Hudson Interview Questions
Practice 24 real interview questions from Hudson. Covers Software Engineering Fundamentals, Coding & Algorithms, Machine Learning, Behavioral & Leadership. For roles including Software Engineer, Data Scientist, Machine Learning Engineer.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Simulate Players Moving Under a Watcher's Gaze
Simulate Players Moving Under a Watcher's Gaze A one-dimensional road starts at 0 and ends at length. Each player begins at a supplied position and wa...
Explain and Diagnose a Segmentation Fault
Explain and Diagnose a Segmentation Fault Explain what a segmentation fault represents in a native program, how it relates to virtual-memory protectio...
Explain C++ Inline Semantics and Trade-Offs
Explain C++ Inline Semantics and Trade-Offs Explain what the C++ inline keyword means, how that differs from a compiler actually substituting a functi...
Compare C++ Pointers and References
Compare C++ Pointers and References Compare C++ pointers and references. Explain initialization, nullability, reseating, syntax, arithmetic, ownership...
Linux Host and Filesystem Fundamentals
Linux Host and Filesystem Fundamentals Clarifying Questions to Ask - Which Linux distribution and shell should be assumed? - Are privileged commands a...
C++ Fundamentals: Memory, Compilation, and Containers
This question tests deep knowledge of C++ internals, covering memory management, compilation mechanics, and standard container trade-offs. It evaluate...
Explain Python and React performance fundamentals
In a phone screen for a full-stack software engineering role, you may be asked a group of fundamentals questions such as: - Explain what a Python cont...
Compare C++ new, malloc, and Placement new
Compare C++ new, malloc, and Placement new Explain what happens when a C++ new expression is evaluated, how it differs from malloc, what placement new...
Compare Stack and Heap Memory and Probe Stack Direction
Compare Stack and Heap Memory and Probe Stack Direction Explain the practical differences between automatic storage commonly implemented with a call s...
Check Root-To-Leaf Target Sums In A Binary Tree
You are given the root of a binary tree and an integer target. Each node contains an integer value. Return true if there is at least one path from the...
Reason About C++ Inlining, Allocation, and Polymorphism
This C++ systems interview question evaluates conceptual and practical understanding of inlining, memory allocation strategies, and static versus dyna...
Python Language and Runtime Fundamentals
Python Language and Runtime Fundamentals Clarifying Questions to Ask - Should answers describe CPython specifically or Python language semantics acros...
Solve Dice Probability and Matrix Questions
This question evaluates probability reasoning for modular distributions of sums of independent dice and linear algebra competency regarding matrices w...
Why pursue full-stack engineering?
You are interviewing for a full-stack software engineering role. Explain why you are specifically interested in full-stack work instead of focusing on...
Build a Heart Disease Baseline
You are given a tabular dataset for predicting whether a patient has heart disease. The dataset contains a binary target column such as has_heart_dise...
Count players reaching end with moving watchers
This question evaluates skills in discrete-event simulation, stateful time-step modeling, and range coverage by moving agents, as well as algorithmic ...
Implement Buffer Parsers and Generic Map Class
This question evaluates proficiency in low-level C++ buffer parsing, memory and pointer management, safe binary deserialization, and template-based ge...
Count inversions in a permutation
Problem Given an array a of length n that is a permutation of distinct integers (e.g., 1..n), define an inversion as a pair of indices (i, j) such tha...
Derive expected inversions and mean distribution
This question evaluates understanding of permutation inversion statistics, computation of random-variable moments (expectation and variance), and the ...
Return the K Smallest Integers
Return the K Smallest Integers Given an unsorted list of integers and an integer k, return the k smallest values in ascending order. Preserve duplicat...