Interview Questions
Practice the exact questions companies are asking right now.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Design an in-memory order matching engine
You are asked to design an in-memory order book / order matching system for a single electronic trading venue. The implementation language is C++, and...
Solve these algorithmic problems
You are given the following independent coding tasks. For each task, design an algorithm and implement a function that returns the requested output. -...
Design an A/B Testing Platform
Design an internal A/B testing platform for a large consumer product. The platform should let product managers and engineers create experiments, defin...
Design a CI/CD system with stuck-job handling
Scenario Design a CI/CD platform similar to GitHub Actions/Jenkins that: - Triggers pipelines on events (e.g., push/PR/merge). - Runs pipelines as a D...
Design poker-like hand comparison with custom ranking
Problem Design an object-oriented solution to compare two players' hands in a card game similar to poker. You are given two hands (each a fixed number...
Find LCA With Parent Pointers
Given two nodes in a rooted tree, find their lowest common ancestor. Each node has a pointer to its parent. You are not given the root of the tree. De...
Implement timestamped task management system APIs
You are implementing an in-memory Task Management System. All API methods are called with a timestamp representing the logical time when the operation...
Implement a simplified memcached server
Implement a simplified in-memory key-value store that speaks a small text protocol inspired by memcached. The server stores keys and raw byte values i...
Hierarchical Access Control for an Advertising Platform
Design an access-control system for an advertising platform. Advertisers are organized into a hierarchy of groups. A group may contain other groups (s...
Design a URL Shortener
Design a URL-shortening service similar to TinyURL. The service should accept a long URL and return a short code, and later redirect requests for that...
Design an Extensible Simulation Engine
Design and implement an object-oriented simulation framework for a two-player, turn-based game similar to tic-tac-toe. The system should initialize ga...
Implement a Time-Aware Task Manager
Design and implement an in-memory task management component. Each task belongs to one user. A task has a unique task ID, arbitrary task content, a cre...
Design a resilient dasher payment system
Question Design an end-to-end payment system for DoorDash delivery drivers (Dashers) that computes payouts from order/delivery lifecycle events. The e...
Design CI/CD for AI Services
Design a CI/CD platform for a large AI product organization. The platform must support backend services, model-serving APIs, data and feature pipeline...
Improve concurrency beyond a single lock
You are given a simple multi-threaded component that protects all shared state with a single mutual-exclusion lock (mutex). Scenario A service has man...
Present a Project and Reflect
Prepare a short presentation about a project you worked on closely. Your answer should cover: - the problem statement and why it mattered - the contex...
Solve meeting scheduling and robot cleaning tasks
You are given two independent coding problems. --- Problem 1: Prioritized Meeting Scheduling You are asked to schedule meetings in a single meeting ro...
Meta PM Interview Questions
Product and Decision-Making Onsite Case Prompt Set You are a Product Manager candidate preparing for a mixed onsite loop covering strategy, data, desi...
Design Testing Without A/B Experiments
Suppose a product team wants to evaluate a new feature that is intended to improve user engagement and long-term retention, but a clean randomized A/B...
Define Ultra success metrics and detect suspicious transactions
You work on a fintech product with these existing tables (UTC timestamps). You may only use these tables/columns; if a metric cannot be measured direc...