approximation theory method and
「解题报告」CF1179E Alesya and Discrete Math
又到了我最爱的一步都想不出来的环节了! 首先我们有一个分治做法:每次找出所有函数中 $f_k(x_k) = \frac{L}{2}$ 的序列 $\{x_k\}$。我们按照这个进行排序,将函数分为两部分,这样我们就能把问题分为两个子问题: - 定义域为 $[1, x_{\frac{n}{2}}]$,值 ......
Oceans on a Shoestring: Shape Representation, Meshing and Shading(低成本的海洋:形状表示、网格划分和着色)-2013年
作者:Huw Bowles 单位:Studio Gobo Introduction(简介):Studio Gobo is a small team of talented developers based in Brighton / UK The Crew(成员):Ben Andrews, Paul ......
CF1819C The Fox and the Complete Tree Traversal
# [$\color{purple}\text{The Fox and the Complete Tree Traversal}$](https://www.luogu.com.cn/problem/CF1819C) 比较有意思的一题。先考虑一个序列的权值。对长度为 $len$ 的序列排序,价值为 ......
关于msyql between and 的边界问题
between 的范围是包含两边的边界值 eg: id between 3 and 7 等价与 id >=3 and id<=7 not between 的范围是不包含边界值 eg:id not between 3 and 7 等价与 id < 3 or id>7 mysql between日期边界 ......
【cpluscplus教程翻译】友元和继承(Friendship and inheritance)
# 友元函数(Friend functions) 原则上,private和protected成员不能在声明的类外被使用,然而这条规则不适用于友元 友元是用friend关键字声明的函数或者说类 如果一个非成员函数声明成一个类的友元,那么它可以访问private和protected。这可以通过在类里添加 ......
Error: Main method not found in class
###执行java报错,没有发现主方法###[root@localhost qf]# java QfError: Main method not found in class Qf, please define the main method as: public static void main( ......
use SSH to connect to Raspberry Pi methods All In One
# use SSH to connect to Raspberry Pi methods All In One > `Raspberry Pi` ## user@hostname ```sh # 无需知道 Raspberry Pi 的 IP Address, 即可使用 SSH 连接 👍 $ ssh ......
UE Build System:Target and Module
Module 是构成 Unreal 的基本元素,每一个 Module 封装和实现了一组功能,并且可以供其他的 Module 使用,整个 Unreal Engine 就是靠各个 Module 组合驱动的,连我们创建的游戏项目本身,都是一个单独的 Module。 那么 UE 又是怎么创建和构建这这些 M ......
MYSQL设置密码时显示Failed! Error: SET PASSWORD has no significance for user 'root'@'localhost' as the authentication method used doesn't store authentication d
用这个命令进入mysql sudo mysql 在sql命令行输入以下命令回车,你就可以把密码改成mynewpassword ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password by 'mynewpassword ......
MYSQL设置密码时显示Failed! Error: SET PASSWORD has no significance for user 'root'@'localhost' as the authentication method used doesn't store authentication d
用这个命令进入mysql sudo mysql 在sql命令行输入以下命令回车,你就可以把密码改成mynewpassword ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password by 'mynewpassword ......
How to Delete a Git Branch Both Locally and Remotely
# TL;DR version ``` https://www.freecodecamp.org/news/how-to-delete-a-git-branch-both-locally-and-remotely/ // delete branch locally git branch -d loc ......
Myarray and Mystring
### Mystring.cpp ``` #include using namespace std; class Mystring { public: Mystring() : s_(NULL), len_(0), siz_(0) {} //无参构造 Mystring(const char* s); ......
IIS Options request/method return 404 response code
关于Options 第一种思路是避免发出 Options 类型的请求,是否需支持 Options 类型请求自行评估。PS:可能需要修改代码。 第二种思路是直接解决这个问题,这个问题可能有很多种原因导致,我遇到的是在服务器打补丁后 Options 被禁用了,有两种方式,见下方: 1)方法一:通过修改 ......
FINC3017 Investments and Portfolio
FINC3017 Investments and Portfolio ManagementAssignment 2: Analyzing AnomaliesDue: 11:59PM, 15 May 2023Word limit: 1500, excluding tables, figures, an ......
Learning with Local and Global Consistency
[TOC] > [Zhou D., Bousquet O., Lal T. N., Weston J. and Scholk\ddot{o}pf B. Learning with local and global consistency. NIPS, 2003.](https://proceedin ......
405 Method Not Allowed,CORS跨域,来也自动化OCR接口报错,Nginx处理OPTIONS请求
nginx 中修改如下 server { listen 15080; server_name localhost; location / { add_header Access-Control-Allow-Origin *; add_header Access-Control-Allow-Crede ......
Combining Label Propagation and Simple Models Out-performs Graph Neural Networks
[TOC] > [Huang Q., He H., Singh A., Lim S. and Benson A. R. Combining label propagation and simple models out-performs graph neural networks. ICLR, 20 ......
[React Typescript] Overriding and Removing Component Props
Using Omit import { ComponentProps } from 'react'; import { Equal, Expect } from '../helpers/type-utils'; export const Input = ( props: Omit<Component ......
AtCoder Grand Contest 062 B Split and Insert
[洛谷传送门](https://www.luogu.com.cn/problem/AT_agc062_b "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/agc062/tasks/agc062_b "AtCoder 传送门") 妙妙题。 像这种最 ......
VUE npm run serve 提示error Mixed spaces and tabs no-mixed-spaces-and-tabs 解决办法
解析: 看这个错误提示意思就是“不允许代码中出现空格和tab键混合的情况”大多数代码约定要求使用空格或 tab 进行缩进,禁止使用空格和tab混合缩进。因此,一行代码同时混有 tab 缩进和空格缩进,通常是错误的。 解决办法:原因找到了,解决办法就是找到spaces和tabs混合的地方,然后统一即可 ......
Sep 2022-Prioritized Training on Points that are Learnable, Worth Learning, and Not Yet Learnt
提出了Reducible Holdout Loss Selection (RHOLOSS),一种简单但有原则的技术,近似地选择那些最能减少模型泛化损失的点进行训练 ......
CF1774F Magician and Pigs【性质】
有一个空序列,需要维护如下三个操作: - ```1 x```:在序列中添加 $x$。 - ```2 x```:把序列中每个元素的值减去 $x$。 - ```3```:重复从第一条到本条操作的前一条的所有操作,包括操作 $3$。 当一个数的值 $\leq 0$ 时,它将被移出序列。求最后有多少个数还在 ......
CF1824D LuoTianyi and the Function【线段树】
给定长为 $n$ 的数组 $a$,如下定义 $g(i,j)$:当 $i \leq j$ 时,$g(i,j)$ 是满足 $\{ a_p : i \leq p \leq j \} \subseteq \{a_q : x \leq q \leq j\}$ 的最大整数 $x$。否则 $g(i,j) = 0$ ......
2. Equalibrium and Temperature
### 什么是Equalibrium (state) Equalibirum state 可以说是系统演化的一个目标,当一个系统经过长时间的演化后处于一个与初始条件无关,且其一些宏观性质不随时间变化的状态时,我们就说系统进入了equalibrium state. ### 如何描述Equalibriu ......
现代计算机图形学——P6. Rasterization 2(Antialiasing and Z-Buffering)(光栅化(反走样和深度缓冲(Z缓冲)))
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Check the tbs' usage in PDB and CDB
check out the tbs's usage in PDB and CDB , run in CDB set line 200 pages 999 column name for a10 column tablespace_name for a15 column "MAXSIZE (GB)" ......
已解决If this call came from a _pb2.py file, your generated code is out of date and must be regenerated
已解决TypeError: Descriptors cannot not be created directly.If this call came from a _pb2.py file, your generated code is out of date and must be regener ......
「解题报告」AGC012E Camel and Oases
好久之前模拟赛就考过的题,今天才写) 首先发现我们跳跃的次数只有 $\log V$ 次,我们设跳了 $i$ 次后的时刻为第 $i$ 时刻,且最后一个时刻为 $t$。发现每一时刻,我们能够到达的绿洲形成了若干个连续段。不难发现,当时刻 $0$ 的时候连续段数量大于 $t + 1$ 时一定全部都无法到达 ......
RabbitMQ: Error: unable to perform an operation on node 'rabbit@prod-ad-api-02'. Please see diagnostics information and suggestions below.
Error: unable to perform an operation on node 'rabbit@prod-ad-api-02'. Please see diagnostics information and suggestions below. rabbit@prod-ad-api-02 ......