In this program we've broken up the complex operation of saying "Hello World" into two steps:

1. Giving the greeting
2. Identifying the scope of the greeting

But this program is simpler than expected. What's happening?

#include <stdio.h>
int main()
{
    /* Do the greeting
    printf("Hello ");
    /* Now identify who we are greeting */
    printf("World\n");
    return (0);
}

Source code

Hint 1: It looks like there are two std::cout statements in this program. There are not.

Hint 2: It looks like there are two comments in this program. There are not.

Hint 3: There is only one comment in the program and it's much longer than expected.

Hint 4: There's a reason we used /* ... */ comments in this program.

Hint 5: The compiler complains about seeing a /* in a comment.

Hint 6: There's a reason we used /* ... */ comments comment in this program.

Answer: The first comment is not closed. As a result we have one big comment in the middle of the program which engulfs the print line that follows.

#include <stdio.h>
int main()
{
    /* Do the greeting
    printf("Hello ");
    /* Now identify who we are greeting */
    printf("World\n");
    return (0);
}

Main gallery