@lwjef #37 From Poe - Saga: 实际上，"RIP"和"R.I.P."是表示同一个意思的缩写，即"Rest in Peace"（安息）。"RIP"是一种常见的缩写形式，通常被用于互联网上的聊天室和社交媒体等数字场景中。而"R.I.P."则是更正式的书写方式，通常用于印刷品或正式场合，如讣告、纪念碑等。在书写时，通常将每个字母用点号分隔开来，以示清晰。无论是"RIP"还是"R.I.P."，它们都是表达对已故人士的哀悼和祝福的一种方式。

的确，我在网上基本看到的都是 RIP 。

@luzemin #16 RIP 不可以？ https://dictionary.cambridge.org/dictionary/english/rip

@waytodelay #10

以 Fibonacci sequence 为例，在 top-down 版本中，我们知道 f(n) = f(n-1) + f(n-2)，然后 f(1)和 f(2)为 base case 。那么在 bottom-up 版本中，我们就可以以 f(1)和 f(2)为起点，一点一点往上解决更大的问题。

https://i.imgur.com/OaWb9v0.png

@waytodelay #10 没关系，一般人都会将动态规划错误地同等于 bottom-up ，但是动态规划包含了 bottom-up 和 top-down ，而 top-down 相对来说更加容易实现，当你完成了 top-down 之后，你就会很容易得出 bottom-up 版本。

From Poe - Sage:
Dynamic programming can be implemented using a bottom-up approach or a top-down approach.

In the bottom-up approach, also known as the "tabulation" method, the solution to a problem is computed iteratively starting from the smallest subproblem and building up to the larger problem. This approach is typically implemented using a table or array to store intermediate results. The advantage of the bottom-up approach is that it often has better space complexity than the top-down approach, since it avoids the overhead of recursion.

In the top-down approach, also known as the "memoization" method, the solution to a problem is computed recursively, but with the added step of caching intermediate results so that they can be reused later. This approach can be more intuitive and easier to implement than the bottom-up approach, but it can suffer from the overhead of recursion and may not be as efficient in terms of space complexity.

Both approaches have their advantages and disadvantages depending on the problem at hand.

@waytodelay #6 学习 Python 算是一个理由，最重要的是，让自己时刻保持 problem solving 的能力，还可以学到别人解决问题的想法，而且我也很享受解题过程。

我也不怎么做 hard 。BTW ，LeetCode 跟数学没有太大关系。

@x43125 #5 如果是刚开始的话，建议跟着 Blind 75 做，理解每一种类型题目的解法，千万不要记答案。

@zpxshl #1
@dif #3
我是喜欢整个解题过程，所以才能一直坚持下去。😅

@monkey110 #30 我现在是让软件自动切换节点，会经常切换节点的，不过没有给我带来很大的困扰，我觉得体验挺好的。

@forgottencoast #35 我跟你的想法一样，我更希望软件能够提供一个用户友好的方式进行设置，或许这不是一个常见的用户需求吧。🤕

@vcbal #2 爬楼梯是什么题？可以给一下 LeetCode 链接吗？这个 https://leetcode.com/problems/climbing-stairs/ ？

你这个问题就有问题，你说“ 将这 N 个数字分为 N 组”，这个明显不对。然后怎么才算一组，是不是组的总和要尽量大？组的数量是不是要尽量少。

BTW ，要先理解问题，才能解决问题。

@SmiteChow #16 What are you talking about? 😴

@poorcai #11 你可以在 Chrome 浏览器安装“Bing Chat for All Browsers” extension ，我不喜欢 Edge ，不够简洁。

@hsir #8 颜色跟 mode 有关，我选择的是 creative mode 。

这种问题问 ChatGPT 最好了。

In Java, the protected keyword is a visibility modifier that can be applied to class members (fields, methods, and nested classes) to restrict their access to the class itself, its subclasses, and other classes in the same package.

More specifically, when a class member is declared as protected, it can be accessed by:

The class itself
Any subclass of the class, even if the subclass is in a different package
Any other class in the same package as the class

可以发一下来源链接吗？

@grahamsa0503 #38 LeetCode 地址 - https://leetcode.com/problems/reverse-words-in-a-string/description/

https://i.imgur.com/ha5YQ27.png

@JasonLaw #28 https://leetcode.com/problems/permutations/submissions/935632864/