ingestion, handling out-of-order and duplicate e...
System Design
6
0
95 people solved
Feb 12, 2026
Easy
Software Engineer LockedBuild a next-word frequency predictor
This question evaluates understanding of data structures and algorithms for frequency counting and associative lookups, including preprocessing-versus...
Coding & Algorithms
39
1
276 people solved
Feb 12, 2026
Easy
Software EngineerOptimize a dispatcher’s scheduling data structures
Algorithmic analysis / code review: Dispatcher for memory-constrained scheduling You are given a single-threaded in-memory dispatcher that reacts to t...
Software Engineering Fundamentals
29
0
263 people solved
Feb 12, 2026
Easy
Machine Learning EngineerHandle customer engagement and manager-rating questions
In a behavioral round focused on customer engagement / leadership principles, you are asked questions like: - “Tell me about a time you worked directl...
Behavioral & Leadership
13
0
258 people solved
Feb 12, 2026
Medium
Software EngineerParse code into operation triads IR
Problem: Operation-Triads Parsing (Mini Language) You are given a small, line-based programming language consisting of assignment statements and non-n...
Coding & Algorithms
5
0
73 people solved
Feb 12, 2026
Easy
Data ScientistReason about MAU error after user ID rehash
A product tracks activity using user_id from login events, and computes MAU as: - MAU (L30D) on date d = number of distinct user_id with at least one ...
Analytics & Experimentation
6
0
68 people solved
Nov 10, 2025
Hard
Machine Learning EngineerDesign an ML keyword recommendation pipeline
Design an ML keyword recommendation pipeline ML System Design: Typed Search Keyword Recommendations for an App Marketplace Goal Design an end-to-end M...
ML System Design
8
0
115 people solved
Jul 26, 2025
Easy
Software EngineerExplain debugging methodology for production issues
In a technical interview, you are asked: > What is your methodology when debugging or when something goes wrong? Describe a systematic approach you wo...
Software Engineering Fundamentals
7
0
75 people solved
Dec 8, 2025
Medium
Software EngineerDescribe common RTL lint warnings and errors
You are writing RTL (e.g., Verilog/SystemVerilog) and run a lint tool on your code. The tool reports items such as: - "Treat as black box" - Combinati...
Software Engineering Fundamentals
6
0
116 people solved
Dec 8, 2025
Medium
Software Engineer LockedDesign a Slack-like messaging system
This question evaluates system design and distributed-systems competencies, focusing on real-time messaging architecture, data modeling, scalability, ...
System Design
16
0
213 people solved
Dec 8, 2025
Medium
Software EngineerDesign a large-scale ticketing system
Design an online ticketing system similar to Ticketmaster that supports very high concurrency for popular events where many users try to purchase tick...
System Design
43
0
338 people solved
Dec 8, 2025