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 EngineerSolve two algorithm problems from a menu
Choose two problems from an algorithms menu (arrays, strings, hash maps, graphs). For each: 1) state clarifying assumptions, 2) implement a correct so...
Coding & Algorithms
13
0
131 people solved
Jul 26, 2025
Medium
Software EngineerInternImplement Cache and Key-Value Store
The interview report mentions coding tasks similar to the following: 1. Bounded cache Implement a cache with a fixed capacity. Support: - get(ke...
Coding & Algorithms
2
1
50 people solved
Oct 5, 2025
Medium
Machine Learning EngineerImplement a Web Crawler with BFS and DFS
Implement a simple web crawler in Python. You are given: - A starting URL. - A function get_links(url) -> list[str] that returns all outgoing links fr...
Coding & Algorithms
1
1
19 people solved
Dec 24, 2025
Medium
Data ScientistExplain key ML/stats concepts
Explain key ML/stats concepts You are taking an ML/Stats screening with conceptual multiple-choice questions. Answer the following: 1. CNN vs. RNN ...
Machine Learning
3
0
56 people solved
Jul 25, 2025
Medium
Machine Learning EngineerSenior+Describe a Machine Learning Project
In a Lead Machine Learning Engineer interview, present one machine learning project that you led or substantially owned. In 2-4 minutes, cover: - A 20...
Behavioral & Leadership
4
0
32 people solved
Mar 29, 2026
Easy
Data ScientistInternHandle multicollinearity in feature selection
You are building an interpretable predictive model for an insurance company, such as a linear or logistic regression model for claim risk. Several inp...
Machine Learning
4
0
57 people solved
Mar 29, 2026
Medium
Software Engineer LockedDesign personalized news aggregation service
The question evaluates the ability to design a large-scale personalized content delivery system, testing competencies in distributed systems architect...
System Design
8
0
76 people solved
Oct 4, 2025
Easy
Data Scientist LockedCompute diff-in-diff and pretrend flag
This question evaluates understanding of difference-in-differences estimation, simple pretrend detection, and related data-processing competencies for...
Analytics & Experimentation
6
0
51 people solved
Oct 3, 2025
Medium
Software Engineer LockedDesign an Accurate Click Aggregator
This question evaluates a candidate's ability to design reliable, high-throughput event processing and analytics systems, emphasizing data modeling, i...
System Design
9
0
79 people solved
Dec 22, 2025
Medium
Software EngineerCompute interval mode, BST range sum, exclusive time
You are given several independent coding tasks. A) Most frequent integer covered by intervals You are given an integer range [-M, M] and a list of inc...
Coding & Algorithms
3
0
41 people solved
Oct 2, 2025
Medium
Software EngineerSenior+ LockedDesign an ad frequency capping system
This question evaluates a candidate's ability to design scalable, low-latency distributed systems that enforce ad frequency caps across users, devices...
System Design
13
0
215 people solved
Sep 30, 2025
Medium
Data EngineerHiring Manager Behavioral Round: Project Impact, Influence, Communication, and Setbacks
Hiring Manager Behavioral Round: Project Impact, Influence, Communication, and Setbacks This is a hiring-manager video round centered on your project ...
Behavioral & Leadership
1
0
22 people solved
Mar 27, 2026
Medium
Machine Learning Engineer LockedApproach an ambiguous business problem
This question evaluates a candidate's ability to handle ambiguity in ML system design by assessing skills in stakeholder communication, problem scopin...
ML System Design
3
0
41 people solved
Dec 20, 2025
Medium
Machine Learning Engineer LockedExplain modern modeling and alignment methods
This question evaluates mastery of modern model architectures and alignment techniques—covering attention optimizations like FlashAttention, parameter...
Machine Learning
4
0
35 people solved
Dec 20, 2025
Hard
Software EngineerSenior+Answer cross-team delivery and values questions
You are in a behavioral/values interview. Prepare structured answers (use STAR or similar) for prompts like: 1) Cross-team delivery issue - Describe a...
Behavioral & Leadership
12
0
170 people solved
Dec 20, 2025
Hard
Software EngineerSenior+Design a fast host listing metrics page
Design the backend for a host (landlord) listings page. User flow: - Host opens a page showing many of their listings. - Host selects a date range. - ...
System Design
39
0
494 people solved
Dec 20, 2025
Medium
Software EngineerHow to handle huge inputs?
In a coding interview, after solving an in-memory algorithmic problem, the interviewer asks: "What would you do if the input were extremely large?" Gi...
Software Engineering Fundamentals
5
0
52 people solved
May 13, 2025
Medium
Machine Learning EngineerExplain 3D geometry data
Explain 3D geometry data 3D Geometry Data: Representations, Preprocessing, Modeling, and Serving Prompt You are working with 3D geometry data in ML pi...
Machine Learning
11
0
78 people solved
Jul 17, 2025
Medium
Software EngineerImplement Wordle-style word guessing solver
Implement Wordle-style word guessing solver Implement a program to solve a Wordle-style word guessing game. The game has a hidden target word of fixed...
Coding & Algorithms
19
0
270 people solved
Jul 17, 2025
Medium
Data ScientistCompute expected counters after color elimination
Compute expected counters after color elimination Problem You have a bag with 30 counters: 10 red, 10 yellow, and 10 blue. You draw counters uniformly...
Statistics & Math
4
0
73 people solved
Jul 17, 2025