How to Solve Linked List Random Node Problem
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Linked List Random Node
Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Implement the Solution class: Solution(ListNode head) Initializ...
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Understanding the Linked List Random Node Problem
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Problem Statement
Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Implement the Solution class: Solution(ListNode head) Initializes the object with the head of the singly-linked list head. int getRandom() Chooses a node randomly from the list and returns its value. All the nodes of the list should be equally likely to be chosen.
Linked List Random Node
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Example inputExample outputConstraints
The number of nodes in the linked list will be in the range [1, 104].104 <= Node.val <= 104At most 104 calls will be made to getRandom.Follow up:What if the linked list is extremely large and its length is unknown to you?Could you solve this efficiently without using extra space?How Interview Coder Helps with Leetcode Problems
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