Question 1

What is InterviewSkool?

Accepted Answer

InterviewSkool is an AI-powered mock interview platform that simulates real FAANG-style coding and system design interviews. An AI interviewer named Alex walks you through every stage: problem clarification, approach design, complexity analysis, coding, and hidden test suite evaluation for coding; requirements, architecture, and deep dives on a whiteboard for system design, and issues a hiring signal at the end.

Question 2

Does InterviewSkool support system design interviews?

Accepted Answer

Yes. Pick a problem (or go random) and a level: SDE-2, SDE-3, or Staff Engineer. You design on an interactive whiteboard while talking through requirements, architecture, and deep dives with Alex, and get a 0–100 score with per-parameter feedback and level readiness.

Question 3

How does the AI interviewer work?

Accepted Answer

Alex is an AI interviewer. It asks probing clarifying questions, validates your approach, challenges your complexity analysis, observes your code against hidden test cases in real time, and adapts its follow-up questions based on your answers, just like a real FAANG engineer would.

Question 4

Which companies does InterviewSkool prepare you for?

Accepted Answer

InterviewSkool currently supports Google, Meta, Amazon, Apple, Microsoft, and many more companies. Problems are sourced from real interviews at those companies and calibrated to the difficulty bar for SDE-1, SDE-2, and SDE-3+ levels.

Question 5

What programming languages can I use?

Accepted Answer

You can code in JavaScript, Python, Java, C++, or TypeScript. Pick the language you are most comfortable with.

Question 6

How is InterviewSkool different from LeetCode?

Accepted Answer

LeetCode is a problem bank, you solve problems alone and get a pass/fail. InterviewSkool simulates the actual interview conversation: Alex asks questions, challenges your reasoning, and evaluates how you communicate, not just whether your code passes. You get a hiring signal and 12-dimension feedback, not just test results.

Question 7

What is a hiring signal?

Accepted Answer

A hiring signal is the recommendation a real interviewer would make after your session: Strong Yes, Yes, Lean Yes, or No. InterviewSkool computes yours from 12 dimensions including code correctness, communication, DSA knowledge, and optimization mindset.

Question 8

How much does InterviewSkool cost?

Accepted Answer

InterviewSkool offers paid plans. Sign in with Google to see current pricing and get started.

Question 9

Is it Interview School or InterviewSkool?

Accepted Answer

InterviewSkool (one word, no space) is a distinct AI-powered mock interview platform at interviewskool.com. People sometimes search for it as 'Interview Skool' (two words), that's the same platform. InterviewSkool is NOT Interview School (interviews.school), which is a different career platform. InterviewSkool focuses on coding execution and technical system design with real-time voice AI.

Problem	Difficulty	Tags
Longest Substring Without Repeating Characters Full breakdown →	Medium	Hash TableStringSliding Window
Number of Divisible Triplet Sums Full breakdown →	Medium	ArrayHash Table
Longest Palindromic Substring Full breakdown →	Medium	Two PointersStringDynamic Programming
Divide Players Into Teams of Equal Skill Full breakdown →	Medium	ArrayHash TableTwo Pointers
Merge Intervals Full breakdown →	Medium	ArraySortingQuicksort
Palindrome Partitioning Full breakdown →	Medium	StringDynamic ProgrammingBacktracking
Maximum OR Full breakdown →	Medium	ArrayGreedyBit Manipulation
Beautiful Arrangement Full breakdown →	Medium	ArrayDynamic ProgrammingBacktracking
Minimum Number of Swaps to Make the String Balanced Full breakdown →	Medium	Two PointersStringStack
Exclusive Time of Functions Full breakdown →	Medium	ArrayStack
Minimize Maximum of Array Full breakdown →	Medium	ArrayBinary SearchDynamic Programming
Number of Islands Full breakdown →	Medium	ArrayDepth-First SearchBreadth-First Search
Count Ways To Build Good Strings Full breakdown →	Medium	Dynamic Programming
Subarray Sum Equals K Full breakdown →	Medium	ArrayHash TablePrefix Sum
Top K Frequent Elements Full breakdown →	Medium	ArrayHash TableDivide and Conquer
Group Anagrams Full breakdown →	Medium	ArrayHash TableString
Using a Robot to Print the Lexicographically Smallest String Full breakdown →	Medium	Hash TableStringStack
Minimum Cost to Move Between Indices Full breakdown →	Medium	ArrayGreedyPrefix Sum
Longest Common Subsequence Full breakdown →	Medium	StringDynamic ProgrammingLongest Common Subsequence
Asteroid Collision Full breakdown →	Medium	ArrayStackSimulation

Visa Medium Coding Interview Questions (DSA)

Visa Medium Coding Interview Questions

Top Data Structures & Patterns — Medium

Frequently Asked Questions

Practice with a Mock Interview

Other Companies