/in/foo.cc: In function 'int queryl(int, int, int)':
/in/foo.cc:61:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int queryr(int, int, int)':
/in/foo.cc:70:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^