Round 1A: Rotate

2076 correct small sets and 1855 correct large sets. View problem statement or contest analysis.

Languages

C++ (2392 sets)
Java (641 sets)
Python (380 sets)
C# (158 sets)
C (116 sets)
Pascal (50 sets)
Ruby (42 sets)
Haskell (41 sets)

Perl (30 sets)
PHP (15 sets)
Scala (12 sets)
Visual Basic (12 sets)
OCaml (6 sets)
MATLAB (5 sets)
Clojure (4 sets)
Javascript (4 sets)

Lisp (4 sets)
Scheme (3 sets)
F# (2 sets)
Go (2 sets)
Groovy (2 sets)
Shell (2 sets)
Rexx (1 set)
Starx (1 set)

China (529 contestants)
United States (206 contestants)
Japan (152 contestants)
India (134 contestants)
Russia (122 contestants)
Brazil (85 contestants)
Canada (65 contestants)
Taiwan (59 contestants)
Australia (55 contestants)
South Korea (54 contestants)
Poland (41 contestants)
Ukraine (38 contestants)
Bangladesh (34 contestants)
Indonesia (28 contestants)
Argentina (27 contestants)
Thailand (27 contestants)
Vietnam (26 contestants)
Egypt (22 contestants)
Hong Kong (21 contestants)
France (20 contestants)
Israel (19 contestants)
Mexico (19 contestants)
Belarus (17 contestants)
Germany (17 contestants)
United Kingdom (17 contestants)
Spain (14 contestants)
Italy (12 contestants)

Bulgaria (11 contestants)
Colombia (11 contestants)
Venezuela (11 contestants)
New Zealand (10 contestants)
Peru (10 contestants)
Romania (10 contestants)
Hungary (9 contestants)
Netherlands (8 contestants)
Slovakia (8 contestants)
Turkey (8 contestants)
Singapore (7 contestants)
Norway (6 contestants)
Serbia (6 contestants)
Bolivia (5 contestants)
Czech Republic (5 contestants)
Kazakhstan (5 contestants)
Lithuania (5 contestants)
Chile (4 contestants)
Georgia (4 contestants)
Latvia (4 contestants)
Malaysia (4 contestants)
Portugal (4 contestants)
South Africa (4 contestants)
Sweden (4 contestants)
Austria (3 contestants)
Azerbaijan (3 contestants)
Croatia (3 contestants)

Finland (3 contestants)
Greece (3 contestants)
Lebanon (3 contestants)
Moldova (3 contestants)
Sri Lanka (3 contestants)
Denmark (2 contestants)
Dominican Republic (2 contestants)
Estonia (2 contestants)
Iran (2 contestants)
Kyrgyzstan (2 contestants)
Morocco (2 contestants)
Philippines (2 contestants)
Slovenia (2 contestants)
Armenia (1 contestant)
Bouvet Island (1 contestant)
Cuba (1 contestant)
Guatemala (1 contestant)
Jordan (1 contestant)
Nicaragua (1 contestant)
Pakistan (1 contestant)
Palestinian Territory (1 contestant)
Switzerland (1 contestant)
Trinidad and Tobago (1 contestant)
Tunisia (1 contestant)
Turkmenistan (1 contestant)
U.S. Virgin Islands (1 contestant)