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tangentstorm/catalan-1-filter.ijs

Last active October 26, 2020 17:15
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catalan-1-filter.ijs
c =: '01' ([: +/ =)"0 _ ] NB. count 0 and 1
t =: {{(*/ <:/"1 c\ y) *. =/c y }} NB. the two rules
g =: {{'01' {~ #:i.2^2*y}} NB. generate the numbers
f =: {{y {~ I.t"1 y}} NB. filter by t
f g 3
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