Round 3: Portal

159 correct small sets and 123 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (209 sets)
Java (39 sets)
C# (12 sets)
Pascal (7 sets)
Python (5 sets)
C (4 sets)
Lisp (3 sets)
Visual Basic (2 sets)
Haskell (1 set)

Submission Origin

Russia (33 contestants)
United States (24 contestants)
China (14 contestants)
Japan (10 contestants)
Poland (8 contestants)
Netherlands (6 contestants)
Ukraine (6 contestants)
Canada (5 contestants)
Brazil (4 contestants)
Singapore (4 contestants)
Argentina (3 contestants)
Germany (3 contestants)
Romania (3 contestants)
Belarus (2 contestants)
Egypt (2 contestants)
Hungary (2 contestants)
Indonesia (2 contestants)
South Korea (2 contestants)
Taiwan (2 contestants)
United Kingdom (2 contestants)
Australia (1 contestant)
Bolivia (1 contestant)
Bulgaria (1 contestant)
Denmark (1 contestant)
Hong Kong (1 contestant)
India (1 contestant)
Israel (1 contestant)
Italy (1 contestant)
Kazakhstan (1 contestant)
Lithuania (1 contestant)
Mexico (1 contestant)
New Zealand (1 contestant)
Portugal (1 contestant)
Slovakia (1 contestant)
South Africa (1 contestant)
Spain (1 contestant)
Sri Lanka (1 contestant)
Sweden (1 contestant)
Switzerland (1 contestant)
Thailand (1 contestant)
Venezuela (1 contestant)
Vietnam (1 contestant)