/in/foo.cc:40:10: error: stray '\357' in program
  return 0； 
          ^
/in/foo.cc:40:11: error: stray '\274' in program
  return 0； 
           ^
/in/foo.cc:40:12: error: stray '\233' in program
  return 0； 
            ^
/in/foo.cc: In function 'bool check(std::__cxx11::string)':
/in/foo.cc:9:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<str.size();i++)
              ~^~~~~~~~~~~
/in/foo.cc:15:11: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
     str[i]=='#'|str[i]=='$')fhnum =1;
            
/in/foo.cc: In function 'int main()':
/in/foo.cc:25:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<st.size();i++)
              ~^~~~~~~~~~
/in/foo.cc:30:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(i==st.size()-1&&check(s))
       ~^~~~~~~~~~~~~
/in/foo.cc:41:1: error: expected ';' before '}' token
 }
 ^