/in/foo.cc:12:9: error: stray '\357' in program
  if(c==1）
         ^
/in/foo.cc:12:10: error: stray '\274' in program
  if(c==1）
          ^
/in/foo.cc:12:11: error: stray '\211' in program
  if(c==1）
           ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:13:5: error: expected ')' before 'if'
     if(d==0)
     ^~
/in/foo.cc:17:2: error: 'else' without a previous 'if'
  else
  ^~~~
/in/foo.cc:11:6: warning: unused variable 'd' [-Wunused-variable]
  int d=b%2;
      ^