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
Hard
Machine Learning EngineerFind Maximum Path Sum in N-ary Tree
You are given the root of an N-ary tree. Each node contains an integer value and a list of zero or more children. A path is a sequence of nodes where ...
Coding & Algorithms
2
0
34 people solved
Jan 30, 2026
Medium
Software Engineer LockedDesign a Recoverable Iterator
This question evaluates data-structure and state-management skills, focusing on iterator semantics, snapshotting/restore mechanics, and efficient time...
Coding & Algorithms
3
0
36 people solved
Jan 30, 2026
Easy
Software EngineerImplement three whiteboard coding tasks
The interview report described several coding questions in the same category: 1. Binary search: Given a sorted array of integers and a target value, r...
Coding & Algorithms
2
0
29 people solved
Jan 30, 2026
Medium
Data Scientist LockedHow should Uber evaluate lower ETA?
This question evaluates competency in metrics design, causal inference, and experiment strategy for two-sided marketplaces, including detecting and ad...
Analytics & Experimentation
7
0
48 people solved
Jan 30, 2026
Hard
Machine Learning EngineerImplement calculator and graph connectivity
Answer the following coding problems: 1. Implement an arithmetic expression evaluator. Given a string containing non-negative integers, spaces, +, -, ...
Coding & Algorithms
6
0
54 people solved
Jan 30, 2026
Medium
Software EngineerReturn valid task order from prerequisites
You are given N tasks labeled 0..N-1 and a list of directed dependency pairs [(a,b), ...] meaning task a must be done before task b. 1) Return one val...
Coding & Algorithms
9
0
130 people solved
Jan 30, 2026
Medium
Product ManagerHow do you make data-driven decisions?
How do you make data-driven product decisions? Describe your approach to using data, customer insight, experiments, and judgment to choose a product d...
Product / Decision Making
11
0
78 people solved
Feb 28, 2025
Medium
Software Engineer LockedDesign a URL shortener
This question evaluates a candidate's ability to design scalable web services and systems architecture, covering data modeling, routing, and high-read...
System Design
3
0
36 people solved
Jan 29, 2026
Medium
Software Engineer LockedSolve scheduling and collision problems
This question evaluates a candidate's understanding of algorithm design and data structures for resource allocation and dynamic interaction problems, ...
Coding & Algorithms
6
0
48 people solved
Jan 29, 2026
Hard
Software EngineerSenior+ LockedImplement store, evaluator, and parser
This question evaluates implementation skills in data structures and algorithms, covering time-based versioning and TTL in an in-memory key-value stor...
Coding & Algorithms
11
0
99 people solved
Jan 29, 2026
Medium
Software EngineerDiscuss AI Safety and Ethics
In an initial recruiter screen for an AI-focused company, you are asked to briefly introduce your background, explain whether you reviewed the company...
Behavioral & Leadership
3
0
26 people solved
Jan 29, 2026
Easy
Software Engineer LockedCompute Sliding Window Averages
This question evaluates proficiency in array manipulation, sliding-window techniques, and algorithmic efficiency including time and space complexity. ...
Coding & Algorithms
1
0
21 people solved
Jan 29, 2026
Medium
Product ManagerDescribe a 0-to-1 project you led
Tell me about a product or growth initiative that you personally led from 0 to 1. Explain the customer problem, why the opportunity mattered, how you ...
Behavioral & Leadership
10
0
112 people solved
Feb 24, 2025
Medium
Software EngineerDesign an LLM Log Parsing Workflow
Design a production workflow that uses an LLM, optionally combined with deterministic parsers, to convert heterogeneous raw log messages into structur...
ML System Design
2
0
18 people solved
Jan 28, 2026
Medium
Software EngineerReturn a Package Build Order
You are given an API: `python get_dependencies(package) -> list[str] ` It returns the direct dependencies of a given package. If package A depends on ...
Coding & Algorithms
4
0
59 people solved
Jan 28, 2026
Medium
Software Engineer LockedImplement File Tail and Sensor Health
This question evaluates skills in large-file streaming and buffer/pointer manipulation for tailing files, along with data-structure and time-window re...
Coding & Algorithms
9
0
80 people solved
Jan 28, 2026
Hard
Machine Learning Engineer LockedImplement Distributed Matrix Multiplication
This question evaluates distributed systems and parallel algorithm skills, specifically distributed matrix multiplication, data partitioning (row- and...
Coding & Algorithms
5
0
51 people solved
Jan 28, 2026
Medium
Software Engineer LockedSolve Two Grid Search Problems
This question evaluates proficiency in graph traversal on grids, specifically competencies in identifying connected components and modeling propagatio...
Coding & Algorithms
11
0
77 people solved
Jan 28, 2026
Medium
Product Analyst LockedWrite Call Analytics SQL Queries
This question evaluates SQL data manipulation and analytical competencies, including aggregation, joins between user and event tables, time-window fil...
Data Manipulation (SQL/Python)
3
0
26 people solved
Jan 28, 2026
Easy
Software EngineerImplement a consistent hashing ring
Implement a class ConsistentHashRing that distributes keys across servers using a hash ring with virtual nodes. Required API: - ConsistentHashRing(rep...
Coding & Algorithms
17
0
172 people solved
Jan 28, 2026