May 2016
Intermediate to advanced
256 pages
5h 53m
English
Content preview from Grokking AlgorithmsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 7. Dijkstra’s algorithm
In this chapter
- We continue the discussion of graphs, and you learn about weighted graphs: a way to assign more or less weight to some edges.
- You learn Dijkstra’s algorithm, which lets you answer “What’s the shortest path to X?” for weighted graphs.
- You learn about cycles in graphs, where Dijkstra’s algorithm doesn’t work.
In the last chapter, you figured out a way to get from point A to point B.
It’s not necessarily the fastest path. It’s the shortest path, because it has the least number of segments (three segments). ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.