/in/foo.c: In function 'main':
/in/foo.c:6:10: error: expected expression before '>' token
  if (m-n)>0 printf("%.3lf",sqrt((m-n)*(m-n)+r*r));
          ^
/in/foo.c: At top level:
/in/foo.c:9:2: error: stray '#' in program
 }#include "stdio.h"
  ^
/in/foo.c:9:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before string constant
 }#include "stdio.h"
           ^~~~~~~~~