Interview Questions
Practice the exact questions companies are asking right now.
"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."
Solve Markov, OLS-rotation, and coin-toss probability
Answer the following three interview questions. 1) Basic properties of a Markov (transition) matrix Let \(P\) be a transition matrix of a (time-homoge...
Compare Complete or Partial Hands
Implement a hand comparison engine for a simplified poker-like card game. Each player has a hand represented by an array of card strings. A card is en...
How would you measure impact?
A payments company launches a new fraud-screening feature that adds an extra risk check before approving certain transactions. Leadership wants to kno...
Design a file search module like UNIX find
Design Task: Object-Oriented module that mimics UNIX find Context Design an object-oriented library that replicates the core functionality of the UNIX...
Design a Production-Ready URL Shortener
System Design: Production-Ready URL Shortening Service Goal Design a production-ready URL shortening service that can issue short links, resolve them ...
Design a multi-device calendar application
System design prompt Design a calendar application similar to Apple Calendar. Core features - Users can create, update, and delete events. - The UI mu...
Can All Courses Be Completed?
Can All Courses Be Completed? You are enrolling in a program with numCourses courses, labeled 0 to numCourses - 1. Some courses have prerequisites: yo...
Present Piracy Trends to a PM
You ran the analyses above and got two preliminary findings: - the monthly pirated-theme usage rate appears to rise from 0% to 100% over the observed ...
Implement and Tune KNN Classifier
You are given two CSV files for a three-class leaf-classification task. - train.csv contains three numeric feature columns: feature_0, feature_1, and ...
Validate Nested Configuration Objects
You are given a set of custom descriptor objects that define the expected schema of a configuration object. Implement a validator that checks whether ...
Design scalable worker pool for template jobs
You have implemented a function that takes a template string (or many template strings) and replaces placeholders like {{db_host}} and {{db_port}} usi...
Design a low-latency trading platform
Design the architecture for a high-frequency fixed-income trading system. The platform should ingest live market data from multiple venues, maintain l...
Determine Probability of Single Ride on Following Day
Determine Probability of a Single Ride on the Following Day A pricing experiment gives each new rider two ride opportunities on day 1. For each offere...
Design a dynamic rental pricing system
System Design: ML-Driven Nightly Pricing for Short-Term Rentals Context Design a production ML system that recommends (and optionally auto-sets) night...
Implement Linear Regression Training
Implement a function train_linear_regression(X, y, lr, epochs) that trains a linear regression model from scratch using batch gradient descent. Requir...
Swap kth-from-end node with head
Given the head of a singly linked list and an integer k, swap the k-th node from the end with the head node, using O(1) extra memory. Requirements: - ...
Implement a Referral Revenue Tracker
Implement an in-memory revenue tracking system for customers in a referral network. Each customer has their own direct revenue. A customer may also ha...
Answer general fit and AI safety questions
Answer general fit and AI safety questions Behavioral and AI-Safety Interview Prompts (Software Engineer, Onsite) Context You are interviewing for a S...
Explain C++ default constructor generation rules
You are given a C++ class type T. 1. When will the compiler implicitly declare a default constructor for T? 2. When will the implicitly-declared defau...
Answer impact, conflict, and difficult coworker questions
Behavioral questions 1. Describe the most impactful project you have worked on. 2. Tell me about a difficult person you have worked with. 3. Describe ...