Solution: Add Two Numbers
Explore how to add two non-empty linked lists where each list represents a non-negative integer stored in reverse order. Learn to simulate digit-by-digit addition while handling carries, and return the sum as a linked list. Understand the algorithm's time and space complexity to optimize your coding interview solutions.
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Statement
You are given two non-empty linked lists, where each list represents a non-negative integer.
The digits are stored in reverse order, and each node contains exactly one digit.
Your task is to add the two integers and return the result as a linked list, also stored in reverse order.
You may assume that neither number has leading zeros, except the number
Constraints:
The number of nodes in each linked list is in the range
. Node.val...