700004. Print Linked List
Print Linked List
Slug: print-linked-list-elements Difficulty: Basic Id: 700004 Topic Tags: Linked List, Data Structures Company Tags: None
Summary
The problem is about printing the elements of a linked list. The key concepts involved are linked lists and basic data structures.
Detailed Explanation
The given problem statement does not provide any specific information about how to print the linked list, but based on the difficulty level and topic tags, we can assume that we need to write an algorithm to traverse the linked list and print its elements.
Here's a step-by-step breakdown of the solution:
- Start at the head node of the linked list.
- Traverse the linked list by moving from one node to the next until you reach the end of the list (i.e., until the
nextpointer of the current node isNULL). - For each node, print its value.
Here's a simple ASCII art diagram illustrating the algorithm:
Head -> Node1 -> Node2 -> ... -> NodeN
Time complexity: O(n), where n is the number of nodes in the linked list. Space complexity: O(1), since we only need to keep track of the current node and don't require any additional space that scales with the input size.
Optimized Solutions
Java
public void printLinkedList(Node head) {
Node current = head;
while (current != null) {
System.out.print(current.val + " ");
current = current.next;
}
}