Main.c: In function ‘main’:
Main.c:5:2: warning: implicit declaration of function ‘scanf_s’; did you mean ‘scanf’? [-Wimplicit-function-declaration]
    5 |  scanf_s("%d", &x);
      |  ^~~~~~~
      |  scanf
Main.c:4:12: warning: unused variable ‘z’ [-Wunused-variable]
    4 |  int x, y, z,a,b,c,d,e,f;
      |            ^
/usr/bin/ld: /tmp/cc1TZIaH.o: in function `main':
Main.c:(.text.startup+0x1d): undefined reference to `scanf_s'
collect2: error: ld returned 1 exit status