Language Details: Haskell

Code Jam 2012 Contestants using Haskell
Qualification Round
Used in 511 solutions by 167 contestants:
Round 1A
Used in 92 solutions by 44 contestants:
Round 1B
Used in 69 solutions by 36 contestants:
Round 1C
Used in 62 solutions by 27 contestants:
Round 2
Used in 26 solutions by 13 contestants:
Round 3
Used in 5 solutions by 3 contestants:

Submission Origin

United States (35 contestants)
Japan (27 contestants)
United Kingdom (11 contestants)
Canada (9 contestants)
Australia (7 contestants)
China (7 contestants)
Netherlands (6 contestants)
Russia (6 contestants)
France (5 contestants)
Germany (5 contestants)
Ukraine (5 contestants)
Italy (4 contestants)
Sweden (4 contestants)
Belgium (3 contestants)
Hungary (3 contestants)
India (3 contestants)
Norway (3 contestants)
Romania (3 contestants)
Spain (3 contestants)
Argentina (2 contestants)
Brazil (2 contestants)
Venezuela (2 contestants)
Bolivia (1 contestant)
Bulgaria (1 contestant)
Chile (1 contestant)
Croatia (1 contestant)
Cyprus (1 contestant)
Finland (1 contestant)
Greece (1 contestant)
Hong Kong (1 contestant)
Israel (1 contestant)
Kyrgyzstan (1 contestant)
Moldova (1 contestant)
New Zealand (1 contestant)
Pakistan (1 contestant)
Poland (1 contestant)
Portugal (1 contestant)
Puerto Rico (1 contestant)
South Africa (1 contestant)
Switzerland (1 contestant)
Taiwan (1 contestant)
Uruguay (1 contestant)