foo.c: In function 'main':
foo.c:7:17: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
    7 |         scanf("%d",n);
      |                ~^  ~
      |                 |  |
      |                 |  int
      |                 int *
foo.c: In function 'Output':
foo.c:18:1: warning: control reaches end of non-void function [-Wreturn-type]
   18 | }
      | ^

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