---
# System prepended metadata

title: Leetcode
tags: [Study_aboard]

---

# Leetcode

###### tags: `Study_aboard`

## Tips
1. 看解法但不要看code
2. focus on mdeium 難度的題目
3. 同一種topic一起做
4. 一題不要卡太久(浪費時間)
5. 注意time complextiy and space complexity


## Spread sheet
![](https://i.imgur.com/ZAgJSOV.png)

https://www.dropbox.com/s/orel0rh8k3f3zw9/Leetcode%20Index%20for%20YT.xlsx?dl=0

## Skills and Algorithm
[Learning knowledge](https://hackmd.io/@chentzj/SkNIsGDpu)

## Problems Categories
[Array](https://hackmd.io/@chentzj/S1mWuELf_)
[DP](https://hackmd.io/@chentzj/HyDNqVLGu)
[String](https://hackmd.io/@chentzj/H1BHDRPfu)
[Tree](https://hackmd.io/@chentzj/B1izIoVVu)
[Recursive](https://hackmd.io/@chentzj/H1rkzgVw_)
[Link List](https://hackmd.io/@chentzj/SkvYrtB6u)
[Binary search](https://hackmd.io/@chentzj/S1efSWY0d)


## Biweekly or weekly contest

To practice speed and correctness of your code implementations.

![](https://i.imgur.com/MwONLUd.png)
![](https://i.imgur.com/pLw6lJq.png)



## Recommend reference
[Leetcode answer ebook](https://leetcode-solution-leetcode-pp.gitbook.io/leetcode-solution/medium)
[reference](https://syhh.medium.com/leetcode%E5%88%B7%E9%A1%8C%E6%8A%80%E5%B7%A7%E5%88%86%E4%BA%AB-%E6%89%BE%E5%AF%A6%E7%BF%92-%E6%89%BE%E6%AD%A3%E8%81%B7-aac34eff5cc1)