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Remove duplicates from an unsorted linked list

Title: Remove duplicates from an unsorted linked list Source: www.geeksforgeeks.org Write a removeDuplicates() function which takes a list and deletes any duplicate nodes from the list. The list is not sorted. For example if the linked list is 12->11->12->21->41->43->21 then removeDuplicates() should convert the list to 12->11->21->41->43. METHOD 1 (Using two loops) This is the ...