/in/foo.cc:4:27: error: stray '\350' in program
 bool cmp(int a,int b){sort规则
                           ^
/in/foo.cc:4:28: error: stray '\247' in program
 bool cmp(int a,int b){sort规则
                            ^
/in/foo.cc:4:29: error: stray '\204' in program
 bool cmp(int a,int b){sort规则
                             ^
/in/foo.cc:4:30: error: stray '\345' in program
 bool cmp(int a,int b){sort规则
                              ^
/in/foo.cc:4:31: error: stray '\210' in program
 bool cmp(int a,int b){sort规则
                               ^
/in/foo.cc:4:32: error: stray '\231' in program
 bool cmp(int a,int b){sort规则
                                ^
/in/foo.cc: In function 'bool cmp(int, int)':
/in/foo.cc:5:5: error: expected ';' before 'if'
     if(s[a]==s[b])return k[a]<k[b];
     ^~
/in/foo.cc:5:35: error: statement cannot resolve address of overloaded function
     if(s[a]==s[b])return k[a]<k[b];
                                   ^