Interview Questions
Practice the exact questions companies are asking right now.
Questions
10.0k
Companies
520
Updated
08.21.2026
10.0k Questions 520 Companies08.21.2026
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 EngineerProcess document edit events
Implement a line-based document editor. You are given: - an initial document represented as an array of strings, where each string is one line - a lis...
Coding & Algorithms
3
0
60 people solved
Dec 15, 2025
Medium
Machine Learning EngineerImplement SGD for linear regression and derive gradients
Prompt You are given a dataset of \(n\) 1D samples \(\{(x_i, y_i)\}_{i=1}^n\), where \(x_i\) and \(y_i\) are real numbers. We want to fit a linear mod...
Machine Learning
10
0
107 people solved
Dec 15, 2025
Easy
Software EngineerDesign a Netflix-like video platform
Scenario Design a Netflix-like platform that supports: - Search for videos (by title, tags, people, etc.) - Stream videos to web/mobile/TV clients - U...
System Design
9
0
144 people solved
Dec 15, 2025
Medium
Software EngineerCompute shortest delivery route with dangerous stops
Delivery Route Planning With Dangerous Stops You are given delivery stops (nodes) and a set of routes. Each route is a list of stops, and you can trav...
Coding & Algorithms
15
0
154 people solved
Dec 15, 2025
Medium
Software EngineerCompute party hours per town and city gaps
You are given (1) a region table describing a hierarchy of locations and (2) a list of party attendance time intervals (all timestamps occur within a ...
Coding & Algorithms
39
1
275 people solved
Dec 15, 2025
Medium
Machine Learning Engineer LockedDesign comment ranking for a news feed
This question evaluates a candidate's ability to design an ML-powered comment-ranking system, testing competencies in personalization, engagement and ...
ML System Design
6
0
101 people solved
Dec 15, 2025
Medium
Machine Learning EngineerImplement K-means and solve interval/frequency tasks
Task 1 — Describe/implement K-means clustering Given: - A data matrix X with shape (n_samples, d). - An integer k (number of clusters). Explain (or wr...
Coding & Algorithms
7
0
67 people solved
Dec 15, 2025
Medium
Machine Learning EngineerAnswer leadership questions on tradeoffs and collaboration
Behavioral / Leadership Questions Answer using specific examples from your experience. 1. Project deep dive: Walk through a recent project end-to-end ...
Behavioral & Leadership
18
0
127 people solved
Dec 15, 2025
Medium
Software Engineer LockedDesign a Netflix-like video streaming service
This question evaluates competency in designing large-scale streaming platforms, focusing on distributed systems, content storage and encoding pipelin...
System Design
4
0
51 people solved
Dec 15, 2025
Medium
Software EngineerToken Bucket Rate Limiter with Lazy Refill Backed by a Cache
Token Bucket Rate Limiter with Lazy Refill Backed by a Cache You are building the enforcement layer of a rate limiter. Every user has a token bucket s...
Coding & Algorithms
1
1
16 people solved
Sep 23, 2025
Easy
Machine Learning Engineer LockedSolve two linked list/array tasks
This two-part question evaluates proficiency with fundamental data structures and algorithmic problem-solving—specifically linked list manipulation an...
Coding & Algorithms
3
0
64 people solved
Dec 14, 2025
Hard
Frontend Engineer LockedBuild a Stateful Calculator
This question evaluates a candidate's ability to model and manage UI state, handle event-driven input, and implement correct operator chaining in a ca...
Software Engineering Fundamentals
16
0
113 people solved
Dec 13, 2025
Medium
Data ScientistHandle imbalance, sampling, and overfitting
Machine Learning Fundamentals: Imbalance, Sampling, Overfitting, and Regularization You are asked several machine learning fundamentals questions in a...
Machine Learning
7
0
59 people solved
Jul 8, 2025
Medium
Product ManagerInternExplain your PM transition and growth
You are interviewing for a Product Manager internship. Prepare a coherent behavioral narrative that can answer this cluster of prompts: - Introduce yo...
Behavioral & Leadership
7
0
87 people solved
Jul 1, 2023
Easy
Data ScientistEvaluate campaign success and decide new trading pair
Context You are a Data Scientist at a crypto exchange. You work with Growth Marketing and Product to evaluate marketing spend and to make listing/laun...
Analytics & Experimentation
7
0
49 people solved
Sep 20, 2025
Easy
Data ScientistSenior+Measure feature impact with switchback, PSM, and CACE
You work at a ridesharing company and want to measure the impact of a new membership feature on rides-per-user (RPU). Across the parts below you will ...
Analytics & Experimentation
45
0
303 people solved
Dec 11, 2025
Easy
Data ScientistIntern LockedRelate coefficients under linear feature transformation
This question evaluates understanding of linear regression parameter relationships under linear feature transformations, model equivalence and identif...
Statistics & Math
7
0
65 people solved
Dec 11, 2025
Easy
Data ScientistInternFind top-5 most similar rows across datasets
You can solve this in SQL or Python. You are given two datasets with the same feature columns: Tables target_rows (rows you want to match) - target_id...
Data Manipulation (SQL/Python)
2
0
25 people solved
Dec 11, 2025
Medium
Product ManagerFavorite Product Deep Dive & UX Focus
Favorite Product Deep Dive and UX Improvement Case You will be assessed on product sense, UX judgment, and metrics thinking. Answer in three parts: a ...
Product / Decision Making
9
0
54 people solved
Jul 4, 2025
Medium
Product ManagerLeadership, Entrepreneurship & Cross-Functional Collaboration
Behavioral PM Onsite: Leadership, Entrepreneurship, and Cross-Functional Collaboration You are interviewing for a Product Manager role in a consumer t...
Behavioral & Leadership
17
0
94 people solved
Jul 4, 2025