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."
Implement LRU cache and copy random list
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Write SQL for Pixel Signal Metrics
You are working on Meta Ads Pixel analytics. Assume all timestamps are stored in UTC, and analyze the last 30 complete calendar days. Tables 1. advert...
Design coding platform with global leaderboard
This question evaluates proficiency in scalable distributed systems and system design, including real-time ranking algorithms, data modeling, API desi...
Compute unmatched parentheses length
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Compute dot product of sparse vectors
This question evaluates proficiency with sparse data representations and algorithmic efficiency by requiring the dot product to be computed from lists...
Evaluate new shop-ads ranking algorithm
This question evaluates a data scientist's skills in online experimentation, causal inference, and marketplace analytics—covering A/B test design, ran...
Maximize watched duration under consecutive-sum limit
You have a list of videos in a feed. Video i has duration d[i] (positive integer). A user has an “attention span” limit A. You want to select a subset...
Write SQL for call analytics
You are given two tables. Table: calls - call_id BIGINT - sender_id BIGINT - receiver_id BIGINT - call_ts TIMESTAMP — stored in UTC - pickup CHAR(1) —...
Find conflicting pair using black-box run()
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Implement Memory-Efficient Document Undo/Redo
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Find top/bottom-k words in list or stream
You are given words (strings) either as a finite list or as an unbounded stream. 1) List version: Given an array words and an integer k, return: - the...
Design compressed vector and compute dot product
This question evaluates understanding of data structure design, sequence compression concepts (such as run-length patterns), and numeric algorithm eff...
Reconstruct a binary tree from traversals
This question evaluates understanding of binary tree traversal properties, data structure manipulation, and algorithmic complexity involved in reconst...
Find longest substring with ≥k repeats
This question evaluates proficiency with string-processing techniques and character frequency analysis, focusing on algorithmic skills in the Coding &...
Maximize sum without choosing adjacent elements
This question evaluates a candidate's understanding of array-based optimization and dynamic programming concepts for computing a maximum sum under non...
Minimize travel time with optional meeting point
This question evaluates a candidate's understanding of graph shortest-path computation and meeting-point optimization, testing skills in handling weig...
Count three-digit numbers with distinct digits
This question evaluates a candidate's understanding of digit manipulation, basic combinatorics, and implementation of value-range constraints in codin...
Design a logger that returns top-K messages
This question evaluates skills in designing in-memory data structures and algorithms for frequency counting and interval querying, including extractin...
Solve grid shortest-path and tree DP
This question pair evaluates proficiency in fundamental algorithmic techniques: finding shortest paths in a grid via breadth-first search and applying...
Design a rolling hit counter API
This question evaluates proficiency with data structures for time-window aggregation and understanding of time/space trade-offs when counting events w...