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."
Design a User Behavior Tracking (Clickstream Analytics) System
This question asks for the design of an end-to-end user behavior tracking (clickstream analytics) system, covering event collection, transport, proces...
Design an In-Memory Transactional Key-Value Store
Design an in-memory key-value database that supports transactional reads and writes. Expose a class with these operations: - begin() starts a transact...
Design a Durable Task Scheduling Service
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Implement Multi-Player Tic-Tac-Toe
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Match Limit Orders with Price-Time Priority
Implement an in-memory limit-order matcher that processes orders in arrival order and returns both the executed trades and the final resting order boo...
Design an Entitlement-Aware Agentic Portfolio Workflow
Design an Entitlement-Aware Agentic Portfolio Workflow Design an agentic workflow that accepts a portfolio-related request, obtains only the data the ...
Find a Distributed Mode Efficiently
Find a Distributed Mode Efficiently A large multiset is partitioned across ten workers. Find the value with the highest total frequency across all wor...
Build a Three-Service Refund Workflow over HTTP
Build a Three-Service Refund Workflow over HTTP For this exercise, build three independently running local services: - Order Service owns order data a...
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Sort Every Concentric Matrix Border Clockwise
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Calculate Ordered Job Makespan Across Parallel Workers
Calculate Ordered Job Makespan Across Parallel Workers A single stage has jobs with different durations and a fixed number of identical workers. Jobs ...
Count Connected Clusters of Two-Dimensional Points
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Evaluate Courier-Selected Delivery Distance Limits
Evaluate Courier-Selected Delivery Distance Limits A delivery marketplace is considering allowing each courier to set a maximum distance for delivery ...
Convert Leveled Rich-Text Tokens into Nested Lists
Convert Leveled Rich-Text Tokens into Nested Lists Problem Implement read_rich_text(tokens). Each token is a pair (level, text) in document order, whe...
Index a CSV Movie Catalog for Fast Year-Range Queries
Index a CSV Movie Catalog for Fast Year-Range Queries Design a class that loads a CSV movie catalog once and then answers frequent year-range filters ...
Design an Embeddable Pay by Bank Widget
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Reason About Rate Limiting Under Memory and Throughput Pressure
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Explain Your AI Safety Values
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Design a Durable Concurrent Event Writer
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