PGoCareerGoCareer prep tools
LoginSign up
  • Java
  • Python
  • AI
  • React
  • Angular
  • PHP
  • Node.js
  • SQL
  • DSA
  • HTML
  • CSS
  • JS
  • Spring
  • ML
  • MongoDB

DSA · Theory

Maximum area rectangle created by selecting four sides from an array

← All stacks

Theory

211/810

Maximum area rectangle created by selecting four sides from an array

Maximum area rectangle created by selecting four sides from an array is a DSA topic. In plain words you use it for a short Maximum area rectangle created by selecting four sides from an array example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Maximum area rectangle created by selecting four sides from an array example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Maximum area rectangle created by selecting four sides from an array.

From the example next to this theory: Maximum area rectangle created by selecting four sides from an array — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Maximum area rectangle created by selecting four sides from an array” with no example. Fix that before you talk about advanced DSA.

Viva: what is Maximum area rectangle created by selecting four sides from an array? Then show the smallest Maximum area rectangle created by selecting four sides from an array example you can type. Then name the trap.

Diagram
  index →  0    1    2
  array → [10,  20,  30]
Exam tip

What is Maximum area rectangle created by selecting four sides from an array? Show this: the smallest Maximum area rectangle created by selecting four sides from an array example you can type. Trap: only saying “Maximum area rectangle created by selecting four sides from an array” with no example.

Example

arr = [10, 20, 30, 40]
print(arr[2], arr[-1])
matrix = [[1, 2], [3, 4]]
print(matrix[1][0])  # 3

Maximum area rectangle created by selecting four sides from an array — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

  • DefMaximum area rectangle created by selecting four sides from an array — a short Maximum area rectangle created by selecting four sides from an array example in a short dry-run on paper.
  • Rulethe smallest Maximum area rectangle created by selecting four sides from an array example you can type
  • Traponly saying “Maximum area rectangle created by selecting four sides from an array” with no example
  • Usea short dry-run on paper

Questions

1

What is Maximum area rectangle created by selecting four sides from an array?

2

Give one small example of Maximum area rectangle created by selecting four sides from an array.

3

What mistake do beginners make with Maximum area rectangle created by selecting four sides from an array?

4

Where do you use Maximum area rectangle created by selecting four sides from an array?

211 / 810

P

GoCareerGo

Utilities · Preparation Hub · Resume · CV · Tools — one workspace.

Workspace

DashboardProfilePreparation HubResume builderCV builderCareer planning

PDF Tools

Merge PDFSplit PDFCompress PDFImage to PDFAll toolsJobs

Image & QR

Compress ImageResize ImageQR ScannerQR GeneratorBlogIT interview prep

Company

FAQFeedbackContactPrivacyTermsSitemap

© 2026 GoCareerGo. Keep moving forward.