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."
Describe common RTL lint warnings and errors
You are writing RTL (e.g., Verilog/SystemVerilog) and run a lint tool on your code. The tool reports items such as: - "Treat as black box" - Combinati...
Design paint editor with undo/redo
Implement a simplified Paint editor that supports drawing on a 2D canvas and reverting changes using undo and redo operations. Canvas You are given a ...
Share different perspective from leadership feedback
Describe a time when you received feedback from a manager or senior leader that gave you a different perspective on a situation or project. Explain: -...
Design a team chat system
Design a team chat system similar to Slack. The system should support: - One-to-one direct messages - One-to-many or group conversations (channels or ...
Design employee and company classes with tests
Object-Oriented Design + Unit Testing: Employee & Company You are implementing a small in-memory model for a company and its employees. This is a deli...
Walk through a data pipeline project
Describe a data pipeline project you built or owned end-to-end. In your answer, cover: - The business problem and downstream consumers (dashboards, mo...
Implement Depth-First Search Traversal
Given a graph represented as an adjacency list and a starting node, write a depth-first search function that returns the nodes visited in DFS order. Y...
Store a hierarchy and return all children
Design a service to store a hierarchical tree of nodes and expose APIs. Requirements: - Persist a hierarchy (a forest with multiple roots is acceptabl...
Answer trader-style behavioral and motivation questions
You are interviewing for a trading/quant role. Prepare strong answers to the following behavioral prompts: - Why this firm? Why this role/team? - What...
Explain and compute option delta
In options trading, what is an option’s delta? 1) Give the definition of delta and explain its intuition/sign for calls vs puts. 2) Under the Black–Sc...
Describe project impact and critical feedback
Prepare for two behavioral prompts commonly asked in a software engineering onsite interview: 1. Describe a project you are proud of Explain the bu...
Design an image crawler for unlimited URLs
Design a service that crawls images starting from a set of root URLs. Requirements: - Input: one or more root URLs. - Crawl pages, discover links, and...
Implement solutions to several coding tasks
You are given several independent coding interview tasks. Solve each with the required time/space complexity. Problem 1: Find the minimum in a rotated...
Find all cells reachable by downhill flow
Problem You are given an m x n grid heights, where heights[r][c] is the elevation of cell (r, c). A drop of water is placed at a starting cell start =...
Find kth smallest in sorted 2D matrix
You are given an n x m matrix of integers where each row and each column is sorted in non-decreasing order. You are also given an integer k such that ...
Compute Remaining GPUs With Switching Limits
Suppose you manage n GPU clusters with fixed daily capacities capacity[i]. Each day starts fresh with the full capacity, because all GPUs are returned...
Build a model to predict wine quality
Modeling task: Predict wine quality from a CSV You are given a clean CSV dataset about red wine. The target (dependent) variable is: - quality (intege...
How to answer frontend video-screen behavioral prompts
You are in a ~15-minute asynchronous AI video screen for a Frontend Engineer role. You will record short responses that will be reviewed by the hiring...
Generate All Valid Combinations of Balanced Parentheses
Generate All Valid Combinations of Balanced Parentheses Given an integer n representing the number of pairs of parentheses, generate all distinct stri...
Compute minimum sample size for A/B test
You are implementing a function to compute the minimum total sample size for an A/B test. You are given: - observed: a 1D array of historical/baseline...