ロンドン地下鉄A.K.A.地下鉄は世界で最も古い地下鉄で、現在267の名前の駅（「Edgware
Road」と「Hammersmith」はそれぞれ2つの場所を占めているため厳密に269 **駅に対応）
チャレンジ
nameで指定されたステーションにサービスを提供している行の名前を入力として出力します。
Input:
A string or list of characters
-
This may be assumed to be a valid station name (as
listed in the code-block below). -
You may assume any
&in the input will
consistently be the wordand(or
And) instead if you wish, just state it clearly in
your answer.
Output:
Separated output listing those of the eleven lines
servicing that station:
-
A list of strings, a list of lists of characters, printed text,
a string, a list of characters; if in doubt ask. -
You may consistently output the word
and
(orAnd) in place of any&if you wish,
just state this clearly in your answer. -
With the caveat that if printing or returning a string or list
of characters that the separator-substring used is not present in
any of the line names (including the&or
andorAndused) – this therefore
excludes the use of a single space character as the separator.
The Tube Network:
– Note: This is the final state, even if it happens to contain
a spelling mistake (unless addressed prior to any
answers)
Input (Station Name) : Output (list of tube line names)
----------------------------------------------------------------------------------------------------------------
"Acton Town" : ["District","Piccadilly"]
"Aldgate" : ["Circle","Metropolitan"]
"Aldgate East" : ["District","Hammersmith & City"]
"Alperton" : ["Piccadilly"]
"Amersham" : ["Metropolitan"]
"Angel" : ["Northern"]
"Archway" : ["Northern"]
"Arnos Grove" : ["Piccadilly"]
"Arsenal" : ["Piccadilly"]
"Baker Street" : ["Bakerloo","Circle","Hammersmith & City","Jubilee","Metropolitan"]
"Balham" : ["Northern"]
"Bank" : ["Central","Northern","Waterloo & City"]
"Barbican" : ["Circle","Hammersmith & City","Metropolitan"]
"Barking" : ["District","Hammersmith & City"]
"Barkingside" : ["Central"]
"Barons Court" : ["District","Piccadilly"]
"Bayswater" : ["Circle","District"]
"Becontree" : ["District"]
"Belsize Park" : ["Northern"]
"Bermondsey" : ["Jubilee"]
"Bethnal Green" : ["Central"]
"Blackfriars" : ["Circle","District"]
"Blackhorse Road" : ["Victoria"]
"Bond Street" : ["Central","Jubilee"]
"Borough" : ["Northern"]
"Boston Manor" : ["Piccadilly"]
"Bounds Green" : ["Piccadilly"]
"Bow Road" : ["District","Hammersmith & City"]
"Brent Cross" : ["Northern"]
"Brixton" : ["Victoria"]
"Bromley-by-Bow" : ["District","Hammersmith & City"]
"Buckhurst Hill" : ["Central"]
"Burnt Oak" : ["Northern"]
"Caledonian Road" : ["Piccadilly"]
"Camden Town" : ["Northern"]
"Canada Water" : ["Jubilee"]
"Canary Wharf" : ["Jubilee"]
"Canning Town" : ["Jubilee"]
"Cannon Street" : ["Circle","District"]
"Canons Park" : ["Jubilee"]
"Chalfont & Latimer" : ["Metropolitan"]
"Chalk Farm" : ["Northern"]
"Chancery Lane" : ["Central"]
"Charing Cross" : ["Bakerloo","Northern"]
"Chesham" : ["Metropolitan"]
"Chigwell" : ["Central"]
"Chiswick Park" : ["District"]
"Chorleywood" : ["Metropolitan"]
"Clapham Common" : ["Northern"]
"Clapham North" : ["Northern"]
"Clapham South" : ["Northern"]
"Cockfosters" : ["Piccadilly"]
"Colindale" : ["Northern"]
"Colliers Wood" : ["Northern"]
"Covent Garden" : ["Piccadilly"]
"Croxley" : ["Metropolitan"]
"Dagenham East" : ["District"]
"Dagenham Heathway" : ["District"]
"Debden" : ["Central"]
"Dollis Hill" : ["Jubilee"]
"Ealing Broadway" : ["Central","District"]
"Ealing Common" : ["District","Piccadilly"]
"Earl's Court" : ["District","Piccadilly"]
"East Acton" : ["Central"]
"East Finchley" : ["Northern"]
"East Ham" : ["District","Hammersmith & City"]
"East Putney" : ["District"]
"Eastcote" : ["Metropolitan","Piccadilly"]
"Edgware" : ["Northern"]
"Edgware Road" : ["Bakerloo","Circle","District","Hammersmith & City"]
"Elephant & Castle" : ["Bakerloo","Northern"]
"Elm Park" : ["District"]
"Embankment" : ["Bakerloo","Circle","District","Northern"]
"Epping" : ["Central"]
"Euston" : ["Northern","Victoria"]
"Euston Square" : ["Circle","Hammersmith & City","Metropolitan"]
"Fairlop" : ["Central"]
"Farringdon" : ["Circle","Hammersmith & City","Metropolitan"]
"Finchley Central" : ["Northern"]
"Finchley Road" : ["Jubilee","Metropolitan"]
"Finsbury Park" : ["Piccadilly","Victoria"]
"Fulham Broadway" : ["District"]
"Gants Hill" : ["Central"]
"Gloucester Road" : ["Circle","District","Piccadilly"]
"Golders Green" : ["Northern"]
"Goldhawk Road" : ["Circle","Hammersmith & City"]
"Goodge Street" : ["Northern"]
"Grange Hill" : ["Central"]
"Great Portland Street" : ["Circle","Hammersmith & City","Metropolitan"]
"Greenford" : ["Central"]
"Green Park" : ["Jubilee","Piccadilly","Victoria"]
"Gunnersbury" : ["District"]
"Hainault" : ["Central"]
"Hammersmith" : ["Circle","District","Hammersmith & City","Piccadilly"]
"Hampstead" : ["Northern"]
"Hanger Lane" : ["Central"]
"Harlesden" : ["Bakerloo"]
"Harrow & Wealdstone" : ["Bakerloo"]
"Harrow-on-the-Hill" : ["Metropolitan"]
"Hatton Cross" : ["Piccadilly"]
"Heathrow Terminals 1, 2, 3" : ["Piccadilly"]
"Heathrow Terminal 4" : ["Piccadilly"]
"Heathrow Terminal 5" : ["Piccadilly"]
"Hendon Central" : ["Northern"]
"High Barnet" : ["Northern"]
"Highbury & Islington" : ["Victoria"]
"Highgate" : ["Northern"]
"High Street Kensington" : ["Circle","District"]
"Hillingdon" : ["Metropolitan","Piccadilly"]
"Holborn" : ["Central","Piccadilly"]
"Holland Park" : ["Central"]
"Holloway Road" : ["Piccadilly"]
"Hornchurch" : ["District"]
"Hounslow Central" : ["Piccadilly"]
"Hounslow East" : ["Piccadilly"]
"Hounslow West" : ["Piccadilly"]
"Hyde Park Corner" : ["Piccadilly"]
"Ickenham" : ["Metropolitan","Piccadilly"]
"Kennington" : ["Northern"]
"Kensal Green" : ["Bakerloo"]
"Kensington (Olympia)" : ["District"]
"Kentish Town" : ["Northern"]
"Kenton" : ["Bakerloo"]
"Kew Gardens" : ["District"]
"Kilburn" : ["Jubilee"]
"Kilburn Park" : ["Bakerloo"]
"Kingsbury" : ["Jubilee"]
"King's Cross St. Pancras" : ["Circle","Hammersmith & City","Metropolitan","Northern","Piccadilly","Victoria"]
"Knightsbridge" : ["Piccadilly"]
"Ladbroke Grove" : ["Circle","Hammersmith & City"]
"Lambeth North" : ["Bakerloo"]
"Lancaster Gate" : ["Central"]
"Latimer Road" : ["Circle","Hammersmith & City"]
"Leicester Square" : ["Northern","Piccadilly"]
"Leyton" : ["Central"]
"Leytonstone" : ["Central"]
"Liverpool Street" : ["Central","Circle","Hammersmith & City","Metropolitan"]
"London Bridge" : ["Jubilee","Northern"]
"Loughton" : ["Central"]
"Maida Vale" : ["Bakerloo"]
"Manor House" : ["Piccadilly"]
"Mansion House" : ["Circle","District"]
"Marble Arch" : ["Central"]
"Marylebone" : ["Bakerloo"]
"Mile End" : ["Central","District","Hammersmith & City"]
"Mill Hill East" : ["Northern"]
"Monument" : ["Circle","District"]
"Moorgate" : ["Circle","Hammersmith & City","Metropolitan","Northern"]
"Moor Park" : ["Metropolitan"]
"Morden" : ["Northern"]
"Mornington Crescent" : ["Northern"]
"Neasden" : ["Jubilee"]
"Newbury Park" : ["Central"]
"North Acton" : ["Central"]
"North Ealing" : ["Piccadilly"]
"North Greenwich" : ["Jubilee"]
"North Harrow" : ["Metropolitan"]
"North Wembley" : ["Bakerloo"]
"Northfields" : ["Piccadilly"]
"Northolt" : ["Central"]
"Northwick Park" : ["Metropolitan"]
"Northwood" : ["Metropolitan"]
"Northwood Hills" : ["Metropolitan"]
"Notting Hill Gate" : ["Central","Circle","District"]
"Oakwood" : ["Piccadilly"]
"Old Street" : ["Northern"]
"Osterley" : ["Piccadilly"]
"Oval" : ["Northern"]
"Oxford Circus" : ["Bakerloo","Central","Victoria"]
"Paddington" : ["Bakerloo","Circle","District","Hammersmith & City"]
"Park Royal" : ["Piccadilly"]
"Parsons Green" : ["District"]
"Perivale" : ["Central"]
"Piccadilly Circus" : ["Bakerloo","Piccadilly"]
"Pimlico" : ["Victoria"]
"Pinner" : ["Metropolitan"]
"Plaistow" : ["District","Hammersmith & City"]
"Preston Road" : ["Metropolitan"]
"Putney Bridge" : ["District"]
"Queen's Park" : ["Bakerloo"]
"Queensbury" : ["Jubilee"]
"Queensway" : ["Central"]
"Ravenscourt Park" : ["District"]
"Rayners Lane" : ["Metropolitan","Piccadilly"]
"Redbridge" : ["Central"]
"Regent's Park" : ["Bakerloo"]
"Richmond" : ["District"]
"Rickmansworth" : ["Metropolitan"]
"Roding Valley" : ["Central"]
"Royal Oak" : ["Circle","Hammersmith & City"]
"Ruislip" : ["Metropolitan","Piccadilly"]
"Ruislip Gardens" : ["Central"]
"Ruislip Manor" : ["Metropolitan","Piccadilly"]
"Russell Square" : ["Piccadilly"]
"St. James's Park" : ["Circle","District"]
"St. John's Wood" : ["Jubilee"]
"St. Paul's" : ["Central"]
"Seven Sisters" : ["Victoria"]
"Shepherd's Bush" : ["Central"]
"Shepherd's Bush Market" : ["Circle","Hammersmith & City"]
"Sloane Square" : ["Circle","District"]
"Snaresbrook" : ["Central"]
"South Ealing" : ["Piccadilly"]
"South Harrow" : ["Piccadilly"]
"South Kensington" : ["Circle","District","Piccadilly"]
"South Kenton" : ["Bakerloo"]
"South Ruislip" : ["Central"]
"South Wimbledon" : ["Northern"]
"South Woodford" : ["Central"]
"Southfields" : ["District"]
"Southgate" : ["Piccadilly"]
"Southwark" : ["Jubilee"]
"Stamford Brook" : ["District"]
"Stanmore" : ["Jubilee"]
"Stepney Green" : ["District","Hammersmith & City"]
"Stockwell" : ["Northern","Victoria"]
"Stonebridge Park" : ["Bakerloo"]
"Stratford" : ["Central","Jubilee"]
"Sudbury Hill" : ["Piccadilly"]
"Sudbury Town" : ["Piccadilly"]
"Swiss Cottage" : ["Jubilee"]
"Temple" : ["Circle","District"]
"Theydon Bois" : ["Central"]
"Tooting Bec" : ["Northern"]
"Tooting Broadway" : ["Northern"]
"Tottenham Court Road" : ["Central","Northern"]
"Tottenham Hale" : ["Victoria"]
"Totteridge & Whetstone" : ["Northern"]
"Tower Hill" : ["Circle","District"]
"Tufnell Park" : ["Northern"]
"Turnham Green" : ["District","Piccadilly"]
"Turnpike Lane" : ["Piccadilly"]
"Upminster" : ["District"]
"Upminster Bridge" : ["District"]
"Upney" : ["District"]
"Upton Park" : ["District","Hammersmith & City"]
"Uxbridge" : ["Metropolitan","Piccadilly"]
"Vauxhall" : ["Victoria"]
"Victoria" : ["Circle","District","Victoria"]
"Walthamstow Central" : ["Victoria"]
"Wanstead" : ["Central"]
"Warren Street" : ["Northern","Victoria"]
"Warwick Avenue" : ["Bakerloo"]
"Waterloo" : ["Bakerloo","Jubilee","Northern","Waterloo & City"]
"Watford" : ["Metropolitan"]
"Wembley Central" : ["Bakerloo"]
"Wembley Park" : ["Jubilee","Metropolitan"]
"West Acton" : ["Central"]
"West Brompton" : ["District"]
"West Finchley" : ["Northern"]
"West Ham" : ["District","Hammersmith & City","Jubilee"]
"West Hampstead" : ["Jubilee"]
"West Harrow" : ["Metropolitan"]
"West Kensington" : ["District"]
"West Ruislip" : ["Central"]
"Westbourne Park" : ["Circle","Hammersmith & City"]
"Westminster" : ["Circle","District","Jubilee"]
"White City" : ["Central"]
"Whitechapel" : ["District","Hammersmith & City"]
"Willesden Green" : ["Jubilee"]
"Willesden Junction" : ["Bakerloo"]
"Wimbledon" : ["District"]
"Wimbledon Park" : ["District"]
"Wood Green" : ["Piccadilly"]
"Wood Lane" : ["Circle","Hammersmith & City"]
"Woodford" : ["Central"]
"Woodside Park" : ["Northern"]
… 11行の名前は次のとおりです。
Bakerloo
Central
Circle
District
Hammersmith & City
Jubilee
Metropolitan
Northern
Piccadilly
Victoria
Waterloo & City
*トランスポートロンドンでは他の列車も運行していますが、一部は「The
Tube」（「ドックランズライトレールウェイ」または「DLR」）の一部と呼ばれることもありますが、ここに記載されている11列に固執します。
**リンクされたウィキペディアのページには現在270と記載されていますが、私は彼らが誤って
“DLR”をサービスしているにもかかわらず、カナリーワーフの2番目の場所を間違って数えていると思います）
Mornington Crescent
（互換性があります）を使用した、ゴルフによる提出のための想像上のブラウニーポイントのヒープIDEはここで入手可能です！
This is code-golf,
so the shortest code in bytes wins per language and the shortest
solution wins (don’t let golfing languages put you off golfing in
other languages). Have fun!
ベストアンサー
ES9、Node.js/Chrome、989 977 931 892 889 887バイト
s=>"Bakerloo,Central,Circle,District,Hammersmith & City,Jubilee,Metropolitan,Northern,Piccadilly,Victoria,Waterloo & City".split`,`.filter((_,i)=>parseInt('7c1w0o741s3k39w22c020c080we80y3l0a8w0t3xhs2olc7g0km87w0176r8ao2e4g0q5w0eeb753mekwx1k18'.substr(" 5Kd5_9 5c4^5];`3]3 4]4^<`Y`0^5h3 9 ;<`3 Wf9 9`E 0< ; 9`;]2o4b99a33d5`; 3`3jB]Kj9b55e8m5]= KmS ;]K5`9^9]<_3^0 ;]3_3]3 99;b=]K 3 Xe95`9_Qd5_0o3b;];bKf=e=b3jH_<]4d; 3g:d45eT]J_5Kk4{2q9_Kc4c<]5a3d8`5hF 4jKhLUm3|5]: ;a5{<> :^3d5t9]5l6_A~f9h5]5b5b9hK]9]: 5l4:a5m9}4^@oHkH^3e3c1c4nBf<^9~3n=l<]9]5]5a9kK 5 5`: =g:aHcAb2q?_2b0tAsNc;]9]9_3e5e3qAkR^Ac5bK Mc?a;9t=y2_;]5b3_2e<3 9`5_Ga4h9t8_9^>e3]H^Eg5zAe4cZ_;ePGm2 3a3".replace(/./g,c=>c.repeat((n=c[C='charCodeAt']())<92||n-91))[C](parseInt(s.replace(/W|d/g,''),36)*79%2777%2328)*2-96,2),36)>>i&1) 完全なテストスイート（Node.js）
デモ（Chrome）
NB: Due to inconsistencies in the
implementation of parseInt() across
browsers(1), this is only guaranteed to work for all
stations on Chrome.
<div class=”snippet” data-lang=”js” data-hide=”true”
data-console=”true” data-babel=”false”> <div
class=”snippet-code snippet-currently-hidden”>
let f =
s=>"Bakerloo,Central,Circle,District,Hammersmith & City,Jubilee,Metropolitan,Northern,Piccadilly,Victoria,Waterloo & City".split`,`.filter((_,i)=>parseInt('7c1w0o741s3k39w22c020c080we80y3l0a8w0t3xhs2olc7g0km87w0176r8ao2e4g0q5w0eeb753mekwx1k18'.substr(" 5Kd5_9 5c4^5];`3]3 4]4^<`Y`0^5h3 9 ;<`3 Wf9 9`E 0< ; 9`;]2o4b99a33d5`; 3`3jB]Kj9b55e8m5]= KmS ;]K5`9^9]<_3^0 ;]3_3]3 99;b=]K 3 Xe95`9_Qd5_0o3b;];bKf=e=b3jH_<]4d; 3g:d45eT]J_5Kk4{2q9_Kc4c<]5a3d8`5hF 4jKhLUm3|5]: ;a5{<> :^3d5t9]5l6_A~f9h5]5b5b9hK]9]: 5l4:a5m9}4^@oHkH^3e3c1c4nBf<^9~3n=l<]9]5]5a9kK 5 5`: =g:aHcAb2q?_2b0tAsNc;]9]9_3e5e3qAkR^Ac5bK Mc?a;9t=y2_;]5b3_2e<3 9`5_Ga4h9t8_9^>e3]H^Eg5zAe4cZ_;ePGm2 3a3".replace(/./g,c=>c.repeat((n=c[C='charCodeAt']())<92||n-91))[C](parseInt(s.replace(/W|d/g,''),36)*79%2777%2328)*2-96,2),36)>>i&1)
</div> </div>
（1）仕様：mathIntを基数-R記法[...]でZで表される数学的な整数値とする。
Rが2,4,8,10,16、または32でない場合、mathIntは、基数-R表記でZで表される数学的整数値に対する実装依存の近似/em>
どうやって？
以下は入力 s = "St. James's Park"
のステップバイステップデコード例です。
ステップ1：
すべてのパディング文字を展開することにより、最初に一次ルックアップテーブル（503〜2,328バイト）を展開します。これらの文字は、92より大きいASCIIコードでエンコードされますが、ペイロードデータは48〜90の範囲を使用します。
tbl = " 5Kd5_9 5c4[...]"
.replace(
/./g, c =>
c.repeat((n = c.charCodeAt()) < 92 || n - 91)
)
ステップ2：
入力文字列からアルファベット以外の文字をすべて削除します。
str = s.replace(/W|d/g, '')
これは "StJamessPark" を与えます。
ステップ3：
結果の文字列を基数36として解析します。
id = parseInt(str, 36)
これは 3793395908848905700 です（これは Chrome V8 によって返された近似結果です）。 ）。
ステップ4：
ハッシュ値を計算します。
hash = id * 79 % 2777 % 2328
これは 533 を与えます。
NB: Due to loss of precision, this result is
not mathematically correct (it should be 184). But the
lookup table was — of course — built the same way, so that’s the
one we’re expecting.
ステップ5：
主ルックアップテーブルのこの位置にある文字のASCIIコードを取得します。
code = tbl.charCodeAt(hash)
これは 58 （これは '：' の文字です）を与えます。
ステップ＃6
この値を使用して、セカンダリルックアップテーブルから2文字の文字列を抽出します。
msk36 = '7c1w0o74[...]'.substr(code * 2 - 96, 2)
これは 0c を与えます。
ステップ7
この文字列を基数36として解析します。
msk = parseInt(msk36, 36)
12 となります。
ステップ＃8
最後に、 msk
で設定されたビットに従って、最下位のものから開始して、ステーションリストをフィルタリングします。
"Bakerloo,Central,Circle,District,[...]".split`,`.filter((_, i) => msk >> i & 1)
この例では、 msk は 12 を保持しています。これはバイナリで
00000001100 です。最終的な結果につながる3番目と4番目のステーションを維持します：
['Circle'、 'District'] 。