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
3Sum Full breakdown →	Medium	ArrayTwo PointersSorting
Add Two Numbers Full breakdown →	Medium	Linked ListMathRecursion
Longest Consecutive Sequence Full breakdown →	Medium	ArrayHash TableUnion-Find
Longest Palindromic Substring Full breakdown →	Medium	Two PointersStringDynamic Programming
Search in Rotated Sorted Array Full breakdown →	Medium	ArrayBinary Search
Reverse Integer	Medium	Math
Group Anagrams Full breakdown →	Medium	ArrayHash TableString
Subarray Sum Equals K Full breakdown →	Medium	ArrayHash TablePrefix Sum
Generate Parentheses	Medium	StringDynamic ProgrammingBacktracking
Coin Change Full breakdown →	Medium	ArrayDynamic ProgrammingBreadth-First Search
Container With Most Water Full breakdown →	Medium	ArrayTwo PointersGreedy
Letter Combinations of a Phone Number	Medium	Hash TableStringBacktracking
3Sum Closest	Medium	ArrayTwo PointersSorting
Rotate Array	Medium	ArrayMathTwo Pointers
House Robber Full breakdown →	Medium	ArrayDynamic Programming
Jump Game II	Medium	ArrayDynamic ProgrammingGreedy
Product of Array Except Self Full breakdown →	Medium	ArrayPrefix Sum
Sort an Array	Medium	ArrayDivide and ConquerSorting
Two Sum II - Input Array Is Sorted	Medium	ArrayTwo PointersBinary Search

Google Medium Coding Interview Questions (DSA)

Google Medium Coding Interview Questions

Top Data Structures & Patterns — Medium

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