Other Interview Questions
Practice 54 real interview questions from Other. Covers Coding & Algorithms, Machine Learning, Analytics & Experimentation, Statistics & Math. For roles including Data Scientist, Software 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."
Compute total after discounting most expensive item
Problem You are given: - An array prices of length n, where prices[i] is the price of the i-th item. - An integer discountPercent (0 to 100). A promot...
Design MapReduce and Spark jobs
Big data systems: (a) Explain Hadoop’s fault tolerance (HDFS replication, task re-execution) and why MapReduce includes shuffling and sorting; in a wo...
Implement a multi-button click detector
Implement a click detector for multiple physical buttons. You receive button state updates as a stream. Each update provides: - button_id (integer) - ...
Evaluate and select K in K-means
K-means Clustering: Concepts, Initialization, Model Selection, Preprocessing, and Business Validation Context: You are clustering customer data with n...
Compare LLN and CLT with heavy tails
Explain the Law of Large Numbers vs the Central Limit Theorem, including their assumptions and convergence guarantees. Construct a concrete counterexa...
Translate goals into robust product metrics
Analytics & Experimentation: Metric Design and Validation Context You are a Data Scientist working on analytics and experimentation. You are given bus...
Find and fix metric drops systematically
Investigating a YoY Drop in Weekly Average Likes per User Context You are a Data Scientist evaluating a social app where the weekly average likes per ...
Find two numbers that sum to target
Problem You are given an integer array nums (length n) and an integer target. Return the indices (i, j) such that: - i != j - nums[i] + nums[j] == tar...
Separate demand from supply for jeans
Scenario You are a Data Scientist at a multi-category marketplace. The Jeans category is underperforming. You must diagnose whether the primary bottle...
Design an A/B test for a Celebrate reaction
Experiment Design: Adding a "Celebrate" Reaction to WeChat Moments Context WeChat Moments is a friend-based social feed with posting, viewing, and rea...
Decide goal under ambiguity
Choose the Primary Goal for a New Subscriber-Only Benefit You are the PM/data lead for a subscription product planning a new subscriber-only benefit. ...
Return the k-th row of Pascal-like triangle
Problem Given an integer rowIndex (0-indexed), return the rowIndex-th row of Pascal’s triangle. Pascal’s triangle is defined as: - Row 0 is [1] - Each...
Solve window-function SQL without joins
You must use only window functions (no JOINs). CTEs are allowed. Given the schemas and tiny samples below, write SQL for each sub-question and explain...
Explain motivations, customer ownership, mentoring, and culture fit
1) Why are you leaving your current company? Answer in <90 seconds, avoid negativity, and tie your reason to specific growth you seek (e.g., owning an...
Diagnose and fix linear regression violations
Given a linear model y = Xβ + ε on 10,000 observations: (a) State all Gauss–Markov assumptions and which are needed for BLUE vs inference. (b) Show wh...
Write SQL to analyze response accuracy and speed
You are given response-level data for an online assessment with sections verbal/design/analytics and verbal subtypes grammar/vocab/tense/other. Using ...
Design and power an A/B on question mix
Experiment Design: Replacing 10% "Other" Verbal With Grammar in a 15-Min, 19-Question Section You need to test whether replacing the 10% "other" verba...
Prove reservoir sampling correctness
Design an algorithm to sample k items uniformly at random from a stream of unknown and potentially massive length N, using O(k) memory and one pass. (...
Extract companies from noisy text
Extracting Company Names from Noisy Resumes and Web Snippets Context You receive messy resume text (PDF-to-text/OCR, varying casing) and scraped web s...
Predict job changes month by month
Predict Monthly Job-Change Risk (Discrete-Time Survival Setup) Context You are building a monthly model to predict the probability that a LinkedIn mem...