bricks wall add the

Ray Tracing: The Next Week

2. Motion Blur 在前面,反走样是通过像素内取多个路径实现的,此外多条路径的选择也跟后面的漫反射、模糊反射、散焦模糊等一系列随机过程有关,如果继续暴力解法,也可以实现运动模糊。 在真实的相机中,照片的形成是对一段时间内光线的记录,与快门有关,因此,为了模拟摄影,加入运动模糊。 首先运动模 ......
Tracing Next Week Ray The

The 1st Universal Cup. Stage 12: Ōokayama

G 容斥完之后发现要求一个m次多项式的n次方,并且得到$n\times m$项。 原本很sb地直接套了个多项式LnExp上去(即使知道大概率过不了),然后狂TLE。。。 其实但凡从常数的角度分析,Exp的常数有14倍,已经比$log(m)$大了,所以不如写快速幂,然后写着就会发现卷积的长度总和其实是 ......
Universal okayama Stage The 1st

Leader of the Opinion Leaders

题目 Weibo is known as the Chinese version of Twitter. One user on Weibo may have many followers, and may follow many other users as well. According to ......
Opinion Leaders Leader the of

The Second Run of Quicksort

代码 #include<iostream> #include<vector> #include<cstdio> using namespace std; const int maxn = 100010; vector<int> sequence; int maxL, minR, cnt, k, n, ......
Quicksort Second The Run of

D. Solve The Maze

D. Solve The Maze 大意:建墙让所有好人可以到达坐标$(n,m)$,任何一个坏人都不能到达坐标$(n,m)$ 分析: 把坏人直接关起来,在坏人的四面建墙, 统计好人的人数 从坐标$(n,m)$去遍历,整个地图,看能不能遇到所有好人 3可以通过dsu, flood-fill等去做吧 细 ......
Solve Maze The

How fast are your disks? Find out the open source way, with fio

https://arstechnica.com/gadgets/2020/02/how-fast-are-your-disks-find-out-the-open-source-way-with-fio/ Storage benchmarking—much like Wi-Fi benchmarki ......
source disks Find fast your

docker报错,ERROR: Got permission denied while trying to connect to the Docker daemon socket

使用docker,避免使用sudo命令 1.本地环境是Ubuntu18.04,docker version 19.03.12 以普通用户启动docker时,会报一下错误 Got permission denied while trying to connect to the Docker daemo ......
permission connect docker Docker denied

文章推荐---ChatGPT踩坑(too many signups from the same IP)

http://681314.com/A/S1A6pDeCNF 这个文章里关于注册写得不错,需要注意的地方有两点。 第一,最好在港澳台地区或类型的地方访问提供的网站,不然无法登录 第二,虚拟短信号码,最好选大国的,小国的我没收到 ......
ChatGPT signups 文章 many from

3、复数类add成员函数

如题,要求实现: 1、复数类含两个参数的构造函数,一个为实部,一个为虚部 2、实现Add( )功能。 3、Show出结果。 #include<iostream> using namespace std; class Cmycomplex { private: int real,imag; publi ......
复数 函数 成员 add

some information about the origin of the OPT folder

In the old days, "/opt" was used by UNIX vendors like AT&T, Sun, DEC and 3rd-party vendors to hold "Option" packages; i.e. packages that you might hav ......
information the folder origin about

【题解】[ABC248G] GCD cost on the tree

「八云紫」无数次痛苦地询问,为什么我们还活着? ……而「古明地恋」从不会回答。 恋恋闭上了觉之眼。 思路 容斥 + dp. $\gcd$ 相关,考虑 $\mu$ 反演或者 $\varphi$ 反演。 本质上都和容斥差不多,不如直接一步到位考虑容斥。 把权值拆成 $\gcd$ 和对应的方案数两部分,考 ......
题解 248G cost tree ABC

Uva--122 Trees on the level(二叉树的层次遍历)

记录 23:27 2023-4-20 https://onlinejudge.org/external/1/122.pdf reference:《算法竞赛入门经典第二版》例题6-7 二叉树的层次遍历,这里是直接复制了作者的代码。(之前在我的数据结构学习里面手写过树、二叉树、AVL树(说是手写,其实也 ......
层次 Trees level Uva 122

The Second Type of Uncertainty in Monte Carlo Tree Search

**发表时间:**2020 **文章要点:**MCTS里通常通过计算访问次数来做探索,这个被称作count-derived uncertainty。这篇文章提出了第二种uncertainty,这种uncertainty来源于子树的大小,一个直觉的想法就是,如果一个动作对应下的子树小,那就不用探索那么 ......
Uncertainty Second Search Monte Carlo

1094 The Largest Generation

A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to find t ......
Generation Largest 1094 The

Find the sum of the series : 1.n + 2.(n – 1) + 3.(n – 2) + ….. + (n – 1).2 + n.1.

https://www.vedantu.com/question-answer/find-the-sum-of-the-series-1n-+-2n-1-+-3n-2-+-+-class-11-maths-cbse-5f34d4da5597f32583a5adca ......
the series Find sum of

Git提交时提示The file will have its original line endings in your working directory的解决方法

同事新建了一个仓库,git add的时候总是会提示 warning: LF will be replaced by CRLF in public/tinymce/README.md.The file will have its original line endings in your workin ......
directory original endings working 方法

Unlock the Power of High-Performance Networking with the IPQ9554

In today's world, reliable and high-speed internet connectivity is essential for everything from online gaming and streaming to remote work and learni ......

Arrange the Numbers UVA - 11481

求 1∼n 的排列 A 中,满足前 m 个数中,刚好有 K 个数使得 A[ i ]=i 的 AA 的个数。 错位排列 #include<bits/stdc++.h> using namespace std; const int mod=1e9+7; #define int long long int ......
Arrange Numbers 11481 the UVA

升级 .net 6后 The view 'Index' was not found. The following locations were searched

升级.net6之后Razor页面出现找不到view的情况,原因是.net6默认移除了一些依赖包,如下完美解决web工程添加包Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilationstartup.cs里面加上Compilation引用builder.Serv ......
The following locations searched Index

git add 多个文件和文件夹的方法

方法一: git add 添加多个文件,文件之间以空格隔开 git add file1 file2 file3 方法二: 多次git add git add file1 git add file2 git add file2 方法三 : 添加指定目录下的文件 config目录下及子目录下所有文件,h ......
文件 文件夹 多个 方法 git

The fontspec package Font selection for XeTeX and LuaLATEX

The fontspec package Font selection for XeTeX and LuaLATEX By file name XeTeX and LuaTEX also allow fonts to be loaded by file name instead of font na ......
selection LuaLATEX fontspec package XeTeX

Rendering the Whole Wide World on the World Wide Web - Kevin Ring,2013 - Cesium&AGI

Kevin Ring,Analytical Graphics, Inc. December 2, 2013 1. Massive Terrain Rendering(大批量地形渲染) 2. Cesium Platform - Javascript,webgl,web workers,typed ar ......
World Wide Rendering the Cesium

报错解决:user.Case: (models.E020) The 'Case.check()' class method is currently overridden by

Django在启动时报错,如下: user.Case: (models.E020) The 'Case.check()' class method is currently overridden by <django.db.models.query_utils.DeferredAttribute o ......
Case overridden currently models method

CF1810G The Maximum Prefix

题面传送门 挺好一题,综合了几种方法。 首先看到题会想到一个dp:设 $f_{i,j,k}$ 表示到了第 $i$ 个位置,历史前缀最大值为 $j$ ,当前前缀和为 $k$ 的概率,乘上期望就是答案。但是这个状态非常寄因为状态本身就有 $O(n^3)$ 了而且不易优化。所以我们需要另辟蹊径。 不妨假设 ......
Maximum Prefix 1810G 1810 The

Konga versions equal to or below v0.14.9 use the default TOKEN_SECRET

Vulnerability Description Kong is a clould-native, fast, scalable, distributed microservice abstraction layer (also known as API gateway, API middlewa ......
TOKEN_SECRET versions default SECRET Konga

Codeforces 1810G - The Maximum Prefix(DP)

挺小清新的一道计数题。 首先先分析下这个“最大前缀和”,按照最朴素的思路就是扫一遍每个前缀,然后记录一下当前的 $sum$ 与前面的 $mx$,但是如果你一直陷在这个思路上你就似了,因为按照这个思路做,你 DP 状态里需要记录 $sum$ 和 $mx$ 两个维度,算上下标一维总共是 $n^3$,并且 ......
Codeforces Maximum Prefix 1810G 1810

升级Java17后Maven中使用bouncycastle加解密遇到JCE cannot authenticate the provider BC的解决办法

网上找了很多办法,逐一试过之后,发现有效的方式为修改打包方式: <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.3.0</version ......

两数相加-Add Two Numbers-中等

两数相加 Add Two Numbers [M] 题目: https://leetcode.cn/problems/add-two-numbers/description/?favorite=2cktkvj 讲解 https://www.youtube.com/watch?v=wgFPrzTjm7s ......
Numbers Add Two

An item with the same key has already been added.

开发环境:.Net Core 3.1,NPOI 2.6.0 前言:复制行数据时,提示错误如下: An item with the same key has already been added. Key: 0 at System.Collections.Generic.Dictionary`2.Tr ......
already added item been with