Meta + Google + TikTok + Amazon 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."
Detect and Reduce Spammy Friend Requests Effectively
Detect and Reduce Spammy Friend Requests Effectively Detecting Spammy Friend Requests Context Assume a consumer social platform where users can send f...
Determine User Demand for New Video-Calling Feature
Determine User Demand for New Video-Calling Feature Analytics Design: Demand Sizing, Evaluation Metrics, and Trade-offs for a New Video-Calling Featur...
Design a scalable image-based social network
This question evaluates a candidate's ability to design large-scale backend architectures, covering distributed systems, storage and media handling, c...
Design an Instagram-like auction platform
This question evaluates expertise in large-scale system design, including distributed systems, data modeling, real-time messaging, consistency models,...
Implement zigzag level-order traversal
Given the root of a binary tree, return the node values in zigzag level order: visit nodes level by level, reading the first level from left to right,...
Check carpool trip feasibility
You are given a list of trips where each trip i is (passengers_i, start_i, end_i) with start_i < end_i on a one-dimensional route. A single vehicle wi...
Solve two string DP/hash problems
Solve the following two coding questions. 1) Unique Morse Code Transformations You are given an array of strings words (lowercase English letters). Us...
Handle feedback and priority conflicts
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Describe a recent project you led
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Min boards to cover roof holes
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Solve four OA string/array/matrix/graph tasks
This multi-part prompt evaluates proficiency in core programming competencies: string parsing and character classification, simulation/greedy processi...
Extend BFS maze solver with keys and arrows
This question evaluates mastery of breadth-first search, state-space modeling for grid-based traversal, and handling augmented states like keys and on...
Compute minimum servers for cyclic tasks
This question evaluates understanding of interval scheduling, overlap detection, and handling cyclic time via modular arithmetic for tasks that wrap p...
Find cheapest common ancestor in a tree
This question evaluates understanding of tree data structures and ancestor concepts (such as lowest common ancestor) along with algorithmic skills for...
Check pivot after removing one element
This question evaluates array-manipulation skills, cumulative-sum/prefix-sum reasoning, and robustness in handling negative values and duplicates, tes...
Build a next-word frequency predictor
This question evaluates understanding of data structures and algorithms for frequency counting and associative lookups, including preprocessing-versus...
Maximize sum with no adjacent elements
Given an array of non-negative integers nums, choose a subset of elements such that no two chosen elements are adjacent in the original array. Return ...
Compute city skyline silhouette
Compute city skyline silhouette Compute the outer silhouette of a 2D skyline. You are given n axis-aligned rectangular buildings; each building i is (...
How would you manage precision/recall for fraud detection?
This question evaluates a candidate's competency in applied machine learning for fraud detection, covering model performance measurement, thresholding...
Solve increasing sequence and path problems
Solve increasing sequence and path problems Answer the following related tasks about increasing sequences and paths: a) Contiguous subarray: Given an ...