foo.c: In function 'main':
foo.c:6:9: warning: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    6 |         scanf_s("%d", &n);
      |         ^~~~~~~
      |         scanf
foo.c:5:20: warning: unused variable 'i' [-Wunused-variable]
    5 |         int n = 0, i = 0;
      |                    ^
/nix/store/1fn92b0783crypjcxvdv6ycmvi27by0j-binutils-2.40/bin/ld: /tmp/cczJa286.o: in function `main':
foo.c:(.text.startup+0x2f): undefined reference to `scanf_s'
/nix/store/1fn92b0783crypjcxvdv6ycmvi27by0j-binutils-2.40/bin/ld: foo.c:(.text.startup+0x56): undefined reference to `scanf_s'
collect2: error: ld returned 1 exit status

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