foo.c: In function 'main':
foo.c:27:1: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   27 | scanf("%d%d",&n1,&n2);
      | ^~~~~~~~~~~~~~~~~~~~~
foo.c:29:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   29 | {scanf("%d",&a[i]);
      |  ^~~~~~~~~~~~~~~~~
foo.c:32:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   32 | {scanf("%d",&b[i]);
      |  ^~~~~~~~~~~~~~~~~

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