foo.c: In function 'Search':
foo.c:13:1: warning: control reaches end of non-void function [-Wreturn-type]
   13 | }
      | ^
foo.c: In function 'main':
foo.c:18:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   18 |  scanf("%d",&x1);
      |  ^~~~~~~~~~~~~~~
foo.c:21:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   21 |   scanf("%d",&a[x2]);
      |   ^~~~~~~~~~~~~~~~~~
foo.c:23:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   23 |  scanf("%d",&x);
      |  ^~~~~~~~~~~~~~

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