Delete Node in Linked List
Singly Linked List: Fundamentals DSA practice problem on Onlearn.
Difficulty: medium.
Topics: Deleting the tail node from a linked list, Linked List, Node, Pointer, Time Complexity, Space Complexity, Big O Notation, edge cases, linked list traversal, node operations, pointer operations, time complexity analysis, Linked List Operations.
Problem: Delete the Tail of a Linked List Problem Statement Given the head of a singly linked list, delete its tail node and return the head of the modified linked list. The tail is defined as the last node in the linked list. Input Specification The input consists of a sequence of integers representing the nodes of the linked list, connected from left to right. For example, 0 1 2 represents a linked list where 0 is the head, followed by 1, then 2. Output Specification Return the head of the modified linked list after deleting its tail. The output should represent the updated linked list. Examples Example 1: Input: 0 1 2 Output: 0 1 Explanation: The tail of the list is '2'. After removing '2', the list becomes '0 1'. Example 2: Input: 12 5 8 7 Output: 12 5 8 Explanation: The tail of the list is '7'. After deleting '7', the list becomes '12 5 8'.