Final: X Marks the Spot

6 correct small sets and 1 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (5 sets)
Java (2 sets)

Submission Origin

Belarus (1 contestant)
Canada (1 contestant)
Hong Kong (1 contestant)
Poland (1 contestant)
Russia (1 contestant)
Ukraine (1 contestant)