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-rw-r--r--exercises/vecs/README.md2
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diff --git a/exercises/vecs/README.md b/exercises/vecs/README.md
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@@ -13,3 +13,5 @@ the other useful data structure, hash maps, later.
## Further information
- [Storing Lists of Values with Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)
+- [`iter_mut`](https://doc.rust-lang.org/std/primitive.slice.html#method.iter_mut)
+- [`map`](https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.map)