/in/foo.cc:6:7: error: stray '\357' in program
  scanf（"%d%d%d",&a,&b,&c);
       ^
/in/foo.cc:6:8: error: stray '\274' in program
  scanf（"%d%d%d",&a,&b,&c);
        ^
/in/foo.cc:6:9: error: stray '\210' in program
  scanf（"%d%d%d",&a,&b,&c);
         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:6:10: error: expected ';' before string constant
  scanf（"%d%d%d",&a,&b,&c);
          ^~~~~~~~
/in/foo.cc:6:28: warning: statement is a reference, not call, to function 'scanf' [-Waddress]
  scanf（"%d%d%d",&a,&b,&c);
                            ^
/in/foo.cc:6:28: warning: statement has no effect [-Wunused-value]