Final: Xeno-archaeology

22 correct small sets and 9 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (25 sets)
Java (3 sets)
D (2 sets)
C# (1 set)

Submission Origin

Russia (5 contestants)
China (3 contestants)
Poland (3 contestants)
Japan (2 contestants)
Ukraine (2 contestants)
United States (2 contestants)
Bulgaria (1 contestant)
Canada (1 contestant)
Czech Republic (1 contestant)
Hong Kong (1 contestant)
Slovakia (1 contestant)