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[binary-search-tree] Four SVG graphs #2285

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30 changes: 13 additions & 17 deletions exercises/binary-search-tree/description.md
Original file line number Diff line number Diff line change
Expand Up @@ -19,29 +19,25 @@ All data in the left subtree is less than or equal to the current node's data, a

For example, if we had a node containing the data 4, and we added the data 2, our tree would look like this:

4
/
2
[A graph with root node 4 and a single child node 2.][4-2]

If we then added 6, it would look like this:

4
/ \
2 6
[A graph with root node 4 and two child nodes 2 and 6.][4-2-6]

If we then added 3, it would look like this

4
/ \
2 6
\
3
[A graph with root node 4, two child nodes 2 and 6, and a grandchild node 3.][4-2-6-3]

And if we then added 1, 5, and 7, it would look like this

4
/ \
/ \
2 6
/ \ / \
1 3 5 7
[A graph with root node 4, two child nodes 2 and 6, and four grandchild nodes 1, 3, 5 and 7.][4-2-6-1-3-5-7]

## Credit

The graphs are made by [habere-et-dispertire](https://exercism.org/profiles/habere-et-dispertire) using [PGF/TikZ](https://en.wikipedia.org/wiki/PGF/TikZ) by Till Tantau.
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[4-2]: https://exercism-v3-icons.s3.eu-west-2.amazonaws.com/images/exercises/binary-search-tree/tree-4-2.svg
[4-2-6]: https://exercism-v3-icons.s3.eu-west-2.amazonaws.com/images/exercises/binary-search-tree/tree-4-2-6.svg
[4-2-6-3]: https://exercism-v3-icons.s3.eu-west-2.amazonaws.com/images/exercises/binary-search-tree/tree-4-2-6-3.svg
[4-2-6-1-3-5-7]: https://exercism-v3-icons.s3.eu-west-2.amazonaws.com/images/exercises/binary-search-tree/tree-4-2-6-1-3-5-7.svg