/in/foo.cc: In function 'int main()':
/in/foo.cc:14:25: error: expected ')' before ';' token
   14 |                 sort(a+1;a+1+r);
      |                     ~   ^
      |                         )
/in/foo.cc:14:31: error: expected ';' before ')' token
   14 |                 sort(a+1;a+1+r);
      |                               ^
      |                               ;
/in/foo.cc:14:29: warning: statement has no effect [-Wunused-value]
   14 |                 sort(a+1;a+1+r);
      |                          ~~~^~