NOI 2013 (0/300)

Contest Description
NOI 2013. Task 2 is bugged in original contest :)
Scoreboard
Problem ID Your Score Title Source Problem Type
globalwarming
N/A
Global Warming NOI 2013 Batch
diesel
N/A
diesel NOI 2013 Batch
ferries
N/A
ferries NOI 2013 Batch