Round 2: World Cup 2010

1456 correct small sets and 848 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (1702 sets)
Java (263 sets)
Python (134 sets)
C# (55 sets)
Pascal (48 sets)
C (44 sets)
Haskell (19 sets)
Perl (9 sets)
Ruby (8 sets)
OCaml (7 sets)
PHP (6 sets)
Clojure (2 sets)
Lisp (2 sets)
Lua (2 sets)
Objective-C (2 sets)
F# (1 set)

Submission Origin

China (360 contestants)
Russia (175 contestants)
Japan (79 contestants)
United States (75 contestants)
Poland (71 contestants)
Ukraine (63 contestants)
India (52 contestants)
Taiwan (42 contestants)
Brazil (41 contestants)
South Korea (36 contestants)
Belarus (25 contestants)
Canada (24 contestants)
Slovakia (23 contestants)
Bulgaria (20 contestants)
Vietnam (19 contestants)
Australia (18 contestants)
Bangladesh (17 contestants)
Indonesia (17 contestants)
Argentina (16 contestants)
Germany (16 contestants)
Hong Kong (16 contestants)
Netherlands (16 contestants)
Israel (15 contestants)
Thailand (14 contestants)
Hungary (13 contestants)
Romania (13 contestants)
United Kingdom (12 contestants)
Georgia (9 contestants)
South Africa (9 contestants)
Spain (9 contestants)
Egypt (8 contestants)
France (8 contestants)
Norway (8 contestants)
Lithuania (7 contestants)
Portugal (7 contestants)
Serbia (7 contestants)
Sweden (7 contestants)
Czech Republic (6 contestants)
Latvia (6 contestants)
Singapore (6 contestants)
Croatia (5 contestants)
Kazakhstan (5 contestants)
Mexico (5 contestants)
Austria (4 contestants)
Finland (4 contestants)
Italy (4 contestants)
Moldova (4 contestants)
Peru (4 contestants)
Slovenia (4 contestants)
Colombia (3 contestants)
Denmark (3 contestants)
Iran (3 contestants)
Switzerland (3 contestants)
Venezuela (3 contestants)
Bolivia (2 contestants)
Greece (2 contestants)
Kyrgyzstan (2 contestants)
Lebanon (2 contestants)
New Zealand (2 contestants)
Sri Lanka (2 contestants)
Armenia (1 contestant)
Azerbaijan (1 contestant)
Chile (1 contestant)
Ireland (1 contestant)
Malaysia (1 contestant)