20 lines
387 B
Text
20 lines
387 B
Text
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def prb: (now|tostring[-1:] | tonumber) % 2 == 0;
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def balanced:
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if length==0 then true
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elif .[:1] == "]" then false
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else test("[[][]]") and (gsub("[[][]]"; "") | balanced)
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end;
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def task($n):
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if $n%2 == 1 then null
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else
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(reduce range(0; $n) as $i ("";
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. + (if prb then "[" else "]" end) ))
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| "\(.): \(balanced)"
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end;
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task(0),
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task(2),
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(range(0;10) | task(4))
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