Add 1 to a Number Represented by a Linked List
You are given a linked list where:
Each node contains a single digit (0–9)
Digits are stored in normal order
The linked list represents a number
Example:
Input: 1 → 9 → 9
Number: 199
Output: 2 → 0 → 0
Number: 200
🧠 Step-by-Step Approach
Step...
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