foo.c: In function 'main':
foo.c:22:32: error: expected ')' before 'd'
   22 |     printf("\n%d\n" "\n%d\n", b d / b);
      |           ~                    ^~
      |                                )
foo.c:22:12: warning: format '%d' expects a matching 'int' argument [-Wformat=]
   22 |     printf("\n%d\n" "\n%d\n", b d / b);
      |            ^~~~~~~~
foo.c:22:25: note: format string is defined here
   22 |     printf("\n%d\n" "\n%d\n", b d / b);
      |                        ~^
      |                         |
      |                         int
foo.c:5:18: warning: variable 'd' set but not used [-Wunused-but-set-variable]
    5 |     int a, b, c, d, e;
      |                  ^

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