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 EngineerSenior+Explain HashMap Resizing Without Long Pauses
Explain how a hash map works internally. Cover how keys are mapped to buckets, how collisions are handled, and when the table decides to resize. Follo...
Software Engineering Fundamentals
2
0
37 people solved
Oct 28, 2025
Medium
Software EngineerInternDiscuss goals, experience, conflicts, and logistics
Discuss goals, experience, conflicts, and logistics Behavioral & Leadership Screen — Software Engineer Internship Context You are interviewing for a s...
Behavioral & Leadership
6
0
52 people solved
Aug 9, 2025
Medium
Software EngineerShare background, conflicts, and proud project details
Share background, conflicts, and proud project details Behavioral & Leadership HR Screen — Software Engineer Context You are in an HR screen for a Sof...
Behavioral & Leadership
6
0
119 people solved
Aug 9, 2025
Medium
Software Engineer LockedSolve Matrix and Array Distance Problems
This question evaluates competency in graph traversal and shortest-path reasoning for grid-based problems as well as array-based distance computation ...
Coding & Algorithms
1
0
19 people solved
May 23, 2026
Medium
Machine Learning Engineer LockedImplement Autoregressive Decoding Strategies
This question evaluates proficiency with autoregressive sequence generation, probabilistic sampling methods (greedy, top-k, top-p), softmax-based prob...
Coding & Algorithms
0
0
11 people solved
May 23, 2026
Hard
Software Engineer LockedBuild Quadtree and Find Grid Words
This question evaluates divide-and-conquer tree construction and recursive spatial data structures for the quadtree task, and grid-based search and ba...
Coding & Algorithms
7
0
89 people solved
Jan 26, 2026
Hard
Software Engineer LockedDesign Historical Visit Tracker
This question evaluates design of in-memory data structures and event-processing APIs, focusing on efficient state maintenance for historical timestam...
Software Engineering Fundamentals
8
0
60 people solved
Jan 26, 2026
Hard
Software EngineerFind Affected Services After Shutdown
You are given a set of services and their dependency relationships. The input is a hash map where each key is a service name, and the value is a list ...
Coding & Algorithms
37
0
360 people solved
Jan 26, 2026
Medium
Software EngineerImplement an LRU cache
Design and implement a data structure for a Least Recently Used (LRU) cache with a fixed capacity. The cache must support: - get(key): return the valu...
Coding & Algorithms
9
0
75 people solved
Jan 26, 2026
Medium
Software EngineerImplement a GPU credit manager
Implement a GPU credit manager for a compute cluster. Each user has a nonnegative credit balance that can be increased (grantCredits(user, amount)), c...
Coding & Algorithms
23
0
286 people solved
Aug 8, 2025
Medium
Software EngineerCount queen attacks on points with blockers
You are given positions on an (unbounded) 2D integer grid. - queens: coordinates of queens - points: query coordinates A queen attacks along 8 directi...
Coding & Algorithms
53
0
395 people solved
Dec 9, 2025
Medium
Machine Learning Engineer LockedDesign recommendation and weapon-ad detection systems
This question evaluates proficiency in end-to-end ML system design, covering scalable recommendation systems and safety-focused ad classification with...
ML System Design
9
0
85 people solved
Dec 9, 2025
Hard
Software Engineer LockedSolve Throughput, Rate Limiting, and LFU
This set of tasks evaluates algorithmic problem-solving, data structure design, and systems-oriented reasoning by testing throughput calculation, roll...
Coding & Algorithms
10
0
92 people solved
Mar 20, 2026
Medium
Machine Learning EngineerExplain parallelism and collectives in training
Parallelism strategies and communication in large-scale training You are designing a distributed training setup for very large neural networks that ca...
ML System Design
8
0
90 people solved
Dec 8, 2025
Medium
Software EngineerSolve restaurant path and order event tasks
You are given two independent coding tasks. Task 1: Shortest paths in a restaurant grid Context: A restaurant is represented as a 2D grid. The waiter ...
Coding & Algorithms
25
0
199 people solved
Dec 8, 2025
Easy
Machine Learning EngineerList hyperparameter tuning methods
Describe common methods for hyperparameter tuning in machine learning. For each method, explain: - How it works conceptually. - Its advantages and dis...
Machine Learning
16
0
104 people solved
Dec 8, 2025
Hard
Machine Learning EngineerDefine QKV for recommender cross-attention
You are designing a deep-learning–based recommendation system that uses a Transformer-style cross-attention block to model the interaction between a u...
Machine Learning
7
0
67 people solved
Dec 8, 2025
Medium
Software EngineerExplain handling a tight project deadline
In a behavioral interview for a software engineering or technical role, you are asked: > Describe a time you had to work under a very tight deadline. ...
Behavioral & Leadership
3
0
49 people solved
Dec 8, 2025
Medium
Software EngineerCompute party time blocks per neighborhood
You are given two datasets: 1. Parties: - party_id (string or integer) - start_timestamp (e.g., UNIX timestamp or datetime) - end_timestamp (...
Coding & Algorithms
29
0
269 people solved
Dec 8, 2025
Medium
Software EngineerFind user pairs with overlapping last K movies
You are given the same user movie-watching histories as in the previous problem. Each user’s history is an ordered list of movie IDs from earliest to ...
Coding & Algorithms
22
0
150 people solved
Dec 8, 2025