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A-M baby

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Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions
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7
Task/Search-a-list/J/search-a-list-1.j Normal file
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Haystack =: ;:'Zig Zag Wally Ronald Bush Krusty Charlie Bush Bozo'
Needles =: ;:'Washington Bush'
Haystack i. Needles NB. first positions
9 4
Haystack i: Needles NB. last positions
9 7

3
Task/Search-a-list/J/search-a-list-2.j Normal file
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Haystack ;:^:_1@(] ,. [ ((<'is not in haystack')"_)`(#@[ I.@:= ])`(8!:0@])} i.) Needles
Washington is not in haystack
Bush 4

8
Task/Search-a-list/J/search-a-list-3.j Normal file
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msg=: (<'is not in haystack')"_ NB. not found message
idxmissing=: #@[ I.@:= ] NB. indices of items not found
fmtdata=: 8!:0@] NB. format atoms as boxed strings
findLastIndex=: ;:inv@(] ,. [ msg`idxmissing`fmtdata} i:)
Haystack findLastIndex Needles NB. usage
Washington is not in haystack
Bush 7