foo.c: In function 'input':
foo.c:6:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
6 | scanf("%d",&a[i]);
| ^~~~~~~~~~~~~~~~~
foo.c: In function 'main':
foo.c:41:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
41 | scanf("%d %d",&n1 ,&n2);
| ^~~~~~~~~~~~~~~~~~~~~~~
foo.c: In function 'FindSecondMax':
foo.c:28:15: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]
28 | second=a[l-1];
| ^
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