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."
Infer an Unknown Alphabet Order
You are given a list of words that is already sorted according to an unknown alphabet. Derive one valid ordering of the characters in that alphabet. R...
Solve Two Coding Interview Problems
You are asked to solve two independent coding problems. Problem 1: Evaluate Nested Math Expressions Implement a function that evaluates a string expre...
Implement a Streaming VMStat Alert
This question evaluates streaming data processing skills, sliding-window counting algorithms, and efficient online state management for metric monitor...
Calculate Circular Route Query Distance
You are given a circular route with n stops numbered 0 to n - 1. The array distances has length n, where distances[i] is the clockwise distance from s...
Find Earliest Fully Connected Time
This question evaluates a candidate's understanding of dynamic graph connectivity, time-ordered event processing, and state maintenance in graphs, inc...
Implement an Expiring Record Store
Implement a level-based in-memory record store. The store contains records identified by a string key. Each record contains fields, where each field i...
Implement fast power and k-palindrome
This question evaluates numerical algorithm design and string algorithm skills, focusing on efficient exponentiation with negative exponents and deter...
Can board states be transformed?
This question evaluates reasoning about constrained piece movement, string transformation, and invariant-based correctness in the Coding & Algorithms ...
Check Digits and Combine Ranges
You are asked to solve two independent coding tasks. Task 1: Check Whether an Integer Reads the Same Backward Given an integer x, return true if its d...
Write SQL for call metrics
This question evaluates a candidate's competency in SQL-based data manipulation and analytics, specifically aggregations, JOINs across relational tabl...
Find Maximum Envelope Nesting
This question evaluates algorithmic problem-solving skills, particularly reasoning about multi-dimensional ordering, sequence optimization, and time-c...
Maximize Unique Characters from Words
You are given a list of lowercase English words. Select a subset of the words such that no character appears more than once across all selected words....
Write SQL for multi-account metrics
This question evaluates proficiency in SQL for multi-table aggregation, grouping, joins, and conditional counting within a user-account-notification s...
Count Recent High-Volume Call Users
This question evaluates SQL data manipulation and analytical querying skills, including time-window filtering, joins between user and call tables, rol...
Check if all substrings are anagrams of words
You are given a string s (letters only) and access to an English dictionary dict (a set of valid words). Return true if every contiguous substring of ...
Return dictionary words matching a prefix
You are given a list of strings words (a dictionary) and a string prefix. Return all words in words that start with prefix. Clarifications/constraints...
Maximum Length of a Word Selection With All Unique Characters
You are given an array of lowercase strings words. Select a subset of these words (zero or more, chosen in any order) and concatenate them. The select...
Write SQL for reply-based recipient metrics
You work on a social product and are given two tables. Assumptions (use these unless you state otherwise): - All timestamps are in UTC. - A “reply” is...
Solve several coding interview problems
This set of problems evaluates proficiency in string processing and combinatorial parsing, arbitrary-precision arithmetic using string representations...
Compute High-Call Usage Rates
You are given two tables for a voice-calling product: users - user_id BIGINT - country_code STRING calls - call_id BIGINT - caller_id BIGINT - recipie...