/in/foo.cc:5:24: error: stray '\357' in program
    5 |     while((c=getchar())！=EOF)
      |                        ^
/in/foo.cc:5:25: error: stray '\274' in program
    5 |     while((c=getchar())！=EOF)
      |                         ^
/in/foo.cc:5:26: error: stray '\201' in program
    5 |     while((c=getchar())！=EOF)
      |                          ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:5:27: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
    5 |     while((c=getchar())！=EOF)
      |                           ^