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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Van-Eck-sequence/Factor/van-eck-sequence.factor Normal file
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USING: assocs fry kernel make math namespaces prettyprint
sequences ;
: van-eck ( n -- seq )
[
0 , 1 - H{ } clone '[
building get [ length 1 - ] [ last ] bi _ 3dup
2dup key? [ at - ] [ 3drop 0 ] if , set-at
] times
] { } make ;
1000 van-eck 10 [ head ] [ tail* ] 2bi [ . ] bi@