/in/foo.cc: In function 'int splay(int, int&)':
/in/foo.cc:37:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int find(int, double)':
/in/foo.cc:88:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^