Round 3: Fence

250 correct small sets and 77 correct large sets. View problem statement or contest analysis.

Languages

C++ (277 sets)
Java (36 sets)
Python (4 sets)

C# (3 sets)
Pascal (3 sets)
C (2 sets)

China (55 contestants)
Russia (50 contestants)
Poland (21 contestants)
Ukraine (21 contestants)
Japan (16 contestants)
Belarus (10 contestants)
United States (10 contestants)
South Korea (8 contestants)
Hong Kong (6 contestants)
Canada (5 contestants)
Brazil (4 contestants)
Bulgaria (4 contestants)

Slovakia (4 contestants)
Vietnam (4 contestants)
Bangladesh (3 contestants)
Thailand (3 contestants)
Argentina (2 contestants)
Georgia (2 contestants)
Spain (2 contestants)
Sweden (2 contestants)
Taiwan (2 contestants)
United Kingdom (2 contestants)
Denmark (1 contestant)
Germany (1 contestant)

India (1 contestant)
Indonesia (1 contestant)
Iran (1 contestant)
Kazakhstan (1 contestant)
Latvia (1 contestant)
Lithuania (1 contestant)
Malaysia (1 contestant)
Netherlands (1 contestant)
Norway (1 contestant)
Romania (1 contestant)
South Africa (1 contestant)
Switzerland (1 contestant)