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Crimson boy[5] 笑了
题目背景: 来自中等数学2021.4数学奥林匹克问题, 可能是这个栏目下有史以来最水的题, 以下解法非标答(因为没买No.5), 或许略显繁琐 题目: 设实数x_i(i=1,2,..,n)使得\sum_{i=1}^{n}x_i=0且\sum_{i=1}^{n}x_i^2=n(n-1). 证明: |\sum_{i=1}^nx_i^3|\leq n(n-1)(n-2) …… -
Crimson boi can u solve it?[4] 搞笑求积
题目背景: 在t教师课后, w同学提出此问题. 在现场的我由于过于弱智, 没能及时想出思路. 在回家途中准备展开时, 却无意中发现了"绝妙"的突破口. :i 题目: 求\prod_{i=1}^{n}(1+cos\frac{2i\pi}{n}) 先想再看提示哦 提示: 切比雪夫多项式 …… -
Addon Tools Terraria Edition Released (And Doc)
Addon Tools is back in Terraria! Download Note that this project is not open-sourced Item Recipe A = Accessory C = Consumable W = Weapon Blank Card Dropped from enemy(6% v1.0/3.7% v1.1). Used to craft other cards. (A)Damage Pocket Empty Card + 10 G…… -
Comparison of Danmaku Engines
✔️ = Good ⭕ = Partial ❌ = Bad/Unimplemented In this article I will talk about some Touhou bullet hell engines in and out of HHS Feature TestSTG 1 TestSTG 2 TestSTG 3 TestSTG 4 TestSTG S(Scratch Edition) Jade Koto (TestSTG 5) Bullet ✔️ ✔️ ✔️ …… -
日本国游记
FAQ Q: 为什么2021写2019的事??? A: 群众呼声过高。还有就是我太摸了,死活不按时填坑。 Q: 为什么标题里多了一个“国”字?? A: 不知道。 Q: 为什么不写全内容??为什么对景点的描述这么少?? A: 别人写过了,自己去搜去。这里略过大众内容。 往程 分节方式可能…… -
[小小记录]Haihua AI Cup简单记录
开始 最先参加Haihua AI Cup的原因很简单:老师要求参加... 在学校信息课上,老师突然不继续讲之前上的课,让我们做一个Python题库(当然全是我们做过的),说是要“选拔比赛”,一开始我没什么兴趣,毕竟要忙的东西确实挺多的,老师又说是AI 比赛 第一名50kRMB , 二三名20…… -
Touhou 18 released!
Actually released over 12 hours ago. This game is a lot of first in the Touhou series: First game to have both Sanae and Sakuya as playable characters. First game to have the custom.exe and startup prompt in English. First game to have the render …… -
[LSS Short] Excursion
It has been 5 months since the last LSS Short... So here's another episode with minimal effort :). Please note this series does not follow chronological order. Without further ado, let's begin. ONE Wondering, pondering, where's my position? Cle…… -
HHSOJ returned!
The famous OJ: HHSOJ Essential is back now with a newer version!! Experience it here Note: - Unfortunately, all previous users and submissions are lost 🙁 - The server stores password by plain text. Please do not use a secure one. However, we promis…… -
2021 Swift Student Challenge(WWDC)参加感想 & 经验
大家好,我是XGN,这次是在Mac上写这篇文章。这次来谈一谈WWDC Swift Student Challenge 2021. 传送门 苹果官网 在我的Blog上阅读 代码和文书参考 工程介绍 我的工程是MIST,MayISolveIt,是一个教育游戏为一体的2D Playground。在游戏中你扮演一名返乡有志青年希望通……