Remove duplicates from sorted list ii interviewbit Solution java

InterviewBit: #5 Remove Duplicates from Sorted List II

Programming / Linked Lists / Remove Duplicates From Sorted List II

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Problem Statement:

Remove Duplicates from Sorted List II - InterviewBit

Remove Duplicates from Sorted List II: Given a sorted linked list, delete all nodes that have duplicate numbers…

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remove duplicates from sorted array
java by SidPotti
on Jun 18 2020 Comment
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How to Remove Duplicates from a Linked List?

To remove duplicates from a linked list, traverse a linked list from the head node. While traversing compare each node value with its next node value. If the value is same for both the nodes then skip the next node and point the next pointer of the current node to the one after the next node.

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//Remove duplicates from a linked list
public Node removeDuplicates[Node head] {
Node temp = head;
//Traverse a linked list
while[temp != null && temp.next != null] {
//Compare data of the node to it's next node
if[temp.data == temp.next.data] {
//Point next node pointer
temp.next = temp.next.next;
} else {
temp = temp.next;
}
}
return head;
}

The time complexity of this approach is O[n] and it’s space complexity is O[1].

Find the middle element of a linked list

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