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."
Solve Multiple Coding Interview Problems
The interview included the following independent coding tasks. Solve each task, explain edge cases, and analyze time and space complexity. 1. Minimum ...
Find Earliest Column With One
You are given access to a binary matrix through an API rather than direct storage. The matrix has m rows and n columns. Each row is sorted in nondecre...
Solve a Key-Door Corridor Maze
AI-assisted coding round. You may use an AI coding assistant, but you are responsible for debugging the implementation and validating the test cases. ...
Build a Searchable Sentence Index
Design and implement an in-memory data structure for a collection of sentences. Each sentence has a unique integer id and a text body. Support the fol...
Expand Nested Repetition Expressions
Implement a function that expands a valid encoded string containing nested parenthesized repetition expressions. Rules: - Ordinary characters are appe...
Implement Store Autocomplete
You are given a list of store names, for example: `text ["McDonald's", "KFC", "Burger king", "Bites", "Biscuit shop"] ` Implement an autoComplete(s) m...
Simulate a Rank-Based Tournament
You are given an array ranks, where ranks[i] is the rank of player i in the initial bracket order. A smaller rank value means a stronger player. The t...
Solve Two Algorithm Challenges
Solve the following independent algorithm problems. Problem 1: Maximize three non-overlapping variable-length subarrays You are given an integer array...
Write SQL Data Transformation Queries
Use SQL to solve the following data transformation tasks. Assume standard SQL features are available, including window functions and recursive common ...
Simulate In-Place Cellular State Updates
You are given an m x n grid of cells, where each cell is either 0 for inactive or 1 for active. All cells update simultaneously according to these rul...
Implement Stable Softmax
Implement a function that computes the normalized exponential values of a list of real numbers. Given an array x of length n, return an array p of len...
Implement EMA Crossovers and Root Solvers
Solve the following coding and algorithmic problem-solving tasks. Task 1: Compute exponential moving average crossovers You are given a pandas DataFra...
Evaluate an Arithmetic Expression
Implement an expression evaluator for a simplified calculator. Given a string s, return the integer value of the expression. The expression may contai...
Compute ad impression conversion rates
You are given two tables for an ads product. Table: ad_impressions | Column | Type | Description | |---|---:|---| | impression_id | STRING | Unique id...
Determine Whether Courses Can Be Completed
You are given an integer numCourses, representing courses labeled from 0 to numCourses - 1, and a list prerequisites. Each prerequisite is a pair [cou...
Solve Array Merge and Parentheses Cleanup
You are asked to solve two coding problems. Problem 1: Merge Three Sorted Arrays Given three integer arrays, each sorted in nondecreasing order, merge...
Solve Decimal Coin Change
Given a list of coin denominations represented as decimal values and a target amount represented as a decimal value, return the minimum number of coin...
Compute Jaccard Similarity for Lists
Implement a Python function to compute the Jaccard similarity between two lists of strings. `python def jaccard_similarity(a: list[str], b: list[str])...
Implement Cache, Undo, and DFS
Answer the following independent coding prompts. 1. Timed cache: Implement a generic in-memory cache. Each inserted item has a fixed expiration time k...
Find Earliest Full Connectivity Timestamp
You are given: - A list of all user IDs in a ride-sharing system. - A chronological text log of ride-sharing events. Each relevant event contains a ti...