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vim E447: cannot find file iostream in path
查看c/c++文件中的头文件，可以使用gf跳转，但是有时会出现Error 447:not found in path1, 命名模式中输入，临时修改:set path=.,/usr/include,,/usr/include/c++/*/2, 修改vimrc增加set path+=.,/usr/inc ......
CF1175F The Number of Subpermutations 对自己的警告--zhengjun
太久没见过启发式合并了，然后没想出做法。 首先笛卡尔树建出来。 然后直接枚举跨过 $mid$ 的长度为 $a_{mid}$ 的区间，RMQ $O(1)$ 验证即可。 发现这样的区间个数不超过左右区间大小的较小值，时间复杂度：$O(n\log n)$。 ### 代码 ```cpp #include u ......
excel 导出 The maximum length of cell contents (text) is 32767 characters
**导出excel功能，报错。错误日志提示：:The maximum length of cell contents (text) is 32767 characters**  TypeError: Cannot read properties of null (reading 'value')
``` 删除 ```  不然则会出现 Input.js:207 Uncaught (in promise) Type ......
reify:ajv: timing reifyNode:node_modules/windows-build-tools Completed in 488ms
给用electron开发的项目中引入sqlite3和sequelize，运行时报错：Error: Please install sqlite3 package manually 网上搜索资料，有解决办法说要在管理员模式下全局安装windows-build-tools。于是执行npm i window ......
Two ways to subsetting rows in a data.table
Q: In the flights dataset, subsetting all the rows in which the planes take off from LGA and land in TPA. By i flights[origin == "LGA" & dest == "TPA" ......
nginx: [emerg] unknown directive "ngx_fastdfs_module" in /usr/local/src/nginx-1.10.0/conf/nginx.conf:52
一、问题说明：搭建fastDFS 集群时，提示错误信息为：nginx: [emerg] unknown directive "ngx_fastdfs_module" in /usr/local/src/nginx-1.10.0/conf/nginx.conf:52 通过分析加载fastdfs模块 出 ......
destoon列表性能优化，关于IN()与FIND_IN_SET
destoon数据达到一定之后列表打开速度就很慢，于是为了解决这个问题，进行以下办法处理。 找到/include/tag.func.php文件，找到这段代码： 原因： 区别： 1、in后面只能跟常量， find_in_set()函数可以使用常量或字段。 2、in是完全匹配，find_in_set() ......
defined in class path resource [de/codecentric/boot/admin/server/config/AdminServerWebConfiguration$
搭建springbootadmin监控时出现的，经排查是版本过低 ，换个高版本的，顺利进入网页界面 <dependency> <groupId>de.codecentric</groupId> <artifactId>spring-boot-admin-starter-server</artifac ......
All In即时零售，步步高、永辉没有选择
从早前永辉两位联合创始人张氏兄弟，各自推出永辉生活和永辉买菜App，再到自2021年以来，包含原CEO李国、原董秘张经仪、原副总裁金斌、原副总裁李静、原副总裁严海芸等公司高层的先后离任，永辉3年5位高管的出走，也充分表明传统商超要想在即时零售新趋势下，真正打开局面，可能还有很长一段路要走。 ......
达梦数据库中使用find_in_set()函数
本文转载自Allyn博客（http://www.allyns.cn）：http://www.allyns.cn/info/102?eqid=c1f67a7a0001c94d0000000364619de7 在日常开发过程中，我遇到了这样一个问题，我在使用数据库实现自定义流程的时候，由于审批人可以是多 ......
document.createComment All In One
document.createComment All In One
XML / HTML
......
【题解】CF gym 104337 G. Guess the Polynomial
statement：https://codeforces.com/gym/104337/problem/G 。 即求 $f(x)=\sum\limits_{i=0}^{p-2}a_ix^i$，其中只有不超过 $n$ 个 $a_i$ 非 $0$ 。 记： $$ \begin{aligned} A_{n ......
CpG islands (CGI), CpG Shores, CpG Shelves, Open sea in DNA methylation
 >https://life-epigenetics-methylprep.readthedocs-host ......
The 2019 ICPC China Shaanxi Provincial Programming Contest(2019陕西省赛)
## B. Grid with Arrows 并查集一下。 ```cpp #include "bits/stdc++.h" using namespace std; using i64 = long long; struct UnionFind { int n; vector f; UnionFin ......
The information of Seminars Language
‘The seminar is a common way ofteaching students on university courses in the UK and it is very likely that you will experience seminars on your cours ......
解决docker报错Job for docker.service failed because start of the service was attempted too often
转载自：https://blog.csdn.net/Along_168163/article/details/124118833 docker安装之后重新安装报错如下： Job for docker.service failed because start of the service was at ......
Personal utils in Python
```python # -*- coding: utf-8 -*- import os import sys import shutil from time import perf_counter from collections import defaultdict from datetime i ......
The University of Queensland
The University of Queensland The University of Queensland 是一所位于澳大利亚昆士兰州布里斯班的公立研究型大学，成立于1909年，是澳大利亚八大名校之一。这所大学有 MBA 项目，属于商学院的研究生课程。如果你想了解更多关于这个学校和 MBA ......
django python manage.py migrate 后报错字段长度超了 django.db.utils.OperationalError: (1118 'Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535.
现象： 在models.py 将CharField字段的maxlength=修改后，执行ython manage.py migrate 报错django.db.utils.OperationalError: (1118 'Row size too large. The maximum row siz ......
[Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
[Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found" vi /etc/yum.repos.d/epel.repo enabled=0vi /etc/yum/pluginconf.d/fastest ......
R语言代做编程辅导ASSIGNMENT FOUR - RANDOM GRAPHS（附答案）
全文链接：https://tecdat.cn/?p=33183 PROBLEM 1) Creating Random Adjacency Matrices Script Name: adjMatrix Input: n... The number of vertices in the graph p ......
Sum in Binary Tree
Sum in Binary Tree time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vanya really likes mat ......
【Docker】报错：Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
安装完docker，运行指令时，出现了以下错误提示： Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fva ......
CF420E Playing the ball
## Description 程序员不能总是整天坐着编程。有时站起来离开办公桌，休息一下，与同事闲聊，甚至玩一会，也是十分好的主意。F 公司的程序员就特别喜欢一种球类游戏。 让我们想象一个在笛卡尔坐标系平面上玩的游戏。玩家坐落在点 $(0,0)$ 上，选择任意一个方向，扔出球。飞了一会儿的球在距离原 ......
Top-level await 新特性（ERROR: Top-level await is not available in the configured target environment (“chrome87”.....}）
Top-level await 新特性 「ECMAScript」提案 Top-level await 由 Myles Borins 提出，它可以让你在模块的最高层中使用 await 操作符。在这之前，你只能通过在 async 函数或 async generators 中使用 await 操作符。To ......
Exploiting Noise as a Resource for Computation and Learning in Spiking Neural Networks
郑重声明：原文参见标题，如有侵权，请联系作者，将会撤销发布！ https://arxiv.org/abs/2305.16044 Summary Keywords Introduction Results Noisy spiking neural network and noise-driven le ......
How to save a web page as a long screenshot in its entirety? How to save a batch of screenshots of web pages? High-definition pictures, multiple formats
How to save a web page as a long screenshot in its entirety? How to save a batch of screenshots of web pages? High-definition pictures, multiple forma... ......
Android studio 安装应用出现 The application could not be installed: INSTALL_FAILED_USER_RESTRICTED 错误
### 错误详情 ``` Installation did not succeed. The application could not be installed: INSTALL_FAILED_USER_RESTRICTED List of apks: [0] '/Users/topjoy/git ......