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 EngineerApproach verbose data-structure design
For a data-structure design problem whose behavior is easy to understand but whose implementation is lengthy, describe your step-by-step approach: cla...
Coding & Algorithms
16
0
213 people solved
Sep 6, 2025
Hard
Software EngineerDesign multi-core service startup scheduler
Service Startup Scheduler on a Host with M CPU Cores Context You are given a directed acyclic graph (DAG) of services where an edge u → v means servic...
System Design
13
0
203 people solved
Sep 6, 2025
Medium
Software EngineerExplain database transactions and ACID
Database Transactions and ACID under Concurrency Prompt You are working with a relational database that supports transactions and multiple isolation l...
System Design
11
0
88 people solved
Sep 6, 2025
Medium
Software EngineerClarify employment type at Microsoft
Behavioral Question: Contractor vs Full‑Time Experience at Microsoft Context You are in a Software Engineer onsite behavioral round. The interviewer w...
Behavioral & Leadership
8
0
106 people solved
Sep 6, 2025
Hard
Software EngineerDesign scenario-based speaking feature
System Design: Scenario-Based Speaking Practice for a Multilingual Learning App Goal Design a scenario-based speaking practice feature where users sel...
System Design
6
0
81 people solved
Sep 6, 2025
Medium
Software EngineerSolve a two-jug measuring problem
You are given two jugs with capacities x and y liters and an unlimited water source. You may perform these operations: fill a jug, empty a jug, or pou...
Coding & Algorithms
7
0
71 people solved
Sep 6, 2025
Hard
Machine Learning EngineerDesign scalable media storage and delivery
System Design: Global UGC Photos and Short Videos Store/Delivery Context Design a globally distributed system to store and deliver user-generated phot...
System Design
8
0
55 people solved
Sep 6, 2025
Medium
Machine Learning EngineerDetect cycles and order with DFS
You are given a directed graph of package dependencies represented as an adjacency list: Map<String, List<String>> deps where deps[p] lists packages t...
Coding & Algorithms
5
0
65 people solved
Sep 6, 2025
Hard
Software EngineerDesign a scalable banking system
System Design: Core Banking Platform Problem Design a banking system that supports: - Account creation - Balance inquiry - Deposit and withdrawal - At...
System Design
4
0
49 people solved
Sep 6, 2025
Medium
Software EngineerUse Excel formulas to compute haircuts
You are given an Excel worksheet with columns such as Asset, Market Value, and Haircut %. Using only cell references (no copy-paste of numeric values)...
Data Manipulation (SQL/Python)
1
0
12 people solved
Sep 6, 2025
Medium
Software EngineerImplement multi-network card validator with Luhn
Design and implement a payment card validation module that supports multiple networks and error scenarios. Requirements: 1) Luhn checksum - Implement ...
Coding & Algorithms
2
0
18 people solved
Sep 6, 2025
Medium
Software EngineerImplement a React flag loader with typewriter effect
Scenario You are given a small React + TypeScript project with a Mocha test runner (and an autograder). The task is a practical front-end mini-project...
Software Engineering Fundamentals
9
0
187 people solved
Oct 26, 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
1
0
18 people solved
Jan 31, 2025
Hard
Software Engineer LockedImplement Journey Counter and Speeder Detector
This question evaluates parsing, time-series processing, and algorithmic reasoning for detecting complete journeys and speed violations from structure...
Coding & Algorithms
6
0
92 people solved
Feb 20, 2026
Medium
Software Engineer LockedFind Shortest Knight Path
This question evaluates a candidate's ability to model grid-based movement as a graph and apply shortest-path traversal techniques, testing algorithmi...
Coding & Algorithms
5
0
39 people solved
Feb 20, 2026
Medium
Software Engineer LockedSolve array-sum and city-community problems
This question evaluates array-processing and grid/graph connectivity skills, covering counting subarrays with a target sum and identifying connected b...
Coding & Algorithms
7
0
63 people solved
Feb 20, 2026
Hard
Software EngineerCount Squares Formed by Segments
Count Squares Formed by Segments You are given axis-aligned line segments with integer coordinates. Each segment is represented by two endpoints. One ...
Coding & Algorithms
1
0
10 people solved
May 5, 2026
Medium
Software EngineerSenior+ LockedImplement Store Autocomplete
This question evaluates string matching, prefix search, and data structure selection skills by requiring an autocomplete method that returns entries b...
Coding & Algorithms
2
0
20 people solved
May 5, 2026
Medium
Software Engineer LockedDesign trending queries ranking system
This question evaluates the ability to design scalable, low-latency ML-driven systems for detecting and ranking trending queries, covering competencie...
ML System Design
14
0
120 people solved
Sep 4, 2025
Easy
Product Analyst LockedInvestigate LA successful orders drop
This question evaluates product and data analytics competencies including metric decomposition, causal inference, funnel analysis, and experimentation...
Analytics & Experimentation
15
0
127 people solved
Feb 19, 2026