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
Container With Most Water Full breakdown →	Medium	ArrayTwo PointersGreedy
Fraction to Recurring Decimal Full breakdown →	Medium	Hash TableMathString
Merge Intervals Full breakdown →	Medium	ArraySortingQuicksort
Minimum Path Sum Full breakdown →	Medium	ArrayDynamic ProgrammingMatrix
String Compression Full breakdown →	Medium	Two PointersString
Number of Islands Full breakdown →	Medium	ArrayDepth-First SearchBreadth-First Search
Group Anagrams Full breakdown →	Medium	ArrayHash TableString
Search in Rotated Sorted Array Full breakdown →	Medium	ArrayBinary Search
Daily Temperatures Full breakdown →	Medium	ArrayStackMonotonic Stack
Find the Winner of the Circular Game Full breakdown →	Medium	ArrayMathRecursion
LRU Cache Full breakdown →	Medium	Hash TableLinked ListDesign
Longest Substring Without Repeating Characters Full breakdown →	Medium	Hash TableStringSliding Window
Find the Winner of an Array Game Full breakdown →	Medium	ArraySimulation
Course Schedule Full breakdown →	Medium	Depth-First SearchBreadth-First SearchGraph Theory
Longest Palindromic Subsequence Full breakdown →	Medium	StringDynamic Programming
Search a 2D Matrix II Full breakdown →	Medium	ArrayBinary SearchDivide and Conquer
Sell Diminishing-Valued Colored Balls Full breakdown →	Medium	ArrayMathBinary Search
Domino and Tromino Tiling Full breakdown →	Medium	Dynamic Programming
Gas Station Full breakdown →	Medium	ArrayGreedy
Longest Palindromic Substring Full breakdown →	Medium	Two PointersStringDynamic Programming
Search a 2D Matrix Full breakdown →	Medium	ArrayBinary SearchMatrix
Longest Repeating Character Replacement Full breakdown →	Medium	Hash TableStringSliding Window
Random Pick with Weight Full breakdown →	Medium	ArrayMathBinary Search
Accounts Merge Full breakdown →	Medium	ArrayHash TableString
Rotting Oranges Full breakdown →	Medium	ArrayBreadth-First SearchMatrix
Make Lexicographically Smallest Array by Swapping Elements Full breakdown →	Medium	ArrayUnion-FindSorting
Smallest String With Swaps Full breakdown →	Medium	ArrayHash TableString

Goldman Sachs Medium Coding Interview Questions (DSA)

Goldman Sachs Medium Coding Interview Questions

Top Data Structures & Patterns — Medium

Frequently Asked Questions

Practice with a Mock Interview

Other Companies