Snowflake Interview Questions
Practice the exact questions companies are asking right now.
"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 topological sort and tree boundary traversal
You are given two separate coding tasks. Problem A — Order courses with prerequisites You have n courses labeled 0..n-1 and a list of prerequisite pai...
Solve three coding rounds
You are given three independent interview-style coding tasks. 1) Nearest cake/person in a 2D grid You are given an m x n grid of integers: - 1 = cake ...
Design a disk-backed KV store under contention
System Design Design a key–value store where: - Values can be very large, so they must be stored primarily on disk. - The interviewer is especially fo...
Minimize coins with overpay and change
You have an unlimited number of coins with denominations: - 1, 5, 10, 50, 100, 200 You need to pay exactly n units to another person. You are allowed ...
Solve scheduling and tree path problems
You are given three separate coding problems (asked across two rounds). For each, write a function that returns the required output. Problem 1: Max cr...
Schedule prerequisite classes with retakes
Problem You are building a course-taking engine. Each course is represented as an object: - id (unique identifier) - prevCoursesList: a list of prereq...
Compute effective permissions on DAG and prune tree
Problem A — Effective allow/disallow letters on a DAG You are given a directed acyclic graph (DAG) with n nodes labeled 0..n-1. Each node u contains t...
Design transactional in-memory key-value store
Problem Design and implement an in-memory key–value store that supports basic operations plus transactions. Core API Implement the following operation...
Implement an in-memory file system
Implement an in-memory file system supporting basic directory and file operations. You must support the following methods (names are illustrative; any...
Design an ACL authorization checking service
Design a centralized authorization (ACL) checking service used by other internal services to decide whether a principal can perform an action on a res...
Design an object store with deduplication
System Design Prompt Design a simplified cloud object storage service (similar to an object store) that allows users to upload and download files. The...
Compute total time to finish all courses
Problem You are given n courses labeled 1..n. Each course i takes time[i] units of time to complete. You are also given prerequisite relations prereqs...
Solve four OA algorithm problems
You are given four independent coding questions. 1) Count square subgrids (multiple queries) For each query, you are given two integers R and C repres...
Implement course scheduling and rate limiter analysis
You are given two independent coding problems. --- Problem 1: Course Scheduling You are planning to take a set of courses and are given prerequisite r...
Validate an extended tic-tac-toe state
Problem You are given a 3×3 tic-tac-toe board state as an array of 3 strings, each of length 3. Each cell is one of: - 'X' (player X) - 'O' (player O)...
Maximize revenue by choosing one query type
You are given a virtual warehouse that can execute queries. There are n query types, and you must choose exactly one query type to run repeatedly for ...
Design a multi-tenant quota system
Design a Global Multi-Tenant Quota Service (Single Global Quota per User) Context Multiple upstream products (e.g., Drive, Photos) share a single glob...
Answer conflict, tight deadline, and mentorship prompts
Behavioral Interview Prompts Answer the following with specific examples from your experience: 1. Conflict: Tell me about a time you had a conflict wi...
Check if each recipe is a contiguous subsequence
You are given: - An ordered ingredient list ingredients[0..n-1]. - A list of m recipes. Each recipe recipes[j] is itself a list of ingredients and is ...
Design a distributed tree node counter
Distributed Tree Node Count with Two Messages You are given an N-ary tree of machines (one process per node). Each node knows its parent (if any) and ...