World Finals: Ping Pong Balls

92 correct small sets and 18 correct large sets. View problem statement or contest analysis.

Languages

C++ (84 sets)
Java (21 sets)

Python (2 sets)
C (1 set)

C# (1 set)
Haskell (1 set)

China (18 contestants)
Russia (18 contestants)
United States (14 contestants)
Japan (8 contestants)
Poland (6 contestants)
Ukraine (5 contestants)
Argentina (2 contestants)
Belarus (2 contestants)

Hong Kong (2 contestants)
Netherlands (2 contestants)
South Korea (2 contestants)
Sweden (2 contestants)
United Kingdom (2 contestants)
Australia (1 contestant)
Bulgaria (1 contestant)
Canada (1 contestant)

India (1 contestant)
Italy (1 contestant)
Lithuania (1 contestant)
Mexico (1 contestant)
Romania (1 contestant)
Singapore (1 contestant)