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Strings

• 21 Jul, 2025
• • Patterns

Two Pointers Algorithm – Intuition & Patterns

Understand the two pointers technique and how it simplifies array and string problems by reducing nested loops. Learn key patterns, types of pointer movement, and when to apply this strategy effectively.

• 20 Jul, 2025
• • Basics

Lists, Arrays & Strings: Big‑O Overview

Understand Python lists and strings through the lens of Big‑O analysis. Learn the difference between static and dynamic arrays, explore time and space complexity for key operations, and use practical cheat sheets to master list and string behaviors.