Clone a Linked List with Random Pointers
Given a linked list where each node has two pointers: the first points to the next node in the list, and the second is a random pointer that can point to any node in the list or be null. Your task is to create a deep copy of this linked list and return the head of the copied list. The deep copy should not use references of the original nodes but create new nodes for the copy.
Example:
Input:
T = 1
Linked list: 1 2 2 0 3 4 4 4 5 1 -1
Output:
True
Explanation:
The input describes a linked list where each node is represented by a pair of value and random index. For instance, '1 2' means node value 1 with random pointer to the node at index 2. '-1' signifies the end of the list. If the linked list is successfully cloned, the output will be "True".
Constraints:
- 1 <= T <= 10
- 0 <= N <= 5 * 104
- -105 <= data <= 105 and data != -1
- -1 <= random index < N
Note:
You do not need to print anything; it has already been taken care of. Just implement the given function.
Create a deep copy of a linked list with random pointers without using references of original nodes.
Iterate through the original linked list and create a new node for each node in the list.
Store the m...read more
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