Re: one interview question, 17 lines in java, 3 lines in ruby.
Daniel Pitts wrote:
Nice. I think I'm satisfied of the compactness of this program.
Yes, it's compact. But we have a new one...
119 chars:
enum C{C;int i,j;{for(;j<27;j++)System.out.printf(j>0?"%c":
++i+" %c",j<i?i<27?i+64:j%10+48:11+(j=-1));System.exit(0);}}
Unless you consider passing things in from the command line (could be
cheating, but whatever)
73 characters:
enum C{C;{System.out.format(System.getProperty("o"),
10);System.exit(0);}}
Run it as
java "-Do=1 A%1$c2 BB%1$c3 CCC%1$c4 DDDD%1$c5 EEEEE%1$c6 FFFFFF%1$c7
GGGGGGG%1$c8 HHHHHHHH%1$c9 IIIIIIIII%1$c10 JJJJJJJJJJ%1$c11 KKKKKKKKKKK
%1$c12 LLLLLLLLLLLL%1$c13 MMMMMMMMMMMMM%1$c14 NNNNNNNNNNNNNN%1$c15
OOOOOOOOOOOOOOO%1$c16 PPPPPPPPPPPPPPPP%1$c17 QQQQQQQQQQQQQQQQQ%1$c18
RRRRRRRRRRRRRRRRRR%1$c19 SSSSSSSSSSSSSSSSSSS%1$c20 TTTTTTTTTTTTTTTTTTTT
%1$c21 UUUUUUUUUUUUUUUUUUUUU%1$c22 VVVVVVVVVVVVVVVVVVVVVV%1$c23
WWWWWWWWWWWWWWWWWWWWWWW%1$c24 XXXXXXXXXXXXXXXXXXXXXXXX%1$c25
YYYYYYYYYYYYYYYYYYYYYYYYY%1$c26 ZZZZZZZZZZZZZZZZZZZZZZZZZZ%1$c27
012345678901234567890123456%1$c" C
So what would you say about *0*-length solution?
Run it as:
jrunscript -e "for(i=0;i++<27;){print(i+'
');for(j=0;j<i;++j)print(i<27?String.fromCharCode(i+64):j%10);println('');}"
(Requires JDK 1.6+)
You could also use the environment variables instead, but setting that
depends on the system. It shaves 4 off though (getProperty -
getenv). Also, depending on your system, you could replace all the
%1$c with an actual linefeed [...]
We don't need it since we have %n.
Although, I really don't consider this type of solution as interesting.
Neither do I. ;-)
piotr