cProgLang/%2525252525252525252525252525252525253fshowmsg%2525252525252525252525252525252525253d1%2525252525252525253fshowmsg%2525252525252525253d1%25252525253fshowmsg%25252525253d1?h=master, branch masterMy attempt at the exercises from 'The C Programming Language' book