check usage cdb the

Codeforces Round 855 (Div. 3) C. Powering the Hero

有 \(n\) 张卡的卡堆,你可以自顶向下抽卡。装备卡显示数值为 \(a_i(a_i>0)\) ,英雄卡显示数值为 \(a_i = 0\) 。 如果是装备卡,你可以将卡抽出放在装备堆。如果是英雄卡,你可以将装备堆顶端的一张数值为 \(x\) 的装备卡装备给英雄,英雄数值 \(+ x\) 。无论是否装 ......
Codeforces Powering Round Hero 855

救济金发放(The Dole Queue, UVa 133)

#include<stdio.h> #include<string.h> #define maxn 100 int n,k,m,a[25]; int left, chance; int win, lose; char s[maxn], s2[maxn]; int go(int p, int d, i ......
救济金 Queue Dole The 133

The 2021 CCPC Guangzhou Onsite

Preface 逆天PKU,出的什么寄吧东西,做题全靠打表找规律,一场比赛全是\(\bmod 998244353\) 4题成功从金到铜完美区分,我们队VP的时候两个半小时就下班了,看祁神写了3h的大几何题L 虽然徐神开场一眼看出了F是个诈骗题,但推了1h无果还是要上机打表找规律才发现式子 最后和徐神 ......
Guangzhou Onsite 2021 CCPC The

The 2021 CCPC Guilin Onsite (XXII Open Cup, Grand Prix of EDG)

Preface 昨天下午16:30~21:30刚打完CCPC2021的广州,今天早上九点又开始打这场桂林,压力拉满了属于是 这场比起昨天那场良心太多了,开场还挺顺(虽然因为写Dijkstra偷懒TLE了四发),但开题啥的都是见一个会一个 中期虽然有点卡但因为祁神会了几何所以没有空机,然后再点完外卖后 ......
Guilin Onsite Grand 2021 CCPC

Unexpected character '=' (code 61); expected a semi-colon after the reference for entity 'useSSL' at [row,col,system-id]: [8,75,"file:/usr/bigdata/hive-3.1.3/conf/hive-site.xml"]

在初始化hive时报错,出现如下问题: 错误原因:hive-site.xml 配置文件中,数据库的地址带有 & 符号。 将数据库地址中的 & 符号调整为 &amp;,详情如下: 再次初始化hive,执行结果如下: ......
39 hive quot Unexpected semi-colon

The innodb_system data file 'ibdata1' must be writable

MySQL无法启动 Active: deactivating (stop-sigterm) (Result: exit-code) 查看配置文件中的日志存储位置: view /etc/my.cnf 查看日志存储文件位置:/var/log/mysqld.log 文件错误提示:The innodb_sy ......
innodb_system writable ibdata1 innodb ibdata

The JSON value of length n is too large and not supported

https://github.com/dotnet/runtime/issues/39953 I'm referring to this issue #30746 that was closed with limit of 125MB staying fixed opposed to being c ......
supported length value large JSON

Docker启动失败,报错Cannot connect to the Docker daemon at unix:///var/run/docker 完美解决方案

问题描述: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 首次安装docker后,服务没有自启动 解决方案: 查看docker状态 1 service ......
Docker 解决方案 connect 方案 Cannot

Docker启动报错:Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

问题描述: Docker启动报错:Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? Cannot connect to the Docker daemon ......
Docker daemon docker the connect

sonarqube启动报错:You must address the points described in the following [2] lines before starting Elasticsearch.bootstrap check XXXmax numberXXXfor user[sonar] is too low .XXX check the logs at XXX/.log

You must address the points described in the following [2] lines before starting Elasticsearch.bootstrap check failure [1] of [2]: max number of threa ......

B. Chips on the Board

B. Chips on the Board 题意:保证在n*n的棋盘上对于每一个点的列或者行都有一个筹码,也可以两个都有,问最小筹码:对于每一个筹码计算:a[i]+b[i]; 要使每个点都满足,最少的筹码的个数应该为n 1.对于行来看,如果每一行都有一个筹码,那么列就可以随便填:直接全选择最小的列 ......
Chips Board the on

Vivado生成bitstream时报错[Opt 31-67] Problem: A LUT3 cell in the design is missing a connection on input pin I1, which is used by the LUT equation

这个原因主要是因为有一个引脚没有用到,解决方法。 1、打开Schematic。 2、根据提示的模块去找,比如说我的报错。 [Opt 31-67] Problem: A LUT3 cell in the design is missing a connection on input pin I1, w ......
connection LUT bitstream the equation

[918] Copy the formatting from one cell in a table of a Word document to another cell in Python

To copy the formatting from one cell in a table of a Word document to another cell, you can use the python-docx library in Python. Here's a step-by-st ......
cell formatting document another Python

[919] Change the horizontal alignment of a cell to center within a table of a Word document using Python

To change the horizontal alignment of a cell to center within a table of a Word document using Python and the python-docx library, you can set the ali ......
horizontal alignment document Change Python

[920] Copy the font style from one cell in a table of a Word document to another cell using Python

To copy the font style from one cell in a table of a Word document to another cell using Python and the python-docx library, you can access the font p ......
cell document another Python style

Codeforces Round 872 (Div. 2) B. LuoTianyi and the Table

给一个 \(n \times m\) 的矩阵和 \(n \times m\) 个数,你需要把这些数填入矩阵。保证 \[\sum_{i=1}^n \sum_{j=1}^m \left ( \mathop{max}\limits_{1 \leq x \leq i, 1 \leq y \leq j} a_ ......
Codeforces LuoTianyi Round Table 872

CF367C Sereja and the Arrangement of Numbers

这题首先上来会发现题目中的很多信息都是假的,核心就是问要构造一个\(x\)个点的完全图至少要多长的序列 我们把序列中相邻的两个元素看作图上的一条边,则可以把问题转化为:给一个\(x\)个点的完全图,问至少要走多长的路径才可以遍历图中的所有边至少一次 简单讨论下会发现当\(x\)为奇数时,此时图中每个 ......
Arrangement Numbers Sereja 367C 367

flex and bison usage in mysql

query parsing in mysql mysql source code version: 8.0.34 (from MYSQL_VERSION file) This an article from questions to understandings. which file does m ......
bison usage mysql flex and

[题解]CF1881G Anya and the Mysterious String

思路 发现如果一个字符串中有长度大于等于 \(2\) 回文子串,必定有长度为 \(2\) 的回文子串或长度为 \(3\) 的回文子串,并且形如:aa 和 aba。 所以考虑用线段树这两种情况。维护一段区间的最左、次左、最右、次右的元素,同时用两个标记变量 \(f_1,f_2\) 分别表示这个区间中是 ......
题解 Mysterious String 1881G 1881

PAT_A 1038 Recover the Smallest Number

Given a collection of number segments, you are supposed to recover the smallest number from them. For example, given { 32, 321, 3214, 0229, 87 }, we c ......
Smallest Recover Number PAT_A 1038

How to get macOS CPU details information in the command line All In One

How to get macOS CPU details information in the command line All In One 如何通过命令行获取 macOS CPU 的详细信息 ......
information details command macOS line

[QOJ6555] The 2nd Universal Cup. Stage 5. J : Sets May Be Good

先给 EI 磕三个 首先考虑用 \(n\) 个变量 \(x_1,x_2,\cdots,x_n\in\{0,1\}\) 表示第 \(i\) 个点选不选,那么导出子图的边数的奇偶性就是 \[f(x_1,x_2,\cdots,x_n)=\left(\sum_{(i,j)\in E}x_ix_j\right ......
Universal Stage 6555 Good Sets

asp.net core signalr 客户端调用服务端方法报:Error:Failed to invoke 'adduserToConnection' due to an error on the server

TS端调用方法为: connection.start() .then(() => { connection.invoke("adduserToConnection",account,connection.connectionId); }) .catch((err) => { console.erro ......

CF1257E The Contest

用桶存,做一遍前缀和,令 \(b_{x,y}\) 表示序列 \(x\) 包含 \(1\sim y\) 的数字个数。考虑枚举第一个序列保留的前缀 \(1\sim i\),对于第三个序列,如果其保留了后缀 \(j\sim n(i<j)\),考虑哪些数需要被移掉,那么答案就是: \[b_{1,n}-b_{ ......
Contest 1257E 1257 The CF

The 2nd Universal Cup. Stage 5: Northern J Sets May Be Good

题解 我们考虑计算 \(\sum_{S\subseteq\{1,2,3,\cdots,n\}} (-1)^{cnt(S)}\),这里 \(cnt(S)\) 表示 \(S\) 集合的导出子图的边数。 我们记 \(x_i=[i\in S]\)。 我们考虑删掉 \(n\) 号点。 注意到如果 \(x_i\ ......
Universal Northern Stage Good Sets

【题解 CF840C & P4448】 On the Bench & 球球的排列

On the Bench 题面翻译 给定一个序列 \(a(a_i\le 10^9)\),长度为 \(n(n\le 300)\)。 试求有多少 \(1\) 到 \(n\) 的排列 \(p_i\),满足对于任意的 \(2\le i\le n\) 有 \(a_{p_{i-1}}\times a_{p_i} ......
题解 amp Bench P4448 4448

Go - Changing the Timing for Running Performance Tests

Problem: You want to run performance tests for a specific duration or a specific number of iterations. Solution: You can increase the minimum duration ......
Performance Changing Running Timing Tests

论文阅读:Knowledge Distillation via the Target-aware Transformer

摘要 Knowledge distillation becomes a de facto standard to improve the performance of small neural networks. 知识蒸馏成为提高小型神经网络性能的事实上的标准。 Most of the previo ......

Nginx配置错误:connect() failed (10061: No connection could be made because the target machine actively refused it) while connecting to upstream

问题描述 今天本打算学一下Nginx反向代理发送请求到OpenResty(其实也就是个Nginx,可以把它理解成Anaconda中的python版本),再通过OpenResty使用Lua脚本向Redis或数据库查找缓存来着,在配环境的时候报了个502错误。 我把我的环境描述下,这样如果有遇到这个问题 ......