Under construction

This is a test of golf server. You can enjoy short coding here in several languages (69 languages). The purpose of this server is not serious competition. Joke problems are welcomed and you can speak freely about problems and can release spoilers. For serious competition with ranking, enter Code Golf.

IRC channel for this golf server: #anagol in freenode. Please feel free to join the channel to talk about various things around golf.

Mark Byers kindly prepared a site for this golf server. If you would like to join to add tips, please ask Mark to add you as a collaborator (supposedly, in IRC?).

I've just understood how to create too short entries (thanks for nazo). However, it seems not to be easy to fix the bug. I'll work on the problem in near future and I'll remove entries which is considered to use the bug. Thanks for understanding.

Active problems

• 222. PTR 1day(s) and 8:49:28 left (07/04 18:29:29 JST)
• 223. nth root of v 6day(s) and 16:29:47 left (07/10 02:09:48 JST)

Hot post mortems

• 221. log 7day(s) and 8:31:58 before
• 219. Linear Congruences 8day(s) and 11:21:05 before
• 220. simple octagon tesselation 10day(s) and 16:20:01 before

All problems

1. hello world
2. echo
3. 99 shinichiroes of hamaji
4. example_com
5. Smileys Triangle
6. tennis
7. permutater
8. delete blank lines
9. Dancing Kids
10. bowling scorer
11. e
12. Hamming Numbers
13. Hole in one
14. ultimate problem
15. Card Sharp
16. even lines
17. sort characters
18. Square root
19. Fibonacci Numbers
20. prime numbers
21. invert case
22. Expression
23. All Expressions
24. LCS
25. delete last line
26. swap lines
27. rotate lines
28. transpose lines
29. exit status
30. multi_key sort
31. show the way
32. Booklet Printing
33. Tak y
34. FizzBuzz
35. Little Endian Calculator
36. infix to postfix
37. Greatest Common Divisor
38. banner
39. HQ9Plus
40. Least Common Multiple
41. judge Janken
42. delete duplicate lines
43. reverse lines
44. palindromize
45. Phone Key Pad
46. L system
47. easy regexp
48. google
49. Tetris
50. Evil C Compiler
51. Bracket Matching
52. Nearest Smaller Value fixed version
53. right time
54. Circle Art
55. join lines
56. duplicate lines
57. inverse matrix
58. maze solving
59. 128 bits
60. Summation
61. Rule 30
62. Sierpinski Fractal
63. 123
64. edlin
65. Mirroring Character
66. The Golden Ratio
67. factoriazation
68. Quine
69. Life game
70. chemical equation
71. Caesar cipher
72. delete words
73. BWT
74. Reverse BWT
75. Numeral system
76. print file
77. Look and say
78. Twin primes
79. Two Dice of A sides
80. Ring world
81. 100
82. ieee754
83. Text Compression
84. Timeout
85. odd lines
86. Inverse problem
87. ISBN2
88. Elias delta to Fibonacci
89. Sphenic Numbers
90. Trace characters
91. NOT gate
92. Bronspeak
93. packed UTF 9
94. Nothing
95. Print numbers _Revised_
96. Factorial
97. LED counter
98. Divide the rectangle
99. Bessel function J_0
100. permission list
101. leap year
102. postfix to infix
103. Palindromic Quine
104. Underload interpreter
105. Minimal scheme interpreter
106. reverse entire input
107. sum input
108. uudecode
109. Transpose
110. rot13
111. Number lines
112. Peak Detection
113. simple language
114. Multiply
115. Multiply long version
116. Drop first line
117. RPN calculator FIXED NO REALLY
118. Encoder decoder
119. Calculator
120. Permutations
121. cut string
122. Duplicate characters
123. Word frequency count FIXED
124. segs
125. stratum
126. exec
127. red black tree
128. checkers pattern
129. stable partition
130. nop
131. alternating harmonic series
132. Minimum Spanning Tree
133. Set symmetric difference
134. binary alnum symbol
135. Topological Sorting
136. Print out a lot _56K BEWARE_
137. 1000 digits
138. Morse decode
139. trivial encoder
140. embed
141. Runge Kutta
142. Day of the Week
143. Go capture
144. Table of divisors
145. putter golf for Ruby kaigi
146. Compound interest
147. Japanese numeral for Ruby kaigi
148. slope lines
149. duplicate certain lines _A_
150. duplicate certain lines _C_
151. N Queens
152. baker problem
153. count down
154. sum of square numbers
155. Brainfuck
156. Brainfuck FIXED
157. ASCII from 0x01 to 0x7f
158. swab
159. main
160. expand text
161. ASCII Stars
162. Binary Multiplication
163. Repeating Decimal
164. v
165. CALC fixed
166. 196 algorithm
167. Double Parity Vertical Redundancy Check
168. Simultaneous Equations FIXXED
169. Sierpinski Carpet
170. Easter
171. Monster group
172. irc
173. Derivative
174. Small Change
175. character subsets
176. Ranking
177. Ranking __REVENGE__
178. Alnum challenge
179. Church Numerals in ski
180. LCM of 1 to n
181. GCD of 1 to n
182. cal
183. X
184. Error
185. Whitespaceless Hello world
186. bubble sort
187. Y
188. Z
189. 4 in 3
190. XYZ
191. XYZ _Revised_
192. Polynomial Sequences
193. double back lines
194. Choose
195. apple lines
196. Maximum Cyclic Segment Sum
197. happy new year
198. Koch Island
199. Plot Circle
200. Up and Down
201. numwarp
202. FF PP ZZ
203. rotate lines reversely
204. Tak z _FIXED_
205. quote box
206. wave line
207. Walk the line
208. Helloworldless Hello world
209. number slide
210. hexagon 2nd fixed
211. numof 1 bits in 0 to 255
212. Directions of the star road
213. uniq words
214. capital and small letters
215. plastic constant
216. flower
217. apery constant
218. Gray code
219. Linear Congruences
220. simple octagon tesselation
221. log
222. PTR
223. nth root of v

News

• added Asymptote (thanks notogawa for suggestion!).
• added Maxima (thanks yshl!) and REBOL (thanks Jos'h!). I couldn't find the best suffixes for them. I couldn't find commonly used suffix for Maxima. REBOL's "r" was already used by R. If you know better suffixes for them, please let me know.
• added LMNtal.
• I forgot to mention this... There is a twitter account which reports the recent activities: http://twitter.com/mircbot. You may able to use its RSS as well.
• updated the interpreter of Universal Lambda. See the official site for the information how this changed. Also, added disassembled view of Universal Lambda. See this code for example.
• added Universal Lambda. Thanks flagitious!
• added Cyan (sorry, there seem to be no English docs).
• added Nemerle 0.9.3, QCL 0.6.3 with this patch, and Kite 1.0b6.
• added DOS using dosemu.
• now grass interpreter is OCaml version. Thanks YT!
• submission size limit (CONTENT_LENGTH) was relaxed from 10k to 20k.
• added Grass. Now we are using grass.rb. If you want to use faster implementation, please recommend me better implementations.
• ruby 1.8.7.
• allow more time for R (you have 2 sec for 3 test cases problems, 2.5 secs for 2 test cases, and 4 secs for 1 test case) since its invocation seems to take more than one second.
• updated execution server (Ubuntu edgy => gutsy). Many languages are updated (the detail will be described). Maybe now you can use standard input from /dev/fd/0. As usual :(, there may be several bugs. Please report me if you find bugs.
• made the system allow >65336 bytes outputs (this is the limit of linux pipe) for this this challenge. thanks yshl for investigating.
• added R (2.3.1). As of this time, I think we cannot use stdin. I'll investigate way to do...
• updated version of D (2.010), Io (20080209).
• added JVM, Groovy. Unfortunately, Scala was too slow in my attempts (it didn't solve hello world with 12sec timeout). (2008-02-17 added) Sorry, all groovy problem was considered as using exec. I'm not sure, but I've fixed the problem for easy ones.
• updated goruby's version using revision 15046.
• released caddy, a helper tool for golfers. You can test your solution, squeeze (remove comments or unnecessary whitespaces) your code, and submit the solution with this tool. Please unpack the package and check README for details. (I fixed a bug of database. Please re-download the package again if your caddy doesn't work correctly)
• updated goruby using this version. The most significant change might be the faster method_missing, which is provided by eban and flagitious. Thanks for the great contribution!
• added "name grep" to language summary page. This patch is provided by flagitious. Also, fixed binary escape for \x1a-\x1f, suggested by Pla. Thanks two guys!
• updated golfscript using new version and ruby1.9.
• added language summary page. You can access the page from language ranking. These information will be updated every 10 minutes. Uploaded the newest source code of this server.
• added goruby, which is a kind of joke program but is *officially* bundled in ruby-1.9.0-0 package (you can create the binary by "make golf"). I think there are two features: 1. Kernel#h method, which outputs Hello, world! 2. short method names: you can call Kernel#print using "pr". This feature is implemented by method_missing.
• added Vim as a language. You should make the buffer match the expected output given by each problem. The buffer is initialized using the standard input of the problem. For example, "ddZZ" can be the 4B solution of "delete first line" challenge.
• added GolfScript, a stack oriented esoteric language developped by flagitious. I'm pretty sure this language can be the #1 language of this site. Though the first purpose of this language might be golfing, its computation model is interesting, too. Thanks flagitious for this nice work!
• added Z80 as a language. Please check out the description of the environment made by mokehehe. Thanks mokehehe for suggesting and providing the environment!
• according to flagitious's suggestion, I relaxed timeout policy: you have 1 sec for 3 test cases problems, 1.5 secs for 2 test cases, and 3 secs for 1 test case.
• deploy new exec filter into all problems. It makes program ~10 times faster. Please tell me if you find some bugs.
• thanks all guys for submissions for tesing problem! I fixed A+'s suffix problem according to the suggestion.
• the ICFP contest is coming soon (July 20th)! I introduce this contest in this site because I think you golfers will enjoy this contest (especially, the contest in the last year contains many golfing challenges!). Join and enjoy the contests (but don't defeat me :)
• add Whirl.
• update version of DMD to 1.015 and fix VHDL's exec denied problem.
• add Pefunge.
• my email address was changed.
• add deadline feature. Authors of problems can select the deadline. After the deadline, the problem state becomes to "post-mortem" and all submitted source codes are opened. If you want to create closed problem, you can select no deadline option.
• add Postscript.
• add xgawk, m4, and update GHC to 6.6 from 6.4.
• expire all entries which use file save. I know this bug as mentioned the below, but i have not fixed yet. Please kindly don't submit entries using file save/load.
• changed the timeout of Java to 1.5sec (because its stratup is slow).

Please whisper me (shinichiro.hamaji _at_ gmail.com) if you found some problems. If you meet the following situations, it is the bug.

• can access network
• can be root
• can allocate >50MB memory
• meet stupid things

I know the following things:

• can load saved files. Basically, the saved files will be removed after executing submitted code. However, you can avoid this check by using system call directly. (I'll remove this bug if I have much spare time...)

Source code. Version informations.

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