Iterators Exercises

Level	Name	Tags
Easy	Reverse a String	iterators strings functions
Easy	Iterator Basics	iterators pdc-w4 iter into_iter
Easy	Map and Filter	iterators map filter pdc-w4 combinators
Easy	Palindrome Check	iterators strings
Easy	Word Count	iterators strings hashmap
Easy	wc: Count Lines, Words, and Characters	iterators strings tuples unix-tools
Easy	head & tail: First and Last N Lines	iterators unix-tools slices
Easy	cat -n: Number the Lines	iterators unix-tools formatting
Medium	Fold and Reduce	iterators fold reduce aggregation
Medium	Collecting Into Different Types	iterators hashset hashmap collect
Medium	Iterator Chaining	iterators combinators chaining
Medium	grep: Filter Matching Lines	iterators unix-tools borrowing
Medium	cut: Extract a Field	iterators unix-tools result option
Hard	Implementing Custom Iterators	iterators impl-iterator traits