校园导航

设计学校的平面图，至少包括10个以上的场所，每两个场所间可以有不同的路，且路长也可能不同，找出从某个场所到达另一场所的最佳路径（最短路径）。

-Campus navigation

Design your school plan, including at least more than 10 places, one of the two places can have different between the way, and road long can also be different, find out from a place to another place at the time of the best path (the shortest path).