Qualification Round: Fair Warning

3312 correct small sets and 2469 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

Java (2257 sets)
C++ (1336 sets)
Python (1272 sets)
C# (227 sets)
Ruby (168 sets)
Haskell (138 sets)
C (99 sets)
Perl (57 sets)
PHP (32 sets)
Pascal (30 sets)
Lisp (22 sets)
Scheme (22 sets)
OCaml (17 sets)
Scala (9 sets)
Clojure (8 sets)
bc (7 sets)
Visual Basic (7 sets)
F# (6 sets)
MATLAB (6 sets)
Erlang (5 sets)
Shell (5 sets)
Go (4 sets)
Groovy (4 sets)
JavaScript (4 sets)
Prolog (4 sets)
Smalltalk (4 sets)
J (3 sets)
Lua (3 sets)
ActionScript (2 sets)
Factor (2 sets)
Maple (2 sets)
PARI/GP (2 sets)
D (1 set)
LOLCODE (1 set)
Piet (1 set)
WRAPL (1 set)

Submission Origin

China (795 contestants)
Russia (282 contestants)
United States (252 contestants)
Japan (232 contestants)
India (193 contestants)
Poland (107 contestants)
Ukraine (96 contestants)
South Korea (94 contestants)
Brazil (86 contestants)
Taiwan (82 contestants)
Canada (68 contestants)
Australia (51 contestants)
Germany (50 contestants)
France (43 contestants)
Vietnam (42 contestants)
United Kingdom (41 contestants)
Belarus (37 contestants)
Israel (37 contestants)
Thailand (36 contestants)
Bangladesh (34 contestants)
Hungary (34 contestants)
Argentina (33 contestants)
Indonesia (30 contestants)
Bulgaria (29 contestants)
Slovakia (28 contestants)
Romania (27 contestants)
Spain (27 contestants)
South Africa (26 contestants)
Netherlands (25 contestants)
Hong Kong (23 contestants)
Czech Republic (20 contestants)
Croatia (19 contestants)
Italy (18 contestants)
Sweden (18 contestants)
Egypt (17 contestants)
Kazakhstan (15 contestants)
Mexico (15 contestants)
Norway (14 contestants)
Peru (13 contestants)
Switzerland (12 contestants)
Turkey (12 contestants)
Lithuania (10 contestants)
Venezuela (10 contestants)
Finland (9 contestants)
Georgia (9 contestants)
Greece (9 contestants)
Latvia (9 contestants)
Moldova (9 contestants)
New Zealand (9 contestants)
Singapore (9 contestants)
Colombia (8 contestants)
Austria (7 contestants)
Denmark (7 contestants)
Portugal (7 contestants)
Slovenia (7 contestants)
Belgium (6 contestants)
Estonia (6 contestants)
Armenia (5 contestants)
Chile (5 contestants)
Philippines (5 contestants)
Azerbaijan (4 contestants)
Bolivia (4 contestants)
Lebanon (4 contestants)
Macedonia (4 contestants)
Malaysia (4 contestants)
Sri Lanka (4 contestants)
Iran (3 contestants)
Ireland (3 contestants)
Kyrgyzstan (3 contestants)
Palestinian Territory (3 contestants)
Cuba (2 contestants)
Iceland (2 contestants)
Nigeria (2 contestants)
Serbia (2 contestants)
Bouvet Island (1 contestant)
Cambodia (1 contestant)
Congo (1 contestant)
Dominican Republic (1 contestant)
Jordan (1 contestant)
Malta (1 contestant)
Mongolia (1 contestant)
Namibia (1 contestant)
Trinidad and Tobago (1 contestant)
Tunisia (1 contestant)