/in/foo.c: In function 'main':
/in/foo.c:6:9: error: stray '\357' in program
  int i,j，k=0;
         ^
/in/foo.c:6:10: error: stray '\274' in program
  int i,j，k=0;
          ^
/in/foo.c:6:11: error: stray '\214' in program
  int i,j，k=0;
           ^
/in/foo.c:6:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'k'
  int i,j，k=0;
            ^
/in/foo.c:15:7: error: 'j' undeclared (first use in this function)
   for(j=n-1;j>i;j--)
       ^
/in/foo.c:15:7: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:18:5: error: 'k' undeclared (first use in this function)
     k++;
     ^