organization issue in Chapter 5, page 10

[bruisedsamurai]

Second paragraph talks about adjacency matrix whereas adjacency matrix topic's heading is next and isn't yet talked about.

[jeffgerickson]

An adjacency array (described in the second paragraph on page 10) is not the same as an adjacency matrix, despite the similarity of the names.

[bruisedsamurai]

Maybe then it's a case of typo

[echuber2]

I second that it's probably a typo; it probably should say "One common implementation of adjacency lists is the adjacency array."

[echuber2]

For what it's worth, bump @jeffgerickson