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
Machine Learning EngineerImplement inventory allocation with backorders
Implement inventory allocation with backorders Design and implement a function to process an event stream for an e-commerce marketplace. Input: ( 1) i...
Coding & Algorithms
1
0
28 people solved
Jul 17, 2025
Medium
Software EngineerImplement cheapest itinerary with date filters
Implement a function that computes the cheapest itinerary from a given origin to a destination using a list of flights, where each flight has (id, sou...
Coding & Algorithms
8
0
118 people solved
Jul 17, 2025
Medium
Software EngineerSolve snake game, peak search, and task scheduling
Solve snake game, peak search, and task scheduling 1) Design a grid-based snake simulation that supports move(direction) operations on a W×H board. Th...
Coding & Algorithms
4
0
74 people solved
Jul 17, 2025
Medium
Software EngineerExplain Java DI, AOP, and transactions
Explain how dependency injection and AOP proxies are implemented in a modern Java framework such as Spring: bean lifecycle (creation, post-processing,...
Coding & Algorithms
2
0
19 people solved
Jul 17, 2025
Medium
Software EngineerIdentify OS component causing process starvation
A system with 2 CPU cores runs 5 identical processes continuously. Four processes get equal CPU time, but the fifth appears to get none. Which part of...
Coding & Algorithms
6
0
93 people solved
Jul 17, 2025
Medium
Software EngineerDescribe Past Project And Debugging Approach
Describe Past Project And Debugging Approach Behavioral + Technical Leadership: End-to-End Project and Production Bug Provide a recent, specific examp...
Behavioral & Leadership
10
0
82 people solved
Jul 16, 2025
Medium
Software EngineerSolve two DS&A optimization problems
Problem 1 — Maximize alternating-sum over four array partitions: Given an integer array arr[1..n] (1-based). Choose indices a, b, c with 1 ≤ a ≤ b ≤ c...
Coding & Algorithms
8
0
131 people solved
Jul 16, 2025
Medium
Software EngineerDescribe achievements, ambiguity, conflict, efficiency, challenges
Describe achievements, ambiguity, conflict, efficiency, challenges Behavioral Technical Screen — Multi-part Prompt Context: You are interviewing for a...
Behavioral & Leadership
2
0
31 people solved
Jul 16, 2025
Medium
Machine Learning EngineerFind shortest word transformation with caching
Find shortest word transformation with caching You are given a start word and an end word of equal length, and a dictionary of valid words. In one mov...
Coding & Algorithms
10
0
95 people solved
Jul 16, 2025
Medium
Machine Learning EngineerCompute total covered interval length
Compute total covered interval length Given a list of integer intervals [l, r) (half-open), compute the total length covered by at least one interval....
Coding & Algorithms
13
0
107 people solved
Jul 16, 2025
Medium
Data EngineerWrite SQL for library analytics
Given a library database, write SQL to answer the following: 1) Count the number of books that are currently not returned (i.e., still checked out) an...
Data Manipulation (SQL/Python)
1
0
15 people solved
Jul 16, 2025
Medium
Software EngineerMaximize funds with capital-gated projects
Maximize funds with capital-gated projects You start with initial funds W and may undertake at most K projects. Each project i has a required capital ...
Coding & Algorithms
4
0
59 people solved
Jul 16, 2025
Medium
Software EngineerDesign and implement Connect Four engine
Design and implement a Connect Four game engine. Use a default 6x7 board and two players. Provide an API with: drop(col, player) returning the row pla...
Coding & Algorithms
14
0
126 people solved
Jul 16, 2025
Medium
Software EngineerSimulate return-weighted rebalancing strategy
Simulate return-weighted rebalancing strategy Problem: Momentum-weighted daily log-return statistics You have N assets with end-of-day prices over T t...
Analytics & Experimentation
7
0
120 people solved
Jul 16, 2025
Medium
Software EngineerCount nonnegative buy/sell sequences
You must perform exactly 2n unit trades starting with 0 shares and ending with 0 shares. Each trade is either a buy (+1 share) or a sell (−1 share), a...
Coding & Algorithms
18
0
131 people solved
Jul 16, 2025
Medium
Software EngineerImplement Markdown-to-HTML parser
Implement a function that converts a plain-text string into HTML supporting only these features: ( 1) Paragraphs: two or more consecutive newline char...
Coding & Algorithms
16
0
190 people solved
Jul 16, 2025
Medium
Software EngineerCompute minimal cost to merge numbers
Compute minimal cost to merge numbers Given an array of positive integers, you may repeatedly perform the following operation until one number remains...
Coding & Algorithms
4
0
42 people solved
Jul 16, 2025
Medium
Software EngineerImplement uniform sampling in squares
Implement uniform sampling in squares Implement a class Square representing an axis-aligned square on the 2D plane that supports sampling a uniformly ...
Coding & Algorithms
6
0
76 people solved
Jul 15, 2025
Hard
Machine Learning EngineerDesign async job orchestration and notification service
Design async job orchestration and notification service System Design: Batch Orchestration Over an External Asynchronous Cluster Context You are desig...
System Design
2
0
48 people solved
Jul 15, 2025
Medium
Software EngineerDecide string transform with directional tokens and walls
Decide string transform with directional tokens and walls You are given two equal-length strings start and target of length n, each consisting only of...
Coding & Algorithms
5
0
60 people solved
Jul 15, 2025