Day 3 of #100DaysOfCode

Today I Learned (Functions + Binary Numbers in C++)

• Revisited functions in C++: syntax, parameters, return types

• Explored local vs global scope and function overloading

• Practiced:

  • Factorial using functions
  • isPrime(int) returning true/false
  • Binomial Coefficient calculation
  • Found all primes in a range

• Dived into the Binary Number System

  • Decimal → Binary conversion
  • Binary → Decimal conversion

• Learned about data type modifiers: signed, unsigned, short, long, long long

Wrote clean code for binary ↔ decimal conversions

Takeaway

Functions simplify logic, and binary concepts strengthen core understanding.

Codes: https://github.com/GeekyProgrammer07/DSA