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."
How do you prioritize and influence?
In a behavioral interview for an AI/ML engineering role, be prepared to answer questions like the following: 1. How do you prioritize multiple project...
Implement common data-structure and JS tasks
You are given several independent coding tasks that appeared across an OA and frontend-focused interviews. Implement each as specified. 1) Time-based ...
How do you handle conflict and ambiguity?
You are asked a series of detailed behavioral questions. Answer each with specific context, actions, and measurable outcomes. Conflict, teamwork, and ...
Implement a versioned hash map with snapshot
VersionedHashMap (time-travel key-value store) Design and implement a data structure VersionedHashMap<K, V> backed by a hash map that supports retriev...
Extend and optimize an existing CLI tool
You are given: - A short requirements doc for a command-line (CLI) tool that performs a set of concrete tasks (subcommands, flags, inputs/outputs). - ...
Design an in-memory TODO list API
Object-Oriented Design: TODO List Design an in-memory TODO list component that supports the following operations: - add(todo) → returns an id - delete...
How do you prioritize and handle failures?
Answer the following behavioral questions with concrete examples from your experience. 1) Prioritization approach - When you have multiple competing t...
Design Multicloud Publishing and API Gateway
You will discuss two system design problems. Problem 1: Design a Database-to-Multicloud Publishing System Design a system that reads records or events...
Solve Matrix Traversal and Pair Sum
You will solve two independent coding problems. Problem 1: Traverse a Matrix in Spiral Order Given an m x n matrix of integers, return all elements in...
Design Siri-vs-GPT query routing
You are a Data Scientist at Apple designing a feature that decides whether a user's natural-language query should be routed to Siri or to a GPT-based ...
How do you interpolate in 3D?
Given two points in 3D space, p0 = (x0, y0, z0) and p1 = (x1, y1, z1), how do you compute a point between them using interpolation? Define the interpo...
Find Maximum Island Perimeter
You are given an m x n binary grid where 1 represents land and 0 represents water. An island is a group of land cells connected vertically or horizont...
Explain project decisions and trade-offs
Pick one project you worked on and walk through the key technical decisions behind it. Why did you choose that architecture, design, or technology sta...
Design fast search for AV raw logs
Autonomous vehicles collect large volumes of raw logs (e.g., sensor streams, perception outputs, planning/debug signals). In these logs, there may be ...
Compute total active time per Twitter Space
You are given an event log of user activity in Twitter Spaces. Each record has: - operation: one of create, join, leave - space_id: identifier of the ...
Describe a challenging project
Behavioral Question Describe one project you worked on that was particularly challenging. Please cover: - Context: What was the goal and your role/own...
Design a job scheduler with SLA and logs
Scenario Design a distributed job scheduler that runs scheduled (time-based) jobs only (e.g., cron/interval). Each job execution has an SLA: if the ru...
Implement a rate limiter and a pub/sub API
You have two coding/design (low-level design) tasks. 1) Rate limiter Design and implement a rate limiter with an API like: - boolean allow(String clie...
Answer conflict, failure, and proud project questions
Behavioral questions Answer the following behavioral prompts using real examples from your experience: 1. Conflict: Tell me about a time you had a con...
Design a constrained cache and secure string validator
Part A — Constrained cache (LRU-like) Design an in-memory cache that supports the following operations: - get(key) -> value | null - put(key, value) -...