From 27C3 public wiki
CodeGolfChallenge
Contents |
Chaos Codegolf
What is golf?
You have to create a program that consists of as few characters as possible. Warning: it's addicting!
Squeeze your logic into the smallest pieces possible!
Challenges
Generate C
- http://v.gd/27c3golf1
- Pretty easy... But there is always someone who is shorter ;)
Example
input:
3
output:
## ## ##
# # #
# # #
# # #
# # #
# # #
## ## ##
Solution in brainfuck
The grader's brainfuck support is broken, so here goes my brainfuck solution for problem 1. There are many ways to golf it further down. Jchillerup 11:22, 30 December 2010 (CET)
>>>>>>>>>>+++++++++++++++++++++++++++++++++++>++++++++++++++++++++++++++++++++> ++++++++++<<<<<<<<<<<<[-]>>,------------------------------------------------[<<+>+>-] [-],----------[--------------------------------------<[<+++++++++>-]>[<<+>>-]-,------- ---><]<<>[-]>[-]<<[->+>+<<]>>[-<<+>>]<<>>>>>>>>>>>.<<<<<<<<<<[>>>>>>>>>>..<..<<<<<<<< <-]>>>>>>>>>>>.<.<<<<<<<<<<>>++++[<<<>[-]>[-]<<[->+>+<<]>>[-<<+>>]<<>->>>>>>>>>.<<<<<<<<< [>>>>>>>>>>...<.<<<<<<<<<-]>>>>>>>>>>>.<<<<<<<<<<<>>-]<<<>[-]>[-]<< [->+>+<<]>>[-<<+>>]<<>->>>>>>>>>>.<.<<<<<<<<<[>>>>>>>>>>...<.<<<<<<<<<-]>>>>>>>>>>>.<<<< <<<<<<<[-]>[-]<<[->+>+<<]>>[-<<+>>]<>>>>>>>>>>.<<<<<<<<<<[>>>>>>>>>>..<..<<<<<<<<<-]>>>> >>>>>>>.<<<<<<<<<<<
Punycode encoder
- http://v.gd/27c3golf2
- Punycode is an ASCII representation of UTF-8 strings
- Used in international domain names
- See RFC 3492 :)
Example
input:
Chäos Cömpüter Clüb
output:
Chos-moa Cmpter-wxa4c Clb-ioa
Please note: To win mate, you are not allowed to use existing punycode libraries ;)
Results
I hope you've learned something, had fun, and now rather play code golf than playing sudoku if you want to waste time :]
To get your club mate (because you've submitted a good solution), talk to me or ask at the c3d2 <<</>> desk for codegolf from time to time.
Some code golf examples
Perl
s`(\w|
)|([+-])|.`${$@[@@]=$1||join$&,map{((ord$&,$#-)[$0^=1]%3?!$2*/\W/:$$_)?"($_)":$_}splice@@,-2}=$2`gefor<>;print@@
(by ySas)
This perl program turns
abc+- abc++ ab+c* ab*c+
To
a-(b+c) a+b+c (a+b)*c a*b+c
Link: http://golf.shinh.org/p.rb?postfix+to+infix
Ruby
_,$_=*$<;$><<split.sort_by{|i|-i.hex}*' '
(by leonid)
A little program that sorts for you.
Input:
25 1 7 8 6 9 3 5 6 4 2 2 5 8 11 3 7 -8 6 9 0 5 4 12 3 8
Output:
12 11 9 9 8 8 8 7 7 6 6 6 5 5 5 4 4 3 3 3 2 2 1 0 -8
Link: http://golf.shinh.org/p.rb?sort
Python
while 1:a,b=map(int,raw_input().split());print a,"=><"[cmp(a,b)],b
(by recursive)
Compare two numbers:
3 3 4 2 5 9
Output:
3 = 3 4 > 2 5 < 9
Link: http://golf.shinh.org/p.rb?Comparing+two+numbers
Golfscript
6666,-2%{2+.2/@*\/10.3??2*+}*
(by flagitious)
Calculates 1000 digits of PI.
