chore(iterators5): Minor formatting improvements.
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// iterators5.rs
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// iterators5.rs
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// Let's define a simple model to track Rustlings exercise progress. Progress
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// Let's define a simple model to track Rustlings exercise progress. Progress
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// will be modelled using a hash map. The name of the exercise is the key and
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// will be modelled using a hash map. The name of the exercise is the key and
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// the progress is the value. Two counting functions were created to count the
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// the progress is the value. Two counting functions were created to count the
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// imperative style for loops. Recreate this counting functionality using
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// imperative style for loops. Recreate this counting functionality using
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// iterators. Only the two iterator methods (count_iterator and
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// iterators. Only the two iterator methods (count_iterator and
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// count_collection_iterator) need to be modified.
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// count_collection_iterator) need to be modified.
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// Execute `rustlings hint
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// Execute `rustlings hint iterators5` for hints.
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// iterators5` for hints.
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//
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//
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// Make the code compile and the tests pass.
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// Make the code compile and the tests pass.
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