DS&A

Exercises: Searching Trees

Before attempting these exercises, you should read the posts on depth-first search (DFS) and breadth-first search (BFS).

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• exercises, BFS, DFS, trees, search, algorithms

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Depth-First Search

Search problems vary in two ways: what do we want to search for, and what type of collection are we searching in?(1)

When we need a search algorithm, the data structure we want to search is more important than what we want to find. We could even say that linear search and binary search work on different data structures: linear search uses a list, and binary search uses a list which must be kept in order.(2)

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• DFS, stacks, trees, recursion, search, algorithms

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