H-99: Ninety-Nine Haskell Problems

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 lisp>,<example in Haskell>,<solution in haskell> and <description of implementation> fields. Then be sure to update the scoreboard on this page to indicate that we have a solution!

The problems

These problems have been split into 10 parts, for ease of access.

• Questions 1 to 10
• Questions 11 to 20
• Questions 21 to 30
• Questions 31 to 40
• Questions 41 to 50
• Questions 51 to 60
• Questions 61 to 70
• Questions 71 to 80
• Questions 81 to 90
• Questions 91 to 100

Scoreboard

Scoreboard

Problem	Lisp solution?	Haskell Solution?
1	Yes	Yes
2	Yes	Yes
3	Yes	Yes
4	Yes	Yes
5	Yes	Yes
6	Yes	Yes
7	Yes	Yes
8	Yes	Yes
9	Yes	Yes
10	Yes	Yes
11	Yes	Yes
12	No	Yes
13	No	Yes
14	Yes	Yes
15	Yes	Yes
16	No	Yes
17	Yes	Yes
18	No	Yes
19	No	Yes
20	Yes	Yes
21	Yes	Yes
22	Yes	Yes
23	Yes	No
24	Yes	No
25	Yes	No
26	Yes	Yes
27	Yes	No
28	Yes	No
29	Yes	No
30	Yes	No
31	No	No
32	No	No
33	No	No
34	No	No
35	No	No
36	No	No
37	No	No
38	No	No
39	No	No
40	No	No
41	No	No
42	No	No
43	No	No
44	No	No
45	No	No
46	No	No
47	No	No
48	No	No
49	No	Yes
50	No	No
51	No	No
52	No	No
53	No	No
54	No	No
55	No	No
56	No	No
57	No	No
58	No	No
59	No	No
60	No	No
61	No	No
62	No	No
63	No	No
64	No	No
65	No	No
66	No	No
67	No	No
68	No	No
69	No	No
70	No	No
71	No	No
72	No	No
73	No	No
74	No	No
75	No	No
76	No	No
77	No	No
78	No	No
79	No	No
80	No	No
81	No	No
82	No	No
83	No	No
84	No	No
85	No	No
86	No	No
87	No	No
88	No	No
89	No	No
90	No	No
91	No	No
92	No	No
93	No	No
94	No	No
95	No	No
96	No	No
97	No	No
98	No	No
99	No	No