Round 2: A.I. War

261 correct small sets and 87 correct large sets. View problem statement or contest analysis.

Languages

C++ (231 sets)
Java (59 sets)
Python (27 sets)
C# (11 sets)

C (9 sets)
Pascal (3 sets)
OCaml (2 sets)
Ruby (2 sets)

Go (1 set)
Haskell (1 set)
Lua (1 set)
Perl (1 set)

Russia (48 contestants)
China (36 contestants)
United States (32 contestants)
Poland (12 contestants)
Brazil (11 contestants)
Japan (11 contestants)
Belarus (8 contestants)
South Korea (7 contestants)
Canada (6 contestants)
Germany (6 contestants)
Taiwan (6 contestants)
Ukraine (6 contestants)
Hong Kong (5 contestants)
Hungary (5 contestants)
France (4 contestants)
Slovakia (4 contestants)

United Kingdom (4 contestants)
Australia (3 contestants)
Indonesia (3 contestants)
Lithuania (3 contestants)
Netherlands (3 contestants)
South Africa (3 contestants)
Argentina (2 contestants)
Croatia (2 contestants)
Finland (2 contestants)
India (2 contestants)
Iran (2 contestants)
Israel (2 contestants)
Romania (2 contestants)
Spain (2 contestants)
Sweden (2 contestants)
Thailand (2 contestants)

Austria (1 contestant)
Bangladesh (1 contestant)
Bolivia (1 contestant)
Czech Republic (1 contestant)
Dominican Republic (1 contestant)
Estonia (1 contestant)
Kazakhstan (1 contestant)
Latvia (1 contestant)
Malaysia (1 contestant)
Portugal (1 contestant)
Serbia (1 contestant)
Singapore (1 contestant)
Slovenia (1 contestant)
Switzerland (1 contestant)
Vietnam (1 contestant)