shadow the dog and
C: input and output
/** # encoding: utf-8 # 版权所有 2023 涂聚文有限公司 # 许可信息查看： # 描述：输入输入出格式 # Author : geovindu,Geovin Du 涂聚文. # IDE : CLion 2023.1.1 c17 windows 10 # Datetime : ......
C. Jellyfish and Green Apple
C. Jellyfish and Green Apple 题目大意： 有\(n\)苹果，\(m\)个人，将苹果平分给每个人，每块苹果可以二分，问最少的分割次数 思路： 首先，当\(n\%m==0\)时,说明，苹果可以等分直接输出\(0\) 其次当\(n>m\)时，\(n\%=m\), 最终的苹果块数 ......
The prevention of water contamination
In order to prevent and control water contamination, China has formulated many policies and laws, such as the Water Pollution Prevention and Control L ......
使用反编译软件jd-gui.exe,打开提示:The application requires a Java Runtime Environment 1.8.0
jd-gui.exe,打开提示:The application requires a Java Runtime Environment 1.8.0 但是已经是java1.8版本了 这时候修改注册表win+R 输入 regedit 打开注册表 找到HKEY_LOCAL_MACHINE\SOFTWARE ......
The measures of China's air pollution
The expiring action plan The earlier Air Pollution Action Plan, released in September 2013, may have been China’s most influential environmental polic ......
The measures of solving water issues
（1）Proper Sewage TreatmentAs a way of reducing the pollution load to zero, there is a need for the more advanced engineered cleaning process. Some dev ......
[题解] CF1327F AND Segments
AND Segments 有 \(m\) 个限制 \((l, r, x)\)。 要计算满足以下条件的长度为 \(n\) 的序列 \(a\) 的数量： \(\forall i \in [1, n], 0 \le a_i < 2^k\)。 \(\forall i \in [1, m], a_{l_i} ......
Fight Hard for Ecological Protection and Governance of the Yellow River to Address the Water Contamination
1.Effective measure aimed at addressing the water contamination: We will fight hard for ecological protection and governance of the Yellow River. We w ......
CF 628 C Bear and String Distance
题面翻译 题目描述： Limak是一只小北极熊。他喜欢单词——只由小写字母构成，长度为n的单词。 他规定dist(s,s')的值为s与s'在26个字母中的间距。如，dist(c,e)=dist(e,c)=2,dist(a,z)=dist(z,a)=25。 而且，当dist两个单词时，其值为dist第 ......
使用and和or连接多个选择条件
使用and连接多个条件判断时只有满足了多个条件，才能执行if后面的语句块 有几个条件就得满足几个条件，如果其中有一个条件不满足将输出else的语句块 示例： User_name=input('请输入您的用户名：') pwd=input('请输入您的密码：')if User_name=='hzj'an ......
The 2023 ICPC Nanjing Regional Contest G,F
G. 背包 我们要是选一个集合出来 并且免除k个宝石的话 我们一定是选最贵的k个宝石免费 这样我们的做法就是对wi排序 然后前面的做背包 后面直接贪心选vi最大的k个 这样是一定包含了最优解的 当然你可以用二分bit 也可以直接维护另一个dp int n,tr1[200010],tr2[200010 ......
The solution of soil erosion
Solution of soil erosion (1) Engineering measures: building terraces, damming and silting land, using earthwork and concrete works, fish scale pits, e ......
CF1304E 1-Trees and Queries（lca+树上前缀和+奇偶性）
题目 二话不说，直接按题意模拟暴搜，当然 \(O(nq)\) 的复杂度显然是寄了的。 不过，在模拟的过程中，我在链式前向星的删边中居然一开始错了，还是要 mark 一下以后注意。 void del(int x, int pre) { e[top].to = e[top].next = 0; h[x] ......
Maven打包项目时异常：Cannot access nexus-aliyun (http://maven.aliyun.com/nexus/content/groups/public) in offline mode and
package是报错 Cannot access nexus-aliyun (http://maven.aliyun.com/nexus/content/groups/public) in offline mode and the artifact org.apache.maven.surefire ......
cf1325D. Ehab the Xorcist（位运算trick）
https://codeforces.com/contest/1325/problem/D 有一个非常经典的结论 a+b=(a^b)+2(a&b) 这个题就可以往上面靠，首先我们观察一下，对于两个数的情况，如果(v-u) mod 2=1,必然无解，试着将它扩展一下，也是对的，因为最低一位没有进位。 ......
Kattis - A Complex Problem (The 2023 ICPC Rocky Mountain Regional Contest)
Intro This was one of the problems I didn't do during the regional contest. One of my teammates solved it. Observation There are few things to note. F ......
The governance measures of marine oil pollution
The governance measures (1). Preventive measures. Prevention is one of the most effective control methods, including the following aspects: a. Strengt ......
C++ insert into tables of pgsql via libpq-fe.h and compile by g++-13
1.Install libpq-dev sudo apt install libpq-dev locate libpq-fe.h /usr/include/postgresql/libpq-fe.h 2.create table t1 create table t1(id bigserial not ......
Getting Started with MongoDB and C++
This article will show you how to utilize Microsoft Visual Studio to compile and install the MongoDB C and C++ drivers on Windows, and use these drive ......
kubeadm部署的k8s证书过期问题 k8s问题排查：the existing bootstrap client certificate in /etc/kubernetes/kubelet.conf is expired
解决问题： 估计跟移动有关，下面那个没解决问题，是因为在原有文件的基础上修改的吧？而这里直接是移走，重新生成了新的。不太清楚是不是这个原因。 $ cd /etc/kubernetes/pki/ $ mv {apiserver.crt,apiserver-etcd-client.key,apiserv ......
The PRC's Policy of Tackling Water Pollution
THE POLICY CONTEXT The industrial water management system in the PRC is spread over two phases (see Figure 1). The first phase is "before-process", wh ......
the use of photovoltaic to prevent and control desertification
Land desertification is one of the main causes of sandstorm disaster. With the further intensification of global warming, desertification is becoming ......
Get environmentally friendly, biodegradable plastics into the market
Now digital techs empower plastic pollution combat in China, and our new material combined with non-enzymic hydrolysis, water dissolution and biodegra ......
C. Serval and Toxel's Arrays 组合数学
题目链接🔗 分析一下题意：给定一个初始数组A，以及m次操作，每一次操作会改变一个A中的数字，一共得到m+1个数组。 现在，要求出任意两个数组两两组合的情况中：所有的不重复数字出现次数的总和。 这道题想了很久，乍一看以为是模拟，手画递归找规律一直没想出来。看了题解思路，发现出发点就错了：因为每个数组 ......
CF1485E Move and Swap 题解
不要什么脑子的带 \(log\) 做法。 思路 考虑 \(dp_{i,j}\) 表示红点到 \(i\)，蓝点到 \(j\) 的最大权值。 那么有： \[dp_{i,j}=\max(dp_{fa_i,pre},dp_{fa_j,pre})+|a_i-a_j| \]其中 \(pre\) 是任意一个上一层 ......
The 10th Jimei University Programming Contest
外校打星队伍，排名22/450，还算凑合吧。 A. A+B问题 直接枚举进制 #include <bits/stdc++.h> using namespace std; using vi = vector<int>; void solve() { string str; vi a, b, s; ci ......
The methods for Global Warming
The methods for deal with Global Warming: China's emission reduction measures to address climate change: mainly through market means, supplemented by ......
How does China solve the water pollution?
How does China solve the water pollution? One River, One Plan and One Map With the continuous development of China's economy and society, sudden water ......
【动态规划】【动态 DP】 CF750E New Year and Old Subsequence
题目描述 定义数字串是好的当且仅当其包含子序列 2017 ，不包含子序列 2016。 定义数字串的丑陋值为最少删掉几个字符，它才能是好的，如果一直不能，就是 \(-1\) 。 给定数字串 \(t\) ，长度为 \(n\) ，\(q\) 次询问求 \([l,r]\) 的丑陋值。 \(1 \leq n, ......