How can I redirect the output of a C program from /dev/tty to /dev/null?

Consider this sample C program which writes to /dev/tty and doesn't have command line options to make it not do so.

#include 

int main (void) {
    FILE* fout = fopen("/dev/tty", "w");
    fprintf(fout, "Hello, World!\n");
    fclose(fout);
}

How could I redirect the output of it to /dev/null in a shell script? P.S. I read [this answer](https://unix.stackexchange.com/questions/597137/how-to-redirect-output-from-dev-tty-to-dev-null) , but I didn't understand much. In any case, I'm expecting an answer that doesn't modify the code source of the program.