/in/foo.cc: In function 'int main()':
/in/foo.cc:37:30: warning: unused variable 'dis' [-Wunused-variable]
   double less = 0, more = 0, dis = 0;
                              ^~~
/in/foo.cc: At global scope:
/in/foo.cc:67:1: error: expected declaration before '}' token
 }
 ^