notes/CS notes/pages/Leetcode Reverse-Linked-List.md
2022-06-15 22:32:23 +08:00

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# Leetcode Reverse-Linked-List
#### 2022-06-15 22:07
---
##### Algorithms:
#algorithm #recursion #iteration
##### Data structures:
#DS #linked_list
##### Difficulty:
#leetcode #coding_problem #difficulty-easy
##### Related topics:
```expander
tag:#linked_list
```
##### Links:
- [Link to problem](https://leetcode.com/problems/reverse-linked-list/)
___
### Problem
Given the `head` of a singly linked list, reverse the list, and return _the reversed list_.
#### Examples
**Example 1:**
![](https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg)
```markdown
**Input:** head = [1,2,3,4,5]
**Output:** [5,4,3,2,1]
```
**Example 2:**
![](https://assets.leetcode.com/uploads/2021/02/19/rev1ex2.jpg)
```markdown
**Input:** head = [1,2]
**Output:** [2,1]
```
**Example 3:**
```markdown
**Input:** head = []
**Output:** []
```
#### Constraints
- The number of nodes in the list is the range `[0, 5000]`.
- `-5000 <= Node.val <= 5000`
### Thoughts
> [!summary]
> This is a #template_remove_me
### Solution