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 Engineer LockedSolve anagram grouping and in-place allocator
This two-part question evaluates algorithmic problem-solving across string grouping and constrained in-place memory allocation, testing string-process...
Coding & Algorithms
6
0
54 people solved
Dec 21, 2025
Easy
Software EngineerExplain C++ memory, types, and concurrency fundamentals
Explain C++ memory, types, and concurrency fundamentals Answer the following C++ / systems fundamentals questions: 1) C++ class vs struct - What are t...
Software Engineering Fundamentals
1
0
26 people solved
Jul 21, 2025
Easy
Software EngineerSolve common data-structure and puzzle problems
Solve common data-structure and puzzle problems Solve the following independent problems (language of your choice; assume typical 32/64-bit constraint...
Coding & Algorithms
2
0
38 people solved
Jul 21, 2025
Medium
Machine Learning Engineer LockedApproach an ambiguous business problem
This question evaluates a candidate's ability to handle ambiguity in ML system design by assessing skills in stakeholder communication, problem scopin...
ML System Design
3
0
40 people solved
Dec 20, 2025
Medium
Software EngineerImplement Wordle-style word guessing solver
Implement Wordle-style word guessing solver Implement a program to solve a Wordle-style word guessing game. The game has a hidden target word of fixed...
Coding & Algorithms
19
0
268 people solved
Jul 17, 2025
Hard
Machine Learning EngineerDesign a house-price prediction workflow
Design a house-price prediction workflow Predicting Home Sale Prices: End-to-End ML Design Context You have historical home-sale records with features...
Machine Learning
6
0
106 people solved
Jul 17, 2025
Medium
Software EngineerImplement React logic with TypeScript hooks
Implement React logic with TypeScript hooks React + TypeScript List Manager Context You are building a small UI during an onsite interview. Implement ...
Software Engineering Fundamentals
7
0
59 people solved
Jul 17, 2025
Medium
Software EngineerDemonstrate motivation, ownership, and customer focus
Demonstrate motivation, ownership, and customer focus Behavioral and Leadership Interview (Software Engineer, Onsite) Instructions - Use STAR (Situati...
Behavioral & Leadership
4
0
47 people solved
Jul 17, 2025
Hard
Machine Learning EngineerBuild an end-to-end ML pipeline
Build an end-to-end ML pipeline ML System Design: Shipment Delay Risk Scoring From a Single CSV You are given a CSV of shipment events with the follow...
ML System Design
6
0
90 people solved
Jul 17, 2025
Hard
Machine Learning EngineerDeep-dive your GenAI project architecture
Deep-dive your GenAI project architecture GenAI System Deep-Dive: End-to-End Design and Scale Strategy Provide a structured walkthrough of a productio...
ML System Design
6
0
76 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
20 people solved
Jul 17, 2025
Medium
Software EngineerImplement tiered shipping calculator
Implement tiered shipping calculator Implement in JavaScript a shipping-cost calculator with three progressively richer pricing models based on a conf...
Coding & Algorithms
4
0
37 people solved
Jul 17, 2025
Easy
Data Scientist LockedDesign metrics and experiment for stolen-post detection
Evaluates skills in metrics design, diagnostic analysis, and online experiment methodology within Analytics & Experimentation for a Data Scientist pos...
Analytics & Experimentation
13
0
92 people solved
Dec 18, 2025
Easy
Data ScientistCompute reply-based user metrics in 7 days
You are analyzing discussions on a social platform. Tables all_post - post_id (BIGINT, PK) - post_author_id (BIGINT, FK → user.user_id) - post_creatio...
Data Manipulation (SQL/Python)
21
1
174 people solved
Dec 18, 2025
Hard
Product ManagerInternExplain your fit and motivation
Explain your fit and motivation In a TikTok internship interview, a candidate may be asked several behavioral questions such as: 1. What experience do...
Behavioral & Leadership
11
0
103 people solved
Jul 16, 2025
Hard
Software EngineerImplement a React CRUD Table
Implement a React CRUD Table React CRUD Data Table — Build and Explain Context Design and implement a React application that renders a data table with...
Software Engineering Fundamentals
16
0
117 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
132 people solved
Jul 16, 2025
Medium
Software EngineerExplain deadlines, going beyond, and persuasion
Explain deadlines, going beyond, and persuasion Behavioral Prompt: Delivery Under Pressure, Exceeding Expectations, and Influencing Stakeholders Conte...
Behavioral & Leadership
4
0
32 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
96 people solved
Jul 16, 2025
Medium
Software EngineerDesign a duplicate-file removal algorithm
Design a duplicate-file removal algorithm Your filesystem contains millions of photos. Duplicates are strictly byte-identical files (no ML/CV similari...
Coding & Algorithms
10
0
120 people solved
Jul 16, 2025