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
Hard
Software EngineerDesign ads frequency capping service
Design an Ads Frequency Capping Service Context You are designing a service that ensures a user does not see the same ad creative or campaign more tha...
System Design
38
0
588 people solved
Jul 17, 2025
Medium
Software EngineerImplement Recursive React JSON Viewer with Collapse
Implement Recursive React JSON Viewer with Collapse React JSON Tree Viewer (Read-Only, Recursive) Design and implement a React component that accepts ...
Software Engineering Fundamentals
46
0
317 people solved
Jul 17, 2025
Hard
Software EngineerDesign flight-price search service
Design flight-price search service System Design: Cheapest Flight Search Across Multiple Providers Context Design a backend system that searches multi...
System Design
19
0
185 people solved
Jul 17, 2025
Medium
Software Engineer LockedSolve Flower Placement and Directory Deletion
This question evaluates combinatorial constraint-satisfaction and permutation/matching skills for the flower-placement grid alongside filesystem trave...
Coding & Algorithms
5
0
59 people solved
May 8, 2026
Hard
Software EngineerDesign Search Autocomplete
Design a large-scale autocomplete service for a search engine. As a user types a query prefix, the system should return the top 5 suggested full queri...
System Design
9
0
57 people solved
Apr 12, 2026
Medium
Software EngineerImplement an Integer Hash Map
Design a data structure MyHashMap that stores integer keys and integer values without using any built-in hash table library. Implement the following o...
Coding & Algorithms
6
0
69 people solved
Feb 25, 2026
Hard
Software EngineerApply Range Overwrite Queries
You are given an integer array nums of length n and a list of range-assignment queries. Each query is a tuple (left, right, value), where left and rig...
Coding & Algorithms
22
2
237 people solved
Feb 25, 2026
Medium
Data ScientistDesign Testing Without A/B Experiments
Suppose a product team wants to evaluate a new feature that is intended to improve user engagement and long-term retention, but a clean randomized A/B...
Analytics & Experimentation
5
0
88 people solved
Feb 25, 2026
Easy
Software EngineerDiscuss AI Use, Deadlines, Ambiguity, and Feedback
Discuss AI Use, Deadlines, Ambiguity, and Feedback Prepare evidence-based responses to the following behavioral themes. Use distinct examples where po...
Behavioral & Leadership
1
0
13 people solved
Mar 19, 2026
Hard
Software EngineerImplement a robust REST API method
Implement a robust REST API method Design and implement a REST API method to create a resource with idempotency Context You are building a create endp...
System Design
25
0
191 people solved
Jul 15, 2025
Medium
Software EngineerCount Complete Tic-Tac-Toe Game Sequences
Count Complete Tic-Tac-Toe Game Sequences Two players play on a standard 3 x 3 board. X moves first and the players alternate. A game ends immediately...
Coding & Algorithms
2
0
21 people solved
Jul 10, 2026
Hard
Software EngineerProduct of Array Except Self Without Division
Product of Array Except Self Without Division Given an integer array, return an array in which output[i] is the product of every input element except ...
Coding & Algorithms
0
0
13 people solved
Jul 10, 2026
Medium
Software EngineerFind Heap Objects Not Referenced by the Stack
Find Heap Objects Not Referenced by the Stack Each heap object has a unique integer address. In this first version, heap objects do not reference one ...
Coding & Algorithms
1
0
16 people solved
Jul 10, 2026
Medium
Software EngineerSenior+Present a Project With Correctness Guarantees
Prepare a 1-2 slide presentation about a system or product you personally built, owned, or significantly improved. In the interview, walk through: - t...
Behavioral & Leadership
6
0
116 people solved
Jan 14, 2026
Medium
Machine Learning EngineerSenior+ LockedFind Windows Containing a Target
This question evaluates array traversal and interval-containment reasoning, including handling inclusive endpoints, overlapping intervals, and preserv...
Coding & Algorithms
1
0
13 people solved
May 7, 2026
Medium
Software Engineer LockedImplement Minesweeper and Word Search
This multi-part prompt evaluates grid-based algorithmic skills, including randomized board construction with neighbor counting, straight-line pattern ...
Coding & Algorithms
2
0
17 people solved
May 7, 2026
Medium
Software EngineerChoose Long-Term Correctness over a Short-Term Win
Prompt Describe a decision in which you gave up a short-term benefit to protect a more important long-term outcome. Explain the competing incentives, ...
Behavioral & Leadership
0
0
4 people solved
Apr 11, 2026
Medium
Software EngineerTake Ownership Beyond Your Assigned Responsibilities
Prompt Describe a time you voluntarily took responsibility beyond your original assignment because an important project outcome was at risk. Explain w...
Behavioral & Leadership
0
0
4 people solved
Apr 11, 2026
Medium
Software EngineerGenerate Every Generalized Abbreviation of a Word
Problem Generate every valid generalized abbreviation of a lowercase word. Each character may either remain literal or be included in a positive skip ...
Coding & Algorithms
0
0
4 people solved
Apr 11, 2026
Medium
Software EngineerValidate a Generalized Word Abbreviation
Problem Determine whether an abbreviation validly represents a word. An abbreviation contains lowercase letters and positive decimal numbers. A number...
Coding & Algorithms
0
0
4 people solved
Apr 11, 2026