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feat(iterators): update hint comments

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mokou
2022-07-14 18:29:09 +02:00
parent 251d0dda34
commit 20024d40c5
6 changed files with 12 additions and 6 deletions
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7
info.toml
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@@ -802,7 +802,8 @@ case is a vector of integers and the failure case is a DivisionError.
The list_of_results function needs to return a vector of results.
See https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.collect for how
the `FromIterator` trait is used in `collect()`."""
the `FromIterator` trait is used in `collect()`. This trait is REALLY powerful! It
can make the solution to this exercise infinitely easier."""
[[exercises]]
name = "iterators4"
@@ -812,7 +813,9 @@ hint = """
In an imperative language, you might write a for loop that updates
a mutable variable. Or, you might write code utilizing recursion
and a match clause. In Rust you can take another functional
approach, computing the factorial elegantly with ranges and iterators."""
approach, computing the factorial elegantly with ranges and iterators.
Hint 2: Check out the `fold` and `rfold` methods!"""
[[exercises]]
name = "iterators5"