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",&n1);
| ^~~~~~~~~~~~~~~
foo.c:26:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
26 | scanf("%d",&n2);
| ^~~~~~~~~~~~~~~
foo.c:29:22: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
29 | for(i=0; i<n1; i++) scanf("%d",&a[i]);
| ^~~~~~~~~~~~~~~~~
foo.c:30:22: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
30 | for(i=0; i<n2; i++) scanf("%d",&b[i]);
| ^~~~~~~~~~~~~~~~~
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