foo.c: In function 'main':
foo.c:8:3: warning: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    8 |   scanf_s("%d", &a[i]);
      |   ^~~~~~~
      |   scanf
foo.c:5:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    5 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccNfSH6i.o: in function `main':
foo.c:(.text.startup+0x7c): undefined reference to `scanf_s'
collect2: error: ld returned 1 exit status

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