Round 1B: Decision Tree

1512 correct small sets and 1266 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (1455 sets)
Java (543 sets)
Python (308 sets)
C# (186 sets)
Ruby (56 sets)
Haskell (43 sets)
Perl (43 sets)
C (36 sets)
Pascal (27 sets)
PHP (22 sets)
Lisp (16 sets)
Scheme (10 sets)
Visual Basic (10 sets)
Scala (6 sets)
Groovy (4 sets)
JavaScript (3 sets)
Clojure (2 sets)
F# (2 sets)
Lua (2 sets)
MATLAB (2 sets)

Submission Origin

China (204 contestants)
Russia (188 contestants)
United States (177 contestants)
Poland (74 contestants)
India (73 contestants)
Japan (66 contestants)
Ukraine (60 contestants)
Brazil (44 contestants)
South Korea (38 contestants)
Canada (30 contestants)
Germany (30 contestants)
Romania (29 contestants)
United Kingdom (27 contestants)
Belarus (26 contestants)
Spain (23 contestants)
Argentina (22 contestants)
Taiwan (22 contestants)
Bulgaria (19 contestants)
Hong Kong (19 contestants)
Slovakia (19 contestants)
Czech Republic (18 contestants)
Hungary (18 contestants)
Netherlands (18 contestants)
South Africa (15 contestants)
Australia (14 contestants)
Colombia (14 contestants)
France (12 contestants)
Singapore (12 contestants)
Bangladesh (11 contestants)
Italy (11 contestants)
Egypt (10 contestants)
Israel (10 contestants)
Vietnam (10 contestants)
Indonesia (9 contestants)
Peru (9 contestants)
Lithuania (8 contestants)
Mexico (8 contestants)
Portugal (8 contestants)
Switzerland (8 contestants)
Denmark (7 contestants)
Finland (7 contestants)
Thailand (7 contestants)
Austria (6 contestants)
Serbia (6 contestants)
Sweden (6 contestants)
Armenia (5 contestants)
Georgia (5 contestants)
Greece (5 contestants)
Estonia (4 contestants)
Latvia (4 contestants)
New Zealand (4 contestants)
Turkey (4 contestants)
Belgium (3 contestants)
Croatia (3 contestants)
Macedonia (3 contestants)
Slovenia (3 contestants)
Venezuela (3 contestants)
Jordan (2 contestants)
Kazakhstan (2 contestants)
Moldova (2 contestants)
Philippines (2 contestants)
Algeria (1 contestant)
Chile (1 contestant)
Lebanon (1 contestant)
Nigeria (1 contestant)
Norway (1 contestant)
Puerto Rico (1 contestant)
Sri Lanka (1 contestant)