C++ Programming Tutorial

Hello World in C++

This minimal program includes the I/O header, defines `main`, and prints a line. `std::cout` writes to the console; `std::endl` flushes the output and ends the line.

#include \n\nint main() {\n    std::cout << "Hello World" << std::endl;\n    return 0;\n}

Notes

• Every C++ program starts at `int main()`.
• Use `std::` prefix to access standard library names.
• Prefer `std::cout` over C functions like `printf` for type safety.