Coding

GCD and LCM are foundational concepts in number theory and are widely used in areas such as simplifying fractions, cryptography, and solving Diophantine equations. GCD (Greatest Common Divisor) GCD of 12 and 18 So, the GCD is 6 Euclidean Algorithm for GCD This is an efficient method to find GCD: Code Euclidean Algorithm, Why it … Read full article: GCD and LCM: Essential Tools for Competitive Programming

Matrices are fundamental data structures in computer science and mathematics. In competitive programming, matrices are widely used in problems involving 2D grids, dynamic programming, graph algorithms, geometry, and simulations. Basics of Matrices in Python Python doesn’t have a native matrix type. A matrix is typically represented as a list of lists: Concepts Matric Representation Initialisation … Read full article: Complete Guide to Matrices

Competitive programming or sport programming is a mind sport involving participants trying to program according to provided specifications. Recursion Recursion is one of the most powerful and elegant tools in programming or even in competitive — but it can seem confusing at first. In this guide, you’ll learn what recursion is, how to identify recursive … Read full article: The Ultimate Beginner’s Guide for Competitive programming Part 1

Modulo % Example to show the modulus operator: Refer Extract Last Digit(s) of a Number Digit separation Reverse a number Decimal to binary Using Bitwise Refer Binary to Decimal Using bitwise Note: Both will work Both + and | work here because after shifting the last bit is 0, so no carry occurs. But | … Read full article: Coding Level 1

Exception Bad Practice Recommended (Good Practice) Way 1 Way 2 Catching a too general Exception is generally considered a bad practice because: Idea Doc String format

Sequential Loops vs Nested Loop Two Sequential Loops (One After Another) Nested Loop Takeway