/in/foo.cc: In function 'int big(int, int, int)':
/in/foo.cc:23:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int hd(int)':
/in/foo.cc:125:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^