c-gcc, 166 bytes

Result

AC

Duration

510ms

Code [DL]

a[12];s;main(y,z){z=12;for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*(a[3+-~z%3]*a[6+(z+2)%3]-a[3+(z+2)%3]*a[6+-~z%3]);printf("%d",s/6);}

stdin

75 04 45
08 11 73
34 79 26
40 59 05

stdout

22420

stderr

/tmp/code.c:1:1: warning: data definition has no type or storage class
 a[12];s;main(y,z){z=12;for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*(a[3+-~z%3]*a[6+(z+2)%3]-a[3+(z+2)%3]*a[6+-~z%3]);printf("%d",s/6);}
 ^
/tmp/code.c:1:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
/tmp/code.c:1:7: warning: data definition has no type or storage class
 a[12];s;main(y,z){z=12;for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*(a[3+-~z%3]*a[6+(z+2)%3]-a[3+(z+2)%3]*a[6+-~z%3]);printf("%d",s/6);}
       ^
/tmp/code.c:1:7: warning: type defaults to 'int' in declaration of 's' [-Wimplicit-int]
/tmp/code.c:1:9: warning: return type defaults to 'int' [-Wimplicit-int]
 a[12];s;main(y,z){z=12;for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*(a[3+-~z%3]*a[6+(z+2)%3]-a[3+(z+2)%3]*a[6+-~z%3]);printf("%d",s/6);}
         ^~~~
/tmp/code.c: In function 'main':
/tmp/code.c:1:9: warning: type of 'y' defaults to 'int' [-Wimplicit-int]
/tmp/code.c:1:9: warning: type of 'z' defaults to 'int' [-Wimplicit-int]
/tmp/code.c:1:34: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
 a[12];s;main(y,z){z=12;for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*(a[3+-~z%3]*a[6+(z+2)%3]-a[3+(z+2)%3]*a[6+-~z%3]);printf("%d",s/6);}
                                  ^~~~~
/tmp/code.c:1:34: warning: incompatible implicit declaration of built-in function 'scanf'
/tmp/code.c:1:34: note: include '<stdio.h>' or provide a declaration of 'scanf'
/tmp/code.c:1:149: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
 a[12];s;main(y,z){z=12;for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*(a[3+-~z%3]*a[6+(z+2)%3]-a[3+(z+2)%3]*a[6+-~z%3]);printf("%d",s/6);}
                                                                                                                                                     ^~~~~~
/tmp/code.c:1:149: warning: incompatible implicit declaration of built-in function 'printf'
/tmp/code.c:1:149: note: include '<stdio.h>' or provide a declaration of 'printf'

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