StackOverflow2013

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plurals

PO
primarykey
Id
394842
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
2008-12-27T09:45:10.977
CreationDate
2008-12-27T09:45:10.977
FavoriteCount
0
LastActivityDate
2009-01-02T10:00:38.837
LastEditDate
2017-05-23T12:18:33.227
LastEditorUserId
-1
OwnerUserId
49197
ParentId
394574
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
Hynek -Pichi- Vychodil
text
Body
<h3>Language: Erlang, Char count: 222</h3> EDIT2: Erlang preprocessor allows some sort of unbalanced macros so this version is 9 chars shorter. <pre><code>-module(n2). -export([y/1]). -define(D(V,S),n(N)when N>=V->[??S|n(N-V)];). y(N)->io:format(n(N)). ?D(1000,M)?D(900,CM)?D(500,D)?D(400,CD)?D(100,C)?D(90,XC)?D(50,L)?D(40,XL)?D(10,X)?D(9,IX)?D(5,V)?D(4,IV)?D(1,I)n(0)->[10]. </code></pre> EDIT: Shorter version inspired by <a href="https://stackoverflow.com/questions/394574/code-golf-new-year-edition-integer-to-roman-numeral#394807">Darius version</a> (231 chars) <pre><code>-module(n). -export([y/1]). y(N)->io:format([n(N),10]). n(N)when N>9->[Y||C<-n(N div 10),{K,Y}<-lists:zip("IVXLC","XLCDM"),K==C]++o(N rem 10);n(N)->o(N). o(N)->lists:nth(N+1,[[]|string:tokens("I II III IV V VI VII VIII IX"," ")]). </code></pre> It's less readable but save 2 chars (233 chars). <pre><code>-module(n). -export([y/1]). -define(D(V,S),n(N)when N>=V->[??S|n(N-V)]). y(N)->io:format(n(N)). ?D(1000,M);?D(900,CM);?D(500,D);?D(400,CD);?D(100,C);?D(90,XC);?D(50,L);?D(40,XL);?D(10,X);?D(9,IX);?D(5,V);?D(4,IV);?D(1,I);n(0)->[10]. </code></pre> Command line version: <pre><code>-module(n). -export([y/1]). -define(D(V,S),n(N)when N>=V->[??S|n(N-V)]). y([N])->io:format(n(list_to_integer(N))),init:stop(). ?D(1000,M);?D(900,CM);?D(500,D);?D(400,CD);?D(100,C);?D(90,XC);?D(50,L);?D(40,XL);?D(10,X);?D(9,IX);?D(5,V);?D(4,IV);?D(1,I);n(0)->[10]. </code></pre> Invocation: <pre><code>$ erl -noshell -noinput -run n y 2009 MMIX </code></pre> EDIT: I saved 17 chars using literal macro expansion.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POCode Golf New Year Edition - Integer to Roman Numeral
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USCommunity
UserOwnerUserId
1. USHynek -Pichi- Vychodil
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

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