Round 1A: Collecting Cards

390 correct small sets and 311 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (506 sets)
Java (82 sets)
Python (44 sets)
C# (19 sets)
Pascal (14 sets)
C (12 sets)
Mathematica (4 sets)
Haskell (3 sets)
Scala (3 sets)
F# (2 sets)
Lua (2 sets)
OCaml (2 sets)
Perl (2 sets)
Ruby (2 sets)
Scheme (2 sets)
Shell (2 sets)

Submission Origin

China (90 contestants)
United States (79 contestants)
Russia (27 contestants)
Japan (26 contestants)
Canada (17 contestants)
Brazil (14 contestants)
South Korea (13 contestants)
Poland (10 contestants)
India (9 contestants)
Bangladesh (8 contestants)
Argentina (7 contestants)
Taiwan (7 contestants)
Egypt (6 contestants)
Hong Kong (5 contestants)
United Kingdom (5 contestants)
Australia (4 contestants)
Croatia (4 contestants)
Indonesia (4 contestants)
Singapore (4 contestants)
Slovakia (4 contestants)
France (3 contestants)
Mexico (3 contestants)
Peru (3 contestants)
Ukraine (3 contestants)
Belarus (2 contestants)
Bulgaria (2 contestants)
Greece (2 contestants)
Kazakhstan (2 contestants)
Lithuania (2 contestants)
Netherlands (2 contestants)
New Zealand (2 contestants)
Norway (2 contestants)
Romania (2 contestants)
Sweden (2 contestants)
Armenia (1 contestant)
Austria (1 contestant)
Czech Republic (1 contestant)
Finland (1 contestant)
Italy (1 contestant)
Latvia (1 contestant)
Portugal (1 contestant)
Slovenia (1 contestant)
Spain (1 contestant)
Sri Lanka (1 contestant)
Thailand (1 contestant)
Turkey (1 contestant)
U.S. Virgin Islands (1 contestant)
Venezuela (1 contestant)
Vietnam (1 contestant)