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
Medium
Data Scientist LockedAnalyze Document Collaboration CSVs
Analyze Document Collaboration CSVs evaluates SQL or pandas logic, joins, grouping, window functions, null handling, edge cases, and validation in a r...
Data Manipulation (SQL/Python)
8
0
67 people solved
Jul 1, 2025
Medium
Machine Learning EngineerFind Shortest Clear Grid Path
Given an n x n binary grid, where 0 means open and 1 means blocked, return the length of the shortest clear path from the top-left cell to the bottom-...
Coding & Algorithms
3
0
34 people solved
Jun 28, 2025
Medium
Data ScientistTiktok DS Interview Questions
Scenario: You are provided with two tables: minute_streamed and minute_viewed. The minute_streamed table records each minute of streaming activity, wh...
Data Manipulation (SQL/Python)
11
1
83 people solved
Jun 26, 2025
Medium
Data ScientistInvestigating Correlation Between Ad Visits and Reports
Scenario You are on the analytics team at a large social media platform. A positive correlation has been observed between the number of page visits to...
Analytics & Experimentation
6
0
62 people solved
Jun 22, 2025
Medium
Software EngineerFind the Slowest Function from Profiler Events
You are given a time-ordered profiler event log for a single-threaded program. Each event is one of: - START functionName timestamp: execution enters ...
Coding & Algorithms
1
0
14 people solved
Jun 17, 2025
Easy
Software EngineerIn-Memory Key-Value Database with Nested Transactions
In-Memory Key-Value Database with Nested Transactions Implement an in-memory key-value database that processes a sequence of commands and supports nes...
Coding & Algorithms
1
0
8 people solved
Jun 7, 2025
Hard
Machine Learning EngineerConstant-Time Insert, Remove, and Uniform Random Sampling
A data-sampling service maintains a dynamically changing pool of integer example IDs. Examples are continuously added and retired, and the service mus...
Coding & Algorithms
0
0
4 people solved
May 30, 2025
Hard
Machine Learning EngineerGreedy Longest-Match Tokenizer for an LLM Data Pipeline
You are building a text pre-processing step for a large-language-model training pipeline. Before raw text can be fed into the model, it must be split ...
Coding & Algorithms
0
0
3 people solved
May 30, 2025
Hard
Software EngineerCompute tree right view and target-sum subarrays
You are given two separate programming tasks. --- Task 1: Right-side view of a binary tree You are given the root of a binary tree. Imagine standing o...
Coding & Algorithms
3
0
28 people solved
Mar 23, 2025
Medium
Data ScientistMake Two Apple Piles Equal With Doubling Moves
You have two piles of apples: the first pile contains a apples and the second pile contains b apples. In one move you choose one pile to be the receiv...
Coding & Algorithms
0
0
6 people solved
Mar 21, 2025
Medium
Software EngineerInternFind Most Frequent Values
Given an integer array nums and an integer k, return the k distinct values that occur most frequently in nums. The result may be returned in any order...
Coding & Algorithms
1
0
14 people solved
Mar 18, 2025
Easy
Data ScientistSenior+Write SQL for 30-day activity and D7 retention
You are given two tables. Table: trades - user_id (BIGINT) - trade_time (TIMESTAMP) — timestamp of the trade - volume (NUMERIC) - asset (TEXT) Table: ...
Data Manipulation (SQL/Python)
7
0
50 people solved
Feb 6, 2025
Hard
Backend EngineerImplement BFS and a Job Scheduler
The interview report described two coding questions: grid reveal with BFS and a concurrent periodic job scheduler. Constraints & Assumptions - For the...
Coding & Algorithms
8
0
82 people solved
Feb 4, 2025
Easy
Product ManagerWalk Through Your Background and Motivation
For a Nexon Product Manager interview, prepare answers to common background and motivation questions. You may be asked to walk through your background...
Behavioral & Leadership
4
0
52 people solved
Jan 27, 2025
Medium
Data EngineerInternCount Special Index Pairs
Given an integer array nums of length n, count the number of index pairs (i, j) such that: - 0 <= i < j < n - nums[i] * nums[j] is even - j - i is odd...
Coding & Algorithms
2
0
39 people solved
Jan 26, 2025
Medium
Product ManagerBalance monetization with user experience
How would you balance monetization in TikTok's recommendation feed with user experience so the company can grow revenue without hurting retention, tru...
Product / Decision Making
2
0
29 people solved
Jan 26, 2025
Medium
Data ScientistEvaluate Guangzhou performance with limited data
You have built an autonomous-driving evaluation system using a large amount of labeled data from Beijing. The company now wants to operate in Guangzho...
Machine Learning
5
0
44 people solved
Jan 23, 2025
Medium
Product ManagerHandle Partner Pushback
In a game Product Manager interview, how would you handle pushback from cross-functional partners such as game designers, engineers, analytics, publis...
Behavioral & Leadership
3
0
39 people solved
Jan 5, 2025
Medium
Data ScientistDesign Ride-Quality Metrics and Diagnose Ratios
You are interviewing for an autonomous-driving metrics team. The team wants to measure rider experience for completed rides using trip-level data such...
Analytics & Experimentation
3
0
64 people solved
Jan 4, 2025
Medium
Data ScientistSenior+How would you measure causal impact?
Answer the following two analytics interview prompts. Constraints & Assumptions - For causal impact, separate prediction from causal identification. -...
Analytics & Experimentation
3
0
59 people solved
Dec 11, 2024