foo.c: In function 'main':
foo.c:25:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
25 | scanf("%d",&n);
| ^~~~~~~~~~~~~~
foo.c:28:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
28 | scanf("%d",&arr[i]);
| ^~~~~~~~~~~~~~~~~~~
foo.c:30:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
30 | scanf("%d",&s);
| ^~~~~~~~~~~~~~
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