Problem Solving

试题详情

文章:

题目:

Pat will walk from Intersection X to Intersection Y along a route that is confined to the square grid of four streets and three avenues shown in the map above. How many routes from X to Y can Pat take that have the minimum possible length?

选项:

A、68
B、10
C、14
D、16

答案:

C

提问:

请问一下这道题如何解答。谢谢
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提问:

老师这道题怎么走不都只有一种长度吗??哪里有最小?
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