C Hello World program without using a semicolon
codeaft.c
#include <stdio.h>
int main()
{
    if (printf("Hello, World!\n"))
    {
    }

    while (!printf("Hello, World!\n"))
    {
    }

    switch (printf("Hello, World!\n"))
    {
    }
}
Output
codeaft@codeaft:~$ gcc codeaft.c
codeaft@codeaft:~$ ./a.out
Hello, World!
Hello, World!
Hello, World!
codeaft@codeaft:~$
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