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
Machine Learning Engineer LockedFind shortest path in a maze grid
This question evaluates proficiency in graph traversal and shortest-path reasoning on grid-based data structures, testing skills in pathfinding, state...
Coding & Algorithms
10
0
139 people solved
Jan 21, 2026
Hard
Software EngineerCompute Exclusive Time from Stack Events
Compute Exclusive Time from Stack Events Given entry and exit events from one thread, compute the total exclusive running time of each function. The i...
Coding & Algorithms
0
0
12 people solved
Apr 16, 2026
Medium
Software EngineerSenior+Describe a Trade-off Design Change
Tell me about a time when you changed a system design because of an important trade-off. Explain the original design, the competing goals or constrain...
Behavioral & Leadership
10
0
179 people solved
Apr 16, 2026
Medium
Data ScientistIntern LockedCount Closed Islands
This question evaluates a candidate's understanding of grid-based connectivity and the ability to detect enclosed regions, testing skills in graph rep...
Coding & Algorithms
5
0
36 people solved
Jan 20, 2026
Easy
Software EngineerSolve Time-Window and Binary Swap Problems
This online assessment contained two coding problems: 1. Maximum requests in a time window You are given a non-decreasing integer array requestTimes...
Coding & Algorithms
6
0
71 people solved
Jan 20, 2026
Medium
Data ScientistHow would you evaluate Pixel issue alerts?
Meta is considering a new advertiser-facing ad management feature. When the system detects that an advertiser's Ads Pixel may be misconfigured or send...
Analytics & Experimentation
2
0
27 people solved
Jan 20, 2026
Medium
Software Engineer LockedFind a valid course order from prerequisites
This question evaluates understanding of graph algorithms, topological ordering, dependency resolution, and cycle detection within the Coding & Algori...
Coding & Algorithms
5
0
54 people solved
Jan 20, 2026
Hard
Software EngineerDemonstrate domain expertise and ramp-up ability
Behavioral interview prompt A hiring manager wants to assess your domain experience (e.g., advertising/marketing tech) and how you handle situations w...
Behavioral & Leadership
13
0
228 people solved
Jan 20, 2026
Hard
Software Engineer LockedModel data for an ads platform
This question evaluates a candidate's competency in data modeling and database architecture for large-scale advertising systems, including relational ...
System Design
32
0
314 people solved
Jan 20, 2026
Hard
Software Engineer LockedDesign command executor with undo
This question evaluates understanding of the command pattern, state and history management, failure handling, and appropriate data structure use for i...
Coding & Algorithms
10
0
71 people solved
Jan 20, 2026
Medium
Machine Learning Engineer LockedSimulate round-robin package assignment to servers
This question evaluates array-based simulation and control-flow skills for load distribution, including pointer management, modular wrap-around scanni...
Coding & Algorithms
7
0
60 people solved
Jan 20, 2026
Hard
Software EngineerDesign a Go music player with playlists
Design and Implement an Object-Oriented Music Player in Go You are asked to design and implement a small, object-oriented music management and playbac...
System Design
10
0
67 people solved
Sep 6, 2025
Medium
Software EngineerExplain motivations and company fit
Behavioral Interview: Motivation, Team Adaptation, and Ambiguity Context: Technical Screen for a Software Engineer (Behavioral & Leadership). Answer t...
Behavioral & Leadership
1
0
24 people solved
Sep 6, 2025
Medium
Software EngineerCompute minimum resources for overlapping intervals
You are given n tasks as half-open time intervals [start, end) on a single day. Determine the minimum number of identical servers needed so that no tw...
Coding & Algorithms
1
0
11 people solved
Sep 6, 2025
Hard
Software EngineerDesign an online marketplace for buying and selling
System Design: Online Marketplace Backend Context Design the backend for a two-sided online marketplace where sellers list items and buyers purchase t...
System Design
7
0
145 people solved
Sep 6, 2025
Medium
Software EngineerSolve word count, node, segmentation, stock tasks
You have four tasks: 1) Count words with explicit rules: Given a text document, return the number of words. First define precisely what qualifies as a...
Coding & Algorithms
3
0
43 people solved
Sep 6, 2025
Medium
Software EngineerDescribe current work and relocation willingness
Behavioral Screen: Responsibilities, Project Deep Dive, and Relocation You are interviewing for a Software Engineer role in a behavioral/leadership HR...
Behavioral & Leadership
6
0
82 people solved
Sep 6, 2025
Medium
Software EngineerIntroduce yourself and align with team focus
Behavioral Prompt: Self-Introduction and Recent Projects You are in a technical screen for a Software Engineer role on a team working on diffusion mod...
Behavioral & Leadership
9
0
67 people solved
Sep 6, 2025
Hard
Machine Learning EngineerList regularization methods and trade-offs
Question: Compare Regularization Techniques and When to Use Them Context: You are interviewing for a machine learning engineering role and are asked t...
Machine Learning
17
0
151 people solved
Sep 6, 2025
Medium
Software EngineerDevelop test plan and TDD for word search
Design a Comprehensive Test Plan and TDD Workflow for Word-Search Functions Context and Assumptions We are testing two grid-based word search function...
Software Engineering Fundamentals
5
0
54 people solved
Sep 6, 2025