hello world in c/++

#include <iostream>

int main() {
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

Explanation:

• #include <iostream>: This line includes the input-output stream header file (iostream) in the program. This file allows input and output operations to be performed in C++.

• int main() { }: This is the main function of the C++ program. Execution of the program begins from here. int indicates that the function will return an integer value. { } denotes the body of the function, where the code is written.

• std::cout << "Hello, World!" << std::endl;: This line prints "Hello, World!" to the console. std::cout refers to the standard output stream. The << operator is used to insert the string "Hello, World!" into the output stream. std::endl is used to insert a new line after printing.

• return 0;: This line signifies the end of the main function. It returns an integer value 0 to the operating system, indicating successful program execution.