1)The Complete Array Algorithms Roadmap: 12 Patterns from Beginner to Expert (2026 Guide)
Arrays are the “Bread and Butter” of coding. Every interview starts here. But most candidates fail not because they don’t know loop syntax, but because they use Brute Force ($O(N^2)$) instead of Pattern Logic ($O(N)$). To clear top-tier interviews, you must stop thinking about “Loops” and start thinking about “Pointers and Windows.” This guide covers … Read more