/in/foo.c: In function 'main':
/in/foo.c:4:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
  scanf("%d",n);
          ^
/in/foo.c:5:9: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  for(m=1,n;m<n;m++)
         ^
/in/foo.c:6:17: error: lvalue required as left operand of assignment
  {n%m==0?s=s+m:s=s
                 ^
/in/foo.c:9:2: error: expected ';' before '}' token
  }
  ^