Interview Questions
Practice the exact questions companies are asking right now.
Questions
9.8k
Companies
511
Updated
08.16.2026
9.8k Questions 511 Companies08.16.2026
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
Software EngineerDesign an e-commerce price tracking service
Design a backend system for an e-commerce price-tracking service. Users can track products from a large online retailer, view historical prices, and r...
System Design
1
0
29 people solved
Mar 23, 2025
Medium
Product ManagerImprove hotel check-in and check-out
You are interviewing for a Product Manager product case. Work through this prompt in a structured way: Imagine you are the Product Manager for a hotel...
Product Design & Strategy
3
0
39 people solved
Aug 14, 2023
Medium
Product ManagerHow do you validate the problem and define V1?
How do you determine whether your team is solving the right customer problem, and how do you decide what should be included in V1 or MVP versus a late...
Product Design & Strategy
8
0
63 people solved
Feb 24, 2025
Medium
Product ManagerInternDesign a product for meaningful connections
You are interviewing for a Product Manager product case. Work through this prompt in a structured way: Design a product that helps users connect with ...
Product Design & Strategy
8
0
54 people solved
Jul 1, 2023
Medium
Machine Learning EngineerDetermine Reachability in Train Schedule
You are given a train schedule represented as a list of train routes. Each route is a list of station names, where the element at index t is the stati...
Coding & Algorithms
17
0
134 people solved
Feb 7, 2025
Easy
Data ScientistSenior+ LockedDesign experiment and analyze volume drop scenario
Design an activation experiment for first-trade rate and investigate a retail trading volume drop despite higher BTC volatility. The solution covers A...
Analytics & Experimentation
2
0
26 people solved
Feb 6, 2025
Medium
Software EngineerMaximum Currency Conversion Rate
Maximum Currency Conversion Rate You are given N currency exchange rate pairs. Each pair is a triple (from_currency, to_currency, rate), meaning that ...
Coding & Algorithms
0
0
9 people solved
Jan 31, 2025
Hard
Product ManagerDefine Meta Pay Success
Meta Pay is a payments product used across Meta's ecosystem. Define how you would determine whether Meta Pay is successful, then make a product priori...
Product / Decision Making
3
0
31 people solved
Feb 22, 2024
Easy
Data ScientistCount super-streak segments in an event stream
You are given a time-ordered sequence of events. Each event has: - type, a string or integer event type. - ts, an integer timestamp in milliseconds or...
Coding & Algorithms
12
0
92 people solved
Jan 2, 2025
Medium
Product ManagerHow to answer HireVue behavioral prompts
You are preparing for a Product Manager behavioral interview. Build structured, interview-ready answers for this prompt cluster from the original inte...
Behavioral & Leadership
5
0
57 people solved
Dec 15, 2023
Hard
Software EngineerSnake Game: Minimum Moves to Reach the Apple
Snake Game: Minimum Moves to Reach the Apple You are simulating the classic Snake game on a grid with R rows and C columns. Cells are identified as (r...
Coding & Algorithms
2
0
16 people solved
Sep 14, 2022
Medium
Product ManagerInternHandle negative comments on marketplace
You are the Product Manager for an e-commerce marketplace. You notice a rise in negative comments and reviews from users. How would you investigate th...
Product / Decision Making
7
0
50 people solved
Jul 10, 2024
Medium
Data AnalystWrite SQL for content view metrics by device
Write SQL for content view metrics by device You are a reporting analyst for a news subscription product. You have a fact table of page/content view e...
Data Manipulation (SQL/Python)
5
0
72 people solved
Mar 1, 2022
Easy
Software EngineerStack Machine Interpreter with Typed Int and String Values
You are building an interpreter for a simple stack machine. The machine has a single stack, and every value on the stack is one of exactly two primiti...
Coding & Algorithms
1
0
12 people solved
Apr 28, 2022
Medium
Data ScientistInternStreaming Equivalence of Two Trade Feeds with Per-Company Ordering
A market-data system receives trade events from two independent feeds. Each event is a pair (company, trade_id) identifying one trade for one company....
Coding & Algorithms
0
0
7 people solved
Oct 12, 2022
Hard
Software EngineerDecode an Encrypted Paragraph Tree
Decode an Encrypted Paragraph Tree A document is stored as a tree of paragraphs. Each node holds a paragraph text — a string of lowercase English lett...
Coding & Algorithms
0
0
19 people solved
Sep 14, 2022
Hard
Software EngineerReach a Target Using Each Number At Most Once
Reach a Target Using Each Number At Most Once You are given an array of integers nums and an integer target. Decide whether you can build an arithmeti...
Coding & Algorithms
1
0
12 people solved
Sep 14, 2022
Hard
Software EngineerEvaluate a Tokenized Arithmetic Expression
Evaluate a Tokenized Arithmetic Expression You are given an arithmetic expression that has already been tokenized for you — you do not need to write a...
Coding & Algorithms
2
0
19 people solved
Sep 14, 2022
Hard
Software EngineerSenior+Determine Whether One Point Can Reach Another
Determine Whether One Point Can Reach Another You start at a point (sx, sy) with positive integer coordinates. From (x, y), one move may transform the...
Coding & Algorithms
1
0
21 people solved
Jul 16, 2026
Hard
Software EngineerSenior+Count Substrings with No Repeated Characters
Count Substrings with No Repeated Characters Given a lowercase English string s, return the number of nonempty contiguous substrings whose characters ...
Coding & Algorithms
1
0
22 people solved
Jul 16, 2026