743 . Hexagonal Parcels
Description
Input Format
Output Format
Sample Input 1
4 B . . C . . . . C . A . . C . . A A . . . . . A . . . . . . . D D . . . . 0
Sample Output 1
You have to buy 4 parcels.
Hints
Problem Source
Migrated from old NTUJ.
cepc 2007
Subtasks
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