StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<h3>Language: Erlang, Char count: 222</h3> <p>EDIT2: Erlang preprocessor allows some sort of unbalanced macros so this version is 9 chars shorter.</p> <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> <p>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)</p> <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> <p>It's less readable but save 2 chars (233 chars).</p> <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> <p>Command line version:</p> <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> <p>Invocation:</p> <pre><code>$ erl -noshell -noinput -run n y 2009 MMIX </code></pre> <p>EDIT: I saved 17 chars using literal macro expansion.</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload