by@kcz146
WA
477ms
a=(`cat`) for((;z<9;)){ $[a[t=z]-=a[9+t%3],s+=t/6*a[z++]*(a[p=++t%3+3]*a[++t%3]-a[t%3]*a[p-3])/6] } echo $s
88 49 22 95 64 33 38 51 06 02 84 84
-7598
/volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: 0: command not found /volume/CODE: line 3: -5580: command not found /volume/CODE: line 3: -10783: command not found /volume/CODE: line 3: -7598: command not found