Round 1A: Cruise Control

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

Compact solutions

Solved in...

C++ (66 sets)
Python (9 sets)
Java (6 sets)
C# (4 sets)
D (1 set)
Ruby (1 set)

Submission Origin

China (13 contestants)
United States (9 contestants)
Japan (8 contestants)
Russia (6 contestants)
Taiwan (4 contestants)
Ukraine (4 contestants)
Australia (2 contestants)
Canada (2 contestants)
Poland (2 contestants)
Slovakia (2 contestants)
Thailand (2 contestants)
Belarus (1 contestant)
Egypt (1 contestant)
Germany (1 contestant)
Hong Kong (1 contestant)
Iran (1 contestant)
Israel (1 contestant)
Lithuania (1 contestant)
Netherlands (1 contestant)
South Korea (1 contestant)
Sri Lanka (1 contestant)
United Kingdom (1 contestant)