foo.c: In function 'FindiSecondMax':
foo.c:27:1: warning: control reaches end of non-void function [-Wreturn-type]
   27 | }
      | ^
foo.c: In function 'main':
foo.c:32:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   32 |  scanf("%d",&n1);
      |  ^~~~~~~~~~~~~~~
foo.c:33:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   33 |  scanf("%d",&n2);
      |  ^~~~~~~~~~~~~~~
foo.c:37:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   37 |   scanf("%d",&a[i]);
      |   ^~~~~~~~~~~~~~~~~
foo.c:39:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   39 |   scanf("%d",&b[i]);
      |   ^~~~~~~~~~~~~~~~~

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