H-99: Ninety-Nine Haskell Problems: Difference between revisions

Revision as of 20:25, 15 July 2010

These are Haskell translations of Ninety-Nine Lisp Problems, which are themselves translations of Ninety-Nine Prolog Problems.

If you want to work on one of these, put your name in the block so we know someone's working on it. Then, change n in your block to the appropriate problem number, and fill in the <Problem description>,<example in Haskell>,<solution in haskell> and <description of implementation> fields. Then be sure to update the status on this page to indicate that we have a solution!

The problems

These problems have been split into 11 parts, for ease of access.

Questions 1 to 10: Lists
Questions 11 to 20: Lists, continued
Questions 21 to 28: Lists again
Questions 31 to 41: Arithmetic
Questions 46 to 50: Logic and codes
Questions 54A to 60: Binary trees
Questions 61 to 69: Binary trees, continued
Questions 70B to 73: Multiway trees
Questions 80 to 89: Graphs
Questions 90 to 94: Miscellaneous problems
Questions 95 to 99: Miscellaneous problems, continued

(Though the problems number from 1 to 99, there are some gaps and some additions marked with letters. There are actually only 88 problems.)

Solutions

Known solutions are listed at 99 questions/Solutions. We still lack Haskell solutions to problems 80-89 and 94. Please update this page if you find solutions to these. Some of those we have could do with cleaning up or additional solutions.

References

P-99: Ninety-Nine Prolog Problems contains Prolog solutions to all the problems.
L-99: Ninety-Nine Lisp Problems contains Lisp solutions to problems 1-11, 14, 15, 17 and 20-28.
99 Problems in Perl 6 has an increasing number of Perl 6 solutions (running on Pugs).

@@ Line 22: / Line 22: @@
 * [[99_questions/95_to_99|Questions 95 to 99]]: Miscellaneous problems, continued
-(Though the problems number from 1 to 99, there are some gaps and some additions marked with letters.
+(Though the problems number from 1 to 99, there are some gaps and some additions marked with letters. There are actually only 88 problems.)
-There are actually only 88 problems.)
 == Solutions ==
-The solutions to the first 60 problems are listed on [[99 questions/Solutions]]. Other solutions are embedded in the question pages themselves.
+Known solutions are listed at [[99 questions/Solutions]]. We still lack Haskell solutions to problems 80-89 and 94. Please update this page if you find solutions to these. Some of those we have could do with cleaning up or additional solutions.
-== Status ==
+== References ==
 * [https://prof.ti.bfh.ch/hew1/informatik3/prolog/p-99/ P-99: Ninety-Nine Prolog Problems] contains Prolog solutions to all the problems.
 * [http://www.ic.unicamp.br/~meidanis/courses/mc336/2006s2/funcional/L-99_Ninety-Nine_Lisp_Problems.html L-99: Ninety-Nine Lisp Problems] contains Lisp solutions to problems 1-11, 14, 15, 17 and 20-28.
 * [http://www.oreillynet.com/onlamp/blog/2006/12/99_problems_in_perl_6.html 99 Problems in Perl 6] has an increasing number of Perl 6 solutions (running on [http://www.pugscode.org/ Pugs]).
-* We still lack Haskell solutions to problems 80-89 and 94. (Please edit this list if you add any solutions.) Some of those we have could do with cleaning up or additional solutions.
 [[Category:Tutorials]]
 [[Category:Code]]