80 lines
1.4 KiB
Markdown
80 lines
1.4 KiB
Markdown
# Leetcode Add-Two-Numbers
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2022-09-08 15:22
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> ##### Algorithms:
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>
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> #algorithm #math
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>
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> ##### Data structures:
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>
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> #DS #linked_list
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>
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> ##### Difficulty:
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>
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> #coding_problem #difficulty_medium
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>
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> ##### Additional tags:
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>
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> #leetcode
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>
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> ##### Revisions:
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>
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> N/A
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##### Links:
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- [Link to problem](https://leetcode.com/problems/add-two-numbers/)
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---
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### Problem
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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 list.
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You may assume the two numbers do not contain any leading zero, except the number 0 itself.
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#### Examples
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**Example 1:**
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```
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**Input:** l1 = [2,4,3], l2 = [5,6,4]
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**Output:** [7,0,8]
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**Explanation:** 342 + 465 = 807.
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```
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**Example 2:**
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```
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**Input:** l1 = [0], l2 = [0]
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**Output:** [0]
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```
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**Example 3:**
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```
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**Input:** l1 = [9,9,9,9,9,9,9], l2 = [9,9,9,9]
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**Output:** [8,9,9,9,0,0,0,1]
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```
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#### Constraints
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- The number of nodes in each linked list is in the range `[1, 100]`.
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- `0 <= Node.val <= 9`
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- It is guaranteed that the list represents a number that does not have leading zeros.
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### Thoughts
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> [!summary]
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> This is a elementary #math problem.
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> For a list of similar questions, visit [[Elementary Math Problems]]
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Done by using elementary math.
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Use only one
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### Solution
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