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	Companies	Breakdown / Solution
Rotting Oranges	Medium	6 companies	View breakdown →
Number of Islands	Medium	5 companies	View breakdown →
Word Search	Medium	4 companies	View breakdown →
Spiral Matrix	Medium	4 companies	View breakdown →
Find the Width of Columns of a Grid	Easy	1 companies	View breakdown →
Shortest Path in a Binary Matrix	Medium	1 companies	View breakdown →
Rotate Image	Medium	2 companies	View breakdown →
Design Spreadsheet	Medium	2 companies	View breakdown →
Construct Quad Tree	Medium	1 companies	View breakdown →
Design Tic-Tac-Toe	Medium	1 companies	View breakdown →
Game of Life	MEDIUM	1 companies	View breakdown →
Find the Safest Path in a Grid	MEDIUM	1 companies	View breakdown →
Largest Local Values in a Matrix	EASY	1 companies	View breakdown →
Making A Large Island	HARD	1 companies	View breakdown →
Search a 2D Matrix	MEDIUM	1 companies	View breakdown →
Set Matrix Zeroes	MEDIUM	1 companies	View breakdown →
Valid Sudoku	Medium	1 companies	View breakdown →
Last Day Where You Can Still Cross	HARD	1 companies	View breakdown →
Leftmost Column with at Least a One	MEDIUM	1 companies	View breakdown →
Shortest Path in a Grid with Obstacles Elimination	Hard	1 companies	View breakdown →
Unique Paths III	HARD	1 companies	View breakdown →
Word Search II	Hard	5 companies	View breakdown →

Matrix Interview Questions

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