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 EngineerDesign an In-Memory Database
Implement a simple in-memory database with a flexible, schema-less record model. Requirements: - Each record is a mapping from column_name to value. -...
Coding & Algorithms
1
0
28 people solved
Apr 6, 2026
Medium
Software EngineerProcess Mutable Matrix Sum Queries
You are given a 2D integer matrix and a list of queries. There are two query types: - set r c v: update the value at row r and column c to v - get r1 ...
Coding & Algorithms
2
0
28 people solved
Apr 6, 2026
Medium
Site Reliability Engineer LockedImplement a Streaming VMStat Alert
This question evaluates streaming data processing skills, sliding-window counting algorithms, and efficient online state management for metric monitor...
Coding & Algorithms
5
0
74 people solved
Apr 6, 2026
Medium
Software EngineerSolve three algorithm tasks
Solve the following algorithm tasks and explain your approach, time complexity, and space complexity for each: 1) Fully justify text: Given an array o...
Coding & Algorithms
3
0
55 people solved
Aug 13, 2025
Medium
Software EngineerExplain a domain project in depth
Behavioral & Leadership Prompt: Deep-Dive Project Walkthrough (STAR) Provide a detailed walkthrough of a complex, high-impact project you led or co-le...
Behavioral & Leadership
8
0
125 people solved
Aug 13, 2025
Medium
Software EngineerDecide and implement DP/heap and approximation
You have 90 minutes to complete three related coding tasks: a) Dynamic programming: Given an integer array nums (n ≤ 2e 5) and a threshold T, design a...
Coding & Algorithms
23
0
171 people solved
Aug 13, 2025
Medium
Machine Learning EngineerCompute currency conversion via graph search
Given a list of currency pairs, e.g., [('USD','CAD'), ('CAD','EUR'), ...], and a parallel list of conversion ratios [1.1, 1.2, ...] where ratio r mean...
Coding & Algorithms
8
0
126 people solved
Aug 13, 2025
Medium
Software EngineerImplement price-based order matcher
Design and implement a price-based order matcher for unit-sized orders. You are given an array orders where each element is [type, price]: type = 1 de...
Coding & Algorithms
40
0
396 people solved
Aug 13, 2025
Medium
Software EngineerDesign BFS to detect forced win in Tic-Tac-Toe
You are given an n×n Tic-Tac-Toe–like board and a target k (1 ≤ k ≤ n). From the current board state and the player to move, design an algorithm to de...
Coding & Algorithms
18
0
169 people solved
Aug 13, 2025
Medium
Software EngineerDescribe improving workflow and challenges
Behavioral: Improving a Team's Development Workflow You are a software engineer in a technical screen. Answer using a concise, structured story (e.g.,...
Behavioral & Leadership
4
0
79 people solved
Aug 13, 2025
Medium
Software EngineerFetch and parse JSON from REST API
Question Set up a minimal coding environment from scratch and write runnable code that fetches and processes data from a REST API. You are given an en...
Data Manipulation (SQL/Python)
8
0
70 people solved
Aug 13, 2025
Medium
Software Engineer LockedExplain Kafka Reliability and Offset Recovery
This question evaluates understanding of distributed messaging and event-processing concepts, specifically partitioning effects on ordering, paralleli...
Software Engineering Fundamentals
3
0
28 people solved
Oct 20, 2025
Medium
Software EngineerImplement list, form, and API rendering with pitfalls
Take-home: Build a Small Frontend App (List + Form + API + A11y) Goal Implement a simple web app that demonstrates core frontend skills: rendering fro...
Software Engineering Fundamentals
7
0
53 people solved
Aug 12, 2025
Medium
Software EngineerExplain arrays and memory layout
What is an array? How is an array represented in memory (contiguous layout, element size and alignment, indexing arithmetic). Analyze time complexitie...
Coding & Algorithms
10
0
92 people solved
Aug 12, 2025
Medium
Software EngineerParse CSV and format transactions
Given a CSV file containing many transactional records with columns Merchant, Amount, Date (YYYY-MM-DD), and Status, write a script to parse the file ...
Data Manipulation (SQL/Python)
1
0
18 people solved
Aug 12, 2025
Medium
Software EngineerImplement text formatter and sum subarray products
1) Text formatter (LC-inspired variant): Given an array of words and an integer maxWidth W >= 1, break the words into lines so that the total length o...
Coding & Algorithms
5
0
82 people solved
Aug 12, 2025
Medium
Software EngineerHow do you tackle unfamiliar problems?
Behavioral questions 1. Project deep dive: Briefly introduce yourself and walk through 1–2 past projects you worked on. Pick one problem you solved th...
Behavioral & Leadership
6
0
69 people solved
Jan 4, 2026
Hard
Software EngineerNavigate conflict, difficult people, and culture issues
Answer the following behavioral questions with clear examples (preferably using the STAR method: Situation, Task, Action, Result). Be explicit about y...
Behavioral & Leadership
3
0
36 people solved
Jan 4, 2026
Hard
Software EngineerDesign an experiment assignment service
Design an Online Experimentation (A/B Testing) Assignment Service You are asked to design a highly available online experiment assignment service. The...
Analytics & Experimentation
9
0
73 people solved
Aug 11, 2025
Hard
Machine Learning EngineerImplement attention and nucleus sampling; compare to top-k
Implement Multi‑Head Attention and Nucleus (Top‑p) Sampling Context You are building core components used in Transformer-based language models. Implem...
Machine Learning
8
0
71 people solved
Aug 11, 2025