Question Link : https://leetcode.com/problems/add-two-numbers/

Difficulty: Medium

Premium: False

Question

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked …

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Question Link : https://leetcode.com/problems/copy-list-with-random-pointer/

Difficulty: Medium

Question

A linked list of length n is given such that each node contains an additional random pointer, which could point to any node in the list, or null. Construct a deep copy of the list. The deep copy should consist …

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