Interview Questions
Practice the exact questions companies are asking right now.
Questions
9.8k
Companies
511
Updated
08.16.2026
9.8k Questions 511 Companies08.16.2026
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 EngineerNew GradCount Grid Paths Without Three Consecutive Moves
Count Paths Without Three Consecutive Moves A frog starts at (0, 0) and must reach (right_steps, up_steps). Every move is exactly one unit right (R) o...
Coding & Algorithms
2
0
24 people solved
Jul 28, 2026
Easy
Software Engineer LockedDesign Multi-Dimensional Request Rate Limiting
This question evaluates proficiency in designing distributed rate limiting systems, including API and data model design, consistency and scalability t...
System Design
203
0
2464 people solved
May 4, 2026
Hard
Software EngineerDesign a Reliable Job Scheduler
Design a Reliable Job Scheduler Design a service that accepts jobs to run at specified times and dispatches them to workers. The system should continu...
System Design
1
0
35 people solved
Jun 9, 2026
Medium
Software EngineerSenior+Reason About Endianness, Ring Buffers, and Stack Behavior in Firmware
Reason About Endianness, Ring Buffers, and Stack Behavior in Firmware You are reviewing low-level firmware that receives binary records, buffers them ...
Software Engineering Fundamentals
1
0
29 people solved
Jul 7, 2026
Hard
Software EngineerCompute Point-to-Plane Distance and Fit a Robust Plane
Compute Point-to-Plane Distance and Fit a Robust Plane Use NumPy-style vectorized operations to solve both parts of this 3D geometry exercise. Constra...
Statistics & Math
7
0
83 people solved
Jul 7, 2026
Hard
Software EngineerDesign a scalable expense rules engine
Design a Rules Engine for Corporate Credit-Card Expense Review Context We offer a corporate credit card that employees use for business expenses. Mana...
System Design
271
1
2297 people solved
Sep 6, 2025
Medium
Software EngineerSenior+Build a Custom CompletableFuture: Async Primitive and Parallel Array Processing
You are asked to design and implement, from scratch, a simplified asynchronous "future / promise" abstraction in the spirit of Java's CompletableFutur...
Software Engineering Fundamentals
22
0
157 people solved
Jun 29, 2026
Medium
Software EngineerDesign a resilient bootstrap API
Design a Resilient Bootstrap API When a client app loads, it needs to fetch everything required to render the first screen in a single call. That data...
System Design
169
1
2520 people solved
Feb 13, 2026
Medium
Software EngineerSenior+Implement Multi-Player Tic-Tac-Toe
Implement Multi-Player Tic-Tac-Toe Implement a game class for an N by N board and K players. Each player has a distinct one-character printable mark. ...
Coding & Algorithms
4
0
50 people solved
Jul 17, 2026
Medium
Software EngineerSenior+Defend a Schema Decision Through a Real Technical Challenge
Defend a Schema Decision Through a Real Technical Challenge Choose a system you worked on where the data model materially affected correctness, scalab...
Behavioral & Leadership
2
0
28 people solved
Jul 8, 2026
Medium
Software EngineerSenior+Design Extensible Undo and Redo for a Spreadsheet
Design Extensible Undo and Redo for a Spreadsheet A spreadsheet already supports editing one cell and needs undo and redo. Extend the design to row an...
Software Engineering Fundamentals
0
0
9 people solved
Jul 24, 2026
Medium
Software EngineerNew GradAllocate IPO Shares and Split a Weighted Tree
Two Allocation and Tree Problems Implement both independent parts. Part A - IPO Share Allocation Each bid is [user_id, requested_shares, price, timest...
Coding & Algorithms
4
0
58 people solved
Jun 28, 2026
Medium
Software Engineer LockedBehavioral: Proudest Project, Conflict, and Failure
This question evaluates behavioral and leadership competencies through three classic prompts covering personal achievement, interpersonal conflict, an...
Behavioral & Leadership
9
0
94 people solved
Jun 17, 2026
Medium
Software EngineerSenior+ LockedStaff Engineer Hiring-Manager Round: Platform Ownership, AI Adoption, and Cross-Team Influence
This question evaluates a candidate's ability to narrate scope, ownership, and cross-team influence at the senior or staff engineering level, using a ...
Behavioral & Leadership
14
0
124 people solved
Jun 13, 2026
Hard
Software EngineerClarify and Prune an N-ary Tree to a Depth Limit
You are given a rooted N-ary tree and a nonnegative integer k. First compute the tree's maximum depth. Then discuss how to delete a minimum set of nod...
Software Engineering Fundamentals
3
0
34 people solved
Jun 20, 2026
Medium
Software Engineer LockedAnswer Hiring Manager Behavioral Questions
This question assesses a software engineer's behavioral competencies across three dimensions: technical depth, interpersonal conflict resolution, and ...
Behavioral & Leadership
37
0
274 people solved
May 30, 2026
Hard
Machine Learning Engineer LockedDesign an LLM-Based Coding Assistant
This question evaluates a candidate's ability to design an end-to-end machine learning system, covering model architecture, training data pipelines, e...
ML System Design
18
0
141 people solved
Jun 27, 2026
Hard
Software EngineerDesign an SSH-Based Cloud Development Environment
Design an SSH-Based Cloud Development Environment Design a cloud development environment that is accessed by SSH rather than through a browser. Users ...
System Design
3
0
24 people solved
Jun 25, 2026
Medium
Software EngineerDesign Insert/Delete/GetRandom with Weighted Sampling
Design a data structure that supports inserting values, deleting values, and returning a random value. Then extend it so each inserted value has a wei...
Software Engineering Fundamentals
9
0
78 people solved
Jul 2, 2026
Easy
Software EngineerFind the Longest Even-Length Word
Find the Longest Even-Length Word Implement longest_even_word(sentence). Words are separated by one or more spaces. Return the first word among those ...
Coding & Algorithms
0
0
3 people solved
Aug 11, 2026