foo.c: In function 'FindiSecondMax':
foo.c:23:1: warning: control reaches end of non-void function [-Wreturn-type]
   23 | }
      | ^
foo.c: In function 'main':
foo.c:28:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   28 |  scanf("%d",&n1);
      |  ^~~~~~~~~~~~~~~
foo.c:29:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   29 |  scanf("%d",&n2);
      |  ^~~~~~~~~~~~~~~
foo.c:33:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   33 |   scanf("%d",&a[i]);
      |   ^~~~~~~~~~~~~~~~~
foo.c:35:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   35 |   scanf("%d",&b[i]);
      |   ^~~~~~~~~~~~~~~~~

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