print hello world on c++
/*These are comments. They are used to assist the programmer.
They do not affect the program in any way.
Write whatever you want*/
#include <iostream> //preprocessor directive (use input/output)
using namespace std; //use standard definitions
//This is the "main" function. C++ will start executing code here
int main(){ //bracket signals the start of the main function
cout << "Hello, world!" << endl; //display with a new line
//main must return an integer. 0 means success, else fail
return 0;
} //end of the main function