foo.c: In function 'MergeSubs':
foo.c:53:7: warning: unused variable 'mcy' [-Wunused-variable]
int mcy[10000];
^~~
foo.c: In function 'main':
foo.c:11:17: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
int n1, n2, i; scanf("%d%d", &n1, &n2);
^~~~~~~~~~~~~~~~~~~~~~~
foo.c:13:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a1[i]);
^~~~~~~~~~~~~~~~~~~
foo.c:15:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a2[i]);
^~~~~~~~~~~~~~~~~~~
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