/in/foo.c: In function 'main':
/in/foo.c:7:12: error: invalid operands to binary & (have 'char *' and 'int')
  scanf("%d"&n);
        ~~~~^
/in/foo.c:8:6: error: 'i' undeclared (first use in this function)
  for(i=1;i<=n;i++)
      ^
/in/foo.c:8:6: note: each undeclared identifier is reported only once for each function it appears in