Round 1B: RPI

4532 correct small sets and 4408 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (4730 sets)
Java (1745 sets)
Python (1081 sets)
C# (464 sets)
C (324 sets)
Ruby (182 sets)
Pascal (74 sets)
PHP (66 sets)
Perl (52 sets)
Haskell (51 sets)
Scala (26 sets)
Visual Basic (21 sets)
Lisp (20 sets)
JavaScript (13 sets)
OCaml (12 sets)
Go (9 sets)
Clojure (8 sets)
F# (7 sets)
D (6 sets)
Groovy (6 sets)
MATLAB (5 sets)
ActionScript (4 sets)
CoffeeScript (4 sets)
Lua (4 sets)
Objective-C (4 sets)
TCL (4 sets)
Processing (2 sets)
Prolog (2 sets)
Shell (2 sets)
Whitespace (2 sets)
POV-Ray (1 set)
PowerShell (1 set)

Submission Origin

China (660 contestants)
India (536 contestants)
United States (394 contestants)
Russia (350 contestants)
Japan (238 contestants)
Ukraine (151 contestants)
Poland (143 contestants)
Brazil (130 contestants)
Taiwan (90 contestants)
France (88 contestants)
Germany (88 contestants)
Canada (83 contestants)
South Korea (83 contestants)
Romania (77 contestants)
Egypt (65 contestants)
United Kingdom (65 contestants)
Thailand (64 contestants)
Israel (58 contestants)
Indonesia (57 contestants)
Bangladesh (56 contestants)
Australia (53 contestants)
Vietnam (53 contestants)
Hong Kong (49 contestants)
Hungary (47 contestants)
Spain (46 contestants)
Argentina (43 contestants)
Belarus (43 contestants)
Slovakia (40 contestants)
Colombia (35 contestants)
Bulgaria (34 contestants)
Mexico (34 contestants)
South Africa (31 contestants)
Iran (28 contestants)
Czech Republic (24 contestants)
Netherlands (24 contestants)
Turkey (22 contestants)
Lithuania (21 contestants)
Peru (21 contestants)
Sweden (21 contestants)
Croatia (19 contestants)
Italy (19 contestants)
Portugal (19 contestants)
Greece (18 contestants)
Latvia (18 contestants)
Singapore (17 contestants)
Switzerland (17 contestants)
New Zealand (16 contestants)
Sri Lanka (15 contestants)
Venezuela (15 contestants)
Philippines (14 contestants)
Kazakhstan (13 contestants)
Pakistan (13 contestants)
Serbia (13 contestants)
Belgium (10 contestants)
Georgia (10 contestants)
Norway (10 contestants)
Macedonia (9 contestants)
Austria (8 contestants)
Finland (8 contestants)
Chile (7 contestants)
Denmark (7 contestants)
Armenia (6 contestants)
Kyrgyzstan (6 contestants)
Lebanon (6 contestants)
Estonia (5 contestants)
Ireland (5 contestants)
Moldova (5 contestants)
Morocco (5 contestants)
Slovenia (5 contestants)
Dominican Republic (4 contestants)
Bosnia and Herzegovina (3 contestants)
Malaysia (3 contestants)
Mongolia (3 contestants)
Uruguay (3 contestants)
Afghanistan (2 contestants)
Bolivia (2 contestants)
Ecuador (2 contestants)
Guatemala (2 contestants)
Iceland (2 contestants)
Jordan (2 contestants)
Algeria (1 contestant)
Antigua & Barbuda (1 contestant)
Benin (1 contestant)
Cameroon (1 contestant)
Congo (1 contestant)
Costa Rica (1 contestant)
Cuba (1 contestant)
Djibouti (1 contestant)
Ghana (1 contestant)
Ivory Coast (1 contestant)
Kenya (1 contestant)
Luxembourg (1 contestant)
Malta (1 contestant)
Nicaragua (1 contestant)
Nigeria (1 contestant)
Rwanda (1 contestant)
Saudi Arabia (1 contestant)
Sudan (1 contestant)
Syria (1 contestant)
Tunisia (1 contestant)
Uzbekistan (1 contestant)