foo.c: In function 'main':
foo.c:26:8: warning: unused variable 'n' [-Wunused-variable]
26 | int i,n,n2,a1[10000],a2[10000],n1;
| ^
foo.c: In function 'Unique':
foo.c:23:1: warning: control reaches end of non-void function [-Wreturn-type]
23 | }
| ^
foo.c: In function 'main':
foo.c:27:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
27 | scanf("%d%d",&n1,&n2);
| ^~~~~~~~~~~~~~~~~~~~~
foo.c:29:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
29 | scanf("%d",&a1[i]);
| ^~~~~~~~~~~~~~~~~~
foo.c:31:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
31 | scanf("%d",&a2[i]);
| ^~~~~~~~~~~~~~~~~~
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