The Coding Puzzle 🧩
Last Week’s coding puzzle
Determine if a string has all unique characters.
Input : abcd10jk
Output : true
Input : hutg9mnd!nk9
Output : false
This week: Remove duplicates from an unsorted linked list.
If the linked list is 12->11->12->21->41->43
removeDuplicates() should convert the list to 12->11->21->41->43.
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