foo.c: In function 'main':
foo.c:11:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
11 | scanf("%d %d %d", &m, &n, &p);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:13:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
13 | scanf("%d", &a[i]);
| ^~~~~~~~~~~~~~~~~~
foo.c:15:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
15 | scanf("%d", &b[i]);
| ^~~~~~~~~~~~~~~~~~
foo.c:17:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
17 | scanf("%d", &c[i]);
| ^~~~~~~~~~~~~~~~~~
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