Wrong Answer
/in/foo.cc: In function 'bool cmp(node, node)': /in/foo.cc:13:1: warning: control reaches end of non-void function [-Wreturn-type] } ^
/in/foo.cc: In function 'bool cmp(node, node)': /in/foo.cc:13:1: warning: control reaches end of non-void function [-Wreturn-type] } ^