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 EngineerSchedule batched register operations optimally
Problem You are given a text file that describes batches of register operations (reads and writes) on integer-indexed registers. Your task is to sched...
Coding & Algorithms
16
0
123 people solved
Nov 13, 2025
Easy
Software EngineerEqualize Root-to-Leaf Sums in an N-ary Tree
Equalize Root-to-Leaf Sums in an N-ary Tree You are given a rooted tree. Node i has nonnegative value values[i]. In one operation, you may increase on...
Coding & Algorithms
0
0
11 people solved
Apr 17, 2026
Easy
Software EngineerDescribe a Favorite Project and Its Hardest Technical Challenge
Describe a Favorite Project and Its Hardest Technical Challenge Prompt Tell me about a project you are especially proud of or enjoyed working on. Expl...
Behavioral & Leadership
1
0
13 people solved
Apr 17, 2026
Hard
Software EngineerDetermine Whether a Word Exists in a Character Grid
Given a 2D character grid and a word, return whether the word can be formed by moving horizontally or vertically between adjacent cells without reusin...
Coding & Algorithms
0
0
13 people solved
Apr 17, 2026
Easy
Software EngineerImplement a Leaky Bucket Rate Limiter
Implement a leaky bucket rate limiter. You are given a class template for a rate limiter that controls whether incoming requests should be accepted or...
Coding & Algorithms
1
0
6 people solved
Apr 17, 2026
Medium
Data ScientistExplain Type I/II errors vs precision/recall
In the context of binary classification and hypothesis testing: 1) Define Type I error and Type II error. 2) Explain how they relate to false positive...
Statistics & Math
4
0
48 people solved
Nov 12, 2025
Medium
Data ScientistWalk through a data pipeline project
Describe a data pipeline project you built or owned end-to-end. In your answer, cover: - The business problem and downstream consumers (dashboards, mo...
Behavioral & Leadership
10
0
73 people solved
Nov 12, 2025
Medium
Machine Learning Engineer LockedDesign training for multimodal embedding model
This question evaluates proficiency in end-to-end multimodal embedding system design, including model architecture, supervision and loss strategies, e...
ML System Design
5
0
57 people solved
Jan 22, 2026
Medium
Machine Learning Engineer LockedCompute minimum path sum in a triangle
This question evaluates proficiency in dynamic programming and algorithmic problem-solving within the Coding & Algorithms domain, focusing on handling...
Coding & Algorithms
4
0
47 people solved
Jan 22, 2026
Medium
Software EngineerIntern LockedMaximize minimum value after k decrements
This question evaluates array-based optimization skills, resource-allocation reasoning under a fixed decrement budget, and algorithmic complexity anal...
Coding & Algorithms
2
0
33 people solved
Jan 22, 2026
Medium
Machine Learning EngineerSenior+ LockedFind two numbers summing to target without hashmap
This question evaluates array manipulation, index-tracking, and algorithmic problem-solving skills, with emphasis on time and space complexity trade-o...
Coding & Algorithms
5
0
75 people solved
Jan 22, 2026
Hard
Software Engineer LockedDecode a password string into letters
This question evaluates string parsing and encoding/decoding skills, specifically mapping numeric tokens and handling delimiter characters within the ...
Coding & Algorithms
16
0
139 people solved
Jan 22, 2026
Medium
Software Engineer LockedFind when failures started in log stream
This question evaluates understanding of monotonic sequences and search algorithms (such as binary search), along with algorithmic reasoning about cor...
Coding & Algorithms
5
0
90 people solved
Jan 22, 2026
Medium
Software Engineer LockedCompute nearest gate distance in grid
This question evaluates grid traversal, distance propagation, obstacle handling, and in-place matrix update competencies within the Coding & Algorithm...
Coding & Algorithms
13
0
143 people solved
Jan 22, 2026
Hard
Software Engineer LockedSolve sliding window, heap, DP, in-place tasks
This set evaluates proficiency with core algorithmic patterns—sliding-window techniques, heap-based top-k selection, dynamic programming for unbounded...
Coding & Algorithms
29
0
215 people solved
Jan 22, 2026
Hard
Software Engineer LockedSerialize and deserialize a binary tree
This question evaluates competency in designing robust serialization formats and manipulating binary tree data structures, including preservation of s...
Coding & Algorithms
8
0
73 people solved
Jan 22, 2026
Hard
Software EngineerSenior+ LockedChoose lock granularity for concurrent storage
This question evaluates understanding of concurrency control and lock-granularity trade-offs in concurrent storage components, including coarse-graine...
Software Engineering Fundamentals
6
0
76 people solved
Jan 22, 2026
Hard
Software EngineerSenior+ LockedDesign a replicated cloud storage service
This question evaluates a candidate's system-design competency in distributed cloud storage, covering metadata/data separation, replication models, re...
System Design
17
0
226 people solved
Jan 22, 2026
Medium
Software EngineerSenior+Handle security vs velocity conflicts across teams
Describe a time when you had to balance security requirements with business/product delivery speed, especially involving cross-team collaboration. Inc...
Behavioral & Leadership
9
0
99 people solved
Jan 22, 2026
Hard
Software Engineer LockedDesign a live-stream comments system
This question evaluates design skills for scalable, low-latency real-time comment systems, covering architecture, data modeling, APIs, ingestion and f...
System Design
7
0
79 people solved
Jan 22, 2026