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."
Navigate a Maze Through a Next-Step API
You are given an API that returns the next location you should visit in a maze. Starting from an initial location, repeatedly call the API until you r...
Design 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...
Behavioral Round: Judgment, Prioritization, and Influence
Behavioral Round: Judgment, Prioritization, and Influence This was the behavioral interview. You will be asked three questions about judgment, reprior...
Determine Whether One Point Can Reach Another
Determine Whether One Point Can Reach Another You start at a point (sx, sy) with positive integer coordinates. From (x, y), one move may transform the...
Model and Solve a Rectangular Jigsaw Puzzle
Model and Solve a Rectangular Jigsaw Puzzle Design an object-oriented model for a rectangular jigsaw puzzle and outline an algorithm to solve it. Use ...
Design a Memo Q&A Agent for a Large Law Firm
This question evaluates ML system design skills, specifically retrieval-augmented generation (RAG) and LLM-grounded document retrieval at production s...
Represent and Evaluate Boolean Predicate Expressions
Design a data structure to represent and evaluate predicates such as abc > 5 and (test < 8 or team > 9). Support comparisons, and, or, parentheses, an...
Architect an AI Chatbot for Enterprise Users
Architect an AI chatbot for enterprise users over internal knowledge and tools. <details> <summary>Hint 1</summary> Start by stating assumptions, then...
Design a Food Rating System
This question evaluates skills in system design, data modeling, consistency and transactional guarantees, idempotency, scaling, and designing read-hea...
Design Extensible Interview Coding Systems
Review a broad software engineering interview loop covering object-oriented delivery APIs, rule engines, article voting systems, and a news aggregator...
Design A ChatGPT-Style Assistant Product
Design a ChatGPT-style assistant product. Cover the user experience, conversation state, message streaming, model invocation, safety and error handlin...
Implement Spreadsheet Cells with Dependencies
Design spreadsheet-like get and set operations for cells where formulas can depend on other cells. When a cell changes, dependent cells should reflect...
Walk Through an Experiment From Design to Decision
Describe an experiment you designed or analyzed. Explain the decision it was meant to inform, how you chose the experimental unit and metrics, what th...
Design a Food-Delivery Backend (Uber Eats-style)
Design the backend for a food-delivery platform like Uber Eats. A customer opens the app, browses nearby restaurants, places an order from a menu, pay...
Design an Online Chess Service from Launch to Scale
Design an Online Chess Service from Launch to Scale Design an online chess service. Players enter matchmaking, are paired into games, exchange legal m...
Design a RAG Q&A Agent over Law Firm Legal Memos
This question evaluates a candidate's ability to design a retrieval-augmented generation system, covering ingestion, chunking, indexing, retrieval, an...
Implement A Contiguous Memory Allocator With Free-Block Coalescing
Review a contiguous memory allocator coding prompt with malloc, free, first-fit allocation, block coalescing, and a best-fit follow-up. The interview ...
Choose Mean or Median for Trading Profit Metrics
A trading firm observes daily profit values X_1 through X_n and wants a metric for average performance. In an interview, you must choose between mean ...
Implement a Single-Screen Tic-Tac-Toe Game with State Management
Implement a single-screen Tic-Tac-Toe game. Maintain game state, support player moves, detect wins and draws, prevent invalid moves, and keep the impl...
LLM Foundations: Architecture, Adaptation, and Steering
LLM Foundations: Architecture, Adaptation, and Steering You are a software engineer interviewing for a team that is integrating a large language model...