Answer Posted / fazil

/* Solution 1: */

int main(int argc, char* argv[])
{
if( argc == 2 || main( 2, NULL ) )
{
printf("Hello ");
}
else
{
printf("World\n");
}
return 0;
}

/* Solution 2 (Only for Unix and Linux): */

int main(int argc, char* argv[])
{
if( !fork() )
{
printf("Hello ");
}
else
{
printf("World\n");
}
return 0;
}

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