Remove duplicates from linked list - leetcode

1. How do you find unique elements in a Linkedlist?
2. Does std :: sort remove duplicates?
3. Does LinkedHashSet remove duplicates?
4. Does LinkedList accept duplicates?
5. How to remove duplicate nodes in an unsorted linked list in Python?
6. How do you remove duplicates from unsorted arrays in C++?
7. How do I remove multiple elements from a list in C++?
8. Does LinkedList accept duplicates?

How do you find unique elements in a Linkedlist?

Method 1 (Using Two Loops): This is the simple way where two loops are used. Outer loop is used to pick the elements one by one and inner loop compares the picked element with rest of the elements. If Element is not equal to other elements then Print that Element.

Does std :: sort remove duplicates?

It does not delete all the duplicate elements, but it removes duplicacy by just replacing those elements by the next element present in the sequence which is not duplicate to the current element being replaced.

Does LinkedHashSet remove duplicates?

Every element in a set must be unique. We can simply add elements to a set, and finally we will get a set of elements with duplicates removed automatically. HashSet, LinkedHashSet and TreeSet are the implementations of Set interface which does not allow duplicate elements.

Does LinkedList accept duplicates?

4) ArrayList and LinkedList also allow duplicates and null, unlike any other List implementation e.g. Vector.

How to remove duplicate nodes in an unsorted linked list in Python?

Given the unsorted linked list with duplicate nodes, this python program removes the duplicate nodes in O(n) time. The time complexity for removing duplicate nodes is O(n) because, I used set() which stores unique nodes and searching takes O(1). So, O(n) is for traversing the linked list where n is size of linked list.

How do you remove duplicates from unsorted arrays in C++?

Steps to delete the duplicate elements from unsorted array

Step 1: Input the size of an array from the user and store into the size variable. Step 2: Use for loop to read the elements of an array and store in arr[i] variable. Step 3: To get the duplicate elements from an array we need to use two for loops.

How do I remove multiple elements from a list in C++?

Using list::erase(): The purpose of this function is to remove the elements from list. Single or multiple contiguous elements in range can be removed using this function. This function takes 2 arguments, start iterator and end iterator. Time complexity : O(n) where (n is size of list).

Does LinkedList accept duplicates?

4) ArrayList and LinkedList also allow duplicates and null, unlike any other List implementation e.g. Vector.