First Code in CPP

 Lets Write our First Program here,

#include<iostream>

using namespace std;

int main(){

cout<<"Namastey!"<<endl;

return 0;}

Explanation!

let’s break it down step by step:

#include<iostream>

This line includes the input-output stream library in C++. It’s necessary for using cin, cout, and other standard I/O functions.

using namespace std;

This lets you use elements from the std (standard) namespace directly. Without this, you’d have to write std::cout instead of just cout.

int main(){

The main function is the entry point of every C++ program. Execution starts here.

cout << "Namastey!";

cout is used to print output to the console. The << operator sends the string "Namastey!" to the output stream.

Don’t forget the semicolon ; — it marks the end of the statement.

return 0;

This tells the system that the program executed successfully. Returning 0 usually means everything went fine.

Now, to compile and run this code using g++ (GNU C++ compiler):

Open your terminal.

Navigate to the folder where your fun.cpp file is located.

Compile it using the command:

g++ fun.cpp -o fun

This tells g++ to compile fun.cpp and create an executable named fun.

Run the compiled program: