cProgLang/%25252525252525252525252525253fshowmsg%25252525252525252525252525253d1%252525253fid%252525253d65def0aa82e45a2963d649624dbf93d42c7a3dc8%25253fshowmsg%25253d1?h=master, branch masterMy attempt at the exercises from 'The C Programming Language' book