Thanks for the replies mozkomor, sorry I didn't see your first reply it never notified me.

Your explanation makes sense to me. I think the wording just tripped me up and I thought there would be subarrays given to us.

Thanks!

I'm having trouble understanding the mountain pass subarray. Are we given it?

I'm particularly confused by this:
"A mountain pass is defined as a subarray of the mountain array. The length of a mountain pass is the length of the subarray."