2010-01-14, 12:05 PM
(This post was last modified: 2010-01-14, 12:19 PM by hyperhopper.)
![[Image: 25gb9mt.jpg]](http://i48.tinypic.com/25gb9mt.jpg)
this is the floor plan of a museum
white = door,
black = wall
a guard doesnt like to turn. what is the minimum number of turns he has to make to walk through every room in the museum?
note, he can only walk in straight lines
