notes/OJ notes/pages/Leetcode Single-Number.md
2022-07-22 15:36:57 +08:00

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# Leetcode Single-Number
#### 2022-07-22 15:31
> ##### Algorithms:
> #algorithm #bit_manipulation
> ##### Data structures:
> #DS #bitset
> ##### Difficulty:
> #coding_problem #difficulty-easy
> ##### Additional tags:
> #leetcode
> ##### Revisions:
> N/A
##### Related topics:
```expander
tag:#bit_manipulation
```
##### Links:
- [Link to problem](https://leetcode.com/problems/single-number/)
___
### Problem
Given a **non-empty** array of integers `nums`, every element appears _twice_ except for one. Find that single one.
You must implement a solution with a linear runtime complexity and use only constant extra space.
#### Examples
#### Constraints
### Thoughts
> [!summary]
> This is a #template_remove_me
### Solution