Maths for DSA – Part 1 | Count Digits | Number System Basics скачать в хорошем качестве

Maths for DSA – Part 1 | Count Digits | Number System Basics

Lecture Resources https://github.com/Tiwarishashwat/Jav... In this lecture, we begin Maths for DSA – Part 1, where we cover number system basics that are extremely important for DSA problems and coding interviews. Many beginners struggle with math-based logic in DSA — this lecture focuses on clear understanding + practical implementation. Topics covered in this video: Why Maths is important for DSA Number system basics for problem solving How to count digits in a number Counting digits using logarithmic formula Handling special cases: Positive numbers Zero Negative numbers Time complexity analysis of digit-count logic Clean and interview-ready Java implementation This lecture will help you build strong mathematical intuition, which is required for: Arrays & Strings problems Recursion Binary Search Competitive programming This video is part of my Java + DSA course by ShashCode, designed for: DSA beginners College students Placement & interview preparation Strong problem-solving foundations 👉 Watch till the end to avoid common mistakes in digit-based problems. 0:00 - Introduction 0:15 - find the number of digits using log formula 1:00 - find the number of digits using modulo and division 2:52 - find digits code 8:59 - appending digits 13:57 - insert digit at front 19:40 - reverse a number 25:57 - odd or even numbers 28:02 - find power 33:25 - Fast Exponentiation 42:31 - Number System 45:27 - Any base to decimal 57:19 - Decimal to any base 1:04:03 - Outro