/in/foo.cc: In function 'int main()':
/in/foo.cc:117:13: warning: variable 'y' set but not used [-Wunused-but-set-variable]
       int x,y;
             ^
/in/foo.cc: In function 'int joker(int, int, int, int, int)':
/in/foo.cc:58:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^