Actually, I meant to write:
{.@#:@(,: 2 * >./@,@:|)i:2
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
But this would work just as well, as a model:
{.@#:@(,: 2 * |)i:2
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
--
Raul
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