foo.c: In function 'main':
foo.c:21:5: warning: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
21 | scanf_s("%d", &T);
| ^~~~~~~
| scanf
/nix/store/74y3751gsixaz9797ib0hp7c658sp1y5-binutils-2.40/bin/ld: /tmp/ccSDvmCl.o: in function `main':
foo.c:(.text.startup+0x11): undefined reference to `scanf_s'
/nix/store/74y3751gsixaz9797ib0hp7c658sp1y5-binutils-2.40/bin/ld: foo.c:(.text.startup+0x5c): undefined reference to `scanf_s'
collect2: error: ld returned 1 exit status
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19230227周铭铭 (周铭铭) LV 9
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