July 2018
Beginner
202 pages
5h 4m
English
Content preview from Beginning Java Data Structures and Algorithms
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Optimal Substructure
Optimal substructure is something we already covered when we introduced greedy algorithms. Recall that a problem exhibits optimal substructure, if an optimal solution to the problem contains within it, the optimal solutions to the sub-problems. There's a common pattern when trying to discover optimal substructure for a problem that can be explained as follows:
- Show that a solution to the problem consists of making a choice, which leaves one or more subproblems to be solved. This choice may not be obvious and it is likely that many choices have to be tried (contrary to a greedy approach, in which a single optimal choice is made).
- Supposing that you are given the choice that leads to an optimal solution, determine the ...
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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.