foo.c: In function 'main':
foo.c:6:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
6 | scanf("%d", &n);
| ^~~~~~~~~~~~~~~
foo.c:10:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
10 | scanf("%d", &arr[i]);
| ^~~~~~~~~~~~~~~~~~~~
foo.c:13:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
13 | scanf("%d", &x);
| ^~~~~~~~~~~~~~~
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