desertification china of
The Solutions of Ocean Trash
Everyone can do something to help solve the plastic pollution problem, and millions of people worldwide are already taking action to reduce their plas ......
Configuration failed to find one of freetype2 libpng libtiff-4 libjpeg.
001、问题,安装 devtools中遇到如下报错:Configuration failed to find one of freetype2 libpng libtiff-4 libjpeg. 002、解决方法: [root@pc1 ~]# yum install freetype-devel l ......
import torch_geometric报错Could not find module '...\torch_sparse\_convert_cpu.pyd' (or one of its dependencies). Try using the full path with constructor syntax.
按照官网步骤安装完torch-scatter、torch-sparse、torch-cluster和torch-spline-conv等依赖项,也成功安装了torch_geometric,但在导入的时候还是报错: 原因是没有C++环境,在该网址中https://visualstudio.micros ......
Measures of Controlling Desertification
As land desertification continues to worsen, our country has taken some measures to control it. 1.Tree planting and afforestation. 2.Wind resistance a ......
No compiler detected, make sure you are running on top of a JDK instead of a JRE
Java 调 webservice 报如下错误 [2023-11-07 17:01:02.315] ERROR [scheduling-1] ToHisApiImpl.java:106 - No compiler detected, make sure you are running on top ......
China's Strategies on Air Pollution
Introduction Averaged percentage changes in PM2.5 annual concentrations in 31 major Chinese cities since 2015. Credit: Science China Press A new study ......
Design of A Basic Computer Model With Stack Function
This post introduces how to design a basic computer model which can achieve commmon stack functions. ......
Two Types of Spells
贪心题,先假设全部都是w[i],然后你发现最多可以放电之咒个数的两倍,贪心加上这么多w[i](从大到小),但是你发现不能全是电之咒。 后面的限制不好用数据结构维护,考虑让数据结构维护的东西天然满足这个限制,那么直接删去一个电之咒然后选就行了。 那么肯定删去最小的电之咒。 维护的东西有: \[\sum ......
完蛋!我被 Out of Memory 包围了!
是极致魅惑、洒脱自由的Java heap space?是知性柔情、温婉大气的GC overhead limit exceeded?是纯真无邪、活泼可爱的Metaspace?如果以上不是你的菜,那还有……刁蛮任性,无迹可寻的CodeCache!性感火辣、心思细腻的Direct Memory高贵冷艳,独... ......
[翻译]——How the MySQL Optimizer Calculates the Cost of a Query (Doc ID 1327497.1)
本文是对这篇文章How the MySQL Optimizer Calculates the Cost of a Query (Doc ID 1327497.1)的翻译,翻译如有不当的地方,敬请谅解,请尊重原创和翻译劳动成果,转载的时候请注明出处。谢谢! 适用于: MySQL 4.0 及后续更高的版 ......
XXII Open Cup named after E.V. Pankratiev, Grand Prix of Daejeon 部分题解
省流:A、B、C、E、H、K、L。 D 和 I 之后可能会看心情补,剩下的题大概这辈子都不会做了。 A. Points 有两个由二维平面上的点组成的可重点集 \(U,V\)。如下定义 \(D(U,V)\): 当 \(U,V\) 中存在一个为空时,\(D(U,V) = -1\)。 否则 \(D(U,V ......
报错:bucketId out of range: -1 (state=,code=0)
一、背景 datax同步postgre库表数据到hive表,同步完成后select报错 java.io.IOException: java.lang.IllegalArgumentException: Bucket ID out of range: -1 二、代码 1.hive 建表语句 creat ......
查询列表时参数有限制提示The server supports a maximum of 2100 parameters.
1 public ActionResult Export(SAPPRItemSearchVM searchvm) 2 { 3 searchvm.SetFilter(MyPRItemReader, this.GetWorkingUser(true)); 4 5 IList<SAPPRItemDTO> ......
How to prevent salinization of land
How to prevent salinization of land 一.Measures: 1.It can be analyzed and operated by leveling the land, improving cultivation, fertilization, sowing, ......
P9821 [ICPC2020 Shanghai R] Sum of Log
原题链接 题意,求: \[\sum_{i=0}^{X}\sum_{j=[i=0]}^{Y}[i\&j=0]\lfloor\log_2(i+j)+1\rfloor \]为简洁,记 \(\lg(x)=\lfloor\log_2(x)\rfloor,n=\max(X,Y)\) 由于 \(i\&j=0\) ......
cf1834E. MEX of LCM(维护右端点计算区间lcm)
cf1834E 首先可以估计一下答案的量级,因为小于答案的质数都要必须要出现,5e6以内的质数大概就是3e5,所以答案不超过5e6。 我们维护以i右端点的lcm的值,这些值的数量不会太多,因为每次增长都至少×2,所以是log级别。 每次新加的时候记得更新和去重即可。 #include<cstdio> ......
Entering China's strategies of water pollution and identifying an effective measure, as well as its working principle and impact
Water Pollution Control Strategies in China(Some examples) (1)China’s strategy for controlling water pollution focused first on reducing the discharge ......
[LeetCode] 1535. Find the Winner of an Array Game
Given an integer array arr of distinct integers and an integer k. A game will be played between the first two elements of the array (i.e. arr[0] and a ......
Treatment of soil salinization
Treatment of soil salinization Strengthen agricultural management, as far as possible reasonable planting. We can improve water conservancy and streng ......
qt---主进程加载一个子进程的方法以及其中遇到“Calling a private constructor of class 'QString'”
.pro QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets CONFIG += c++17 # You can make your code fail to compile if it uses deprecated API ......
Proj. Unknown: Deciding Differential Privacy of Online Algorithms with Multiple Variables
Paper https://arxiv.org/abs/2309.06615 Abstract 背景: 自动机A被称作查分隐私自动机:当对某些D,对任何隐私预算ε>0,该自动机是Dε-differentially private( A DiP automaton is a parametric au ......
The sultion of P4959
problem & blog 首先我们看到 \(x,y\) 有可能为负数,所以我们先把它旋转到第一象限。 然后我们发现如果 \(x_a \ge x_b\) 且 \(y_a \ge y_b\) 那么 \(b\) 点就是无效的,应为他肯定可以被以左下角为 \((0,0)\),右上角为 \((x_a,y_ ......
A Template of Literature Survey For Reading Papers
Introduction Recently, I'm reading some papers and I had searched for many blogs about paper reading. To my disappointment, most of them are not organ ......
[LeetCode] 2265. Count Nodes Equal to Average of Subtree
Given the root of a binary tree, return the number of nodes where the value of the node is equal to the average of the values in its subtree. Note: Th ......
A Template of Daily Log For Recording Your Project
Daily Log 1 Author: Zhihao Li Date: November 2, 2023 Project: Robotics Stage I: Prepare the environment Records And Backups Configure Model Virtual En ......
启动nginx报错nginx: [emerg] unexpected end of file, expecting "}" in /usr/local/nginx/conf/nginx.conf:
启动nginx报错:“nginx: [emerg] unexpected end of file, expecting “}” in /usr/local/nginx/conf/nginx.conf:118”重启nginx时,报这么个错: [root@localhost conf]# /usr/lo ......
[PG] Another example of FCSA
function actual arguments and cadidates T = (193341, 23, 23) C = [(193341, 1700, 1700), (1700, 1700, 1700), (1043, 1700, 1700)] query type information ......