by@kcz146
WA
484ms
a=(`cat`)
for z in {0..8};{
$[a[t=z]-=a[9+z%3],s+=z/6*a[z]*(a[++t%3+3]*a[q=++t%3]-a[q+3]*a[z%3])/6]
}
echo $s53 70 46 99 02 27 03 39 02 67 46 28
2716
/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: 8597: command not found /volume/CODE: line 3: 9476: command not found /volume/CODE: line 3: 2716: command not found