题库 总和leetcode 39

Leetcode 151. 反转字符串中的单词(Reverse words in a string)

[题目链接](https://leetcode.cn/problems/reverse-words-in-a-string) 给你一个字符串 s ,请你反转字符串中 单词 的顺序。 单词 是由非空格字符组成的字符串。s 中使用至少一个空格将字符串中的 单词 分隔开。 返回 单词 顺序颠倒且 单词 之 ......
字符串 单词 字符 Leetcode Reverse

LeetCode46全排列(回溯入门)

### 欢迎访问我的GitHub > 这里分类和汇总了欣宸的全部原创(含配套源码):[https://github.com/zq2599/blog_demos](https://github.com/zq2599/blog_demos) ### 题目描述 - 难度:中等 - 给定一个不含重复数字的数 ......
LeetCode 46

[LeetCode] 2240. Number of Ways to Buy Pens and Pencils

You are given an integer total indicating the amount of money you have. You are also given two integers cost1 and cost2 indicating the price of a pen ......
LeetCode Pencils Number 2240 Ways

What's the difference between Async Await and Promise in JavaScript All In One

# What's the difference between Async Await and Promise in JavaScript All In One > `Async` vs `Promise` ## demos --> ## (🐞 反爬虫测试!打击盗版⚠️)如果你看到这个信息, 说明 ......
JavaScript difference Promise between Async

The repository 'http://mirrors.163.com/debian jessie Release' does not have a Release file.

设置Debian源为国内网易源 tee /etc/apt/sources.list << EOF deb http://mirrors.163.com/debian/ jessie main non-free contrib deb http://mirrors.163.com/debian/ je ......
Release repository mirrors debian jessie

print ("标签为" + str(train_set_y[:, index]) + ", 这是一个'" + classes[np.squeeze(train_set_y[:, index])].decode("utf-8") + "' 图片.")

这行代码使用 print 函数来输出一条信息。信息的内容是由多个字符串拼接而成的,其中包括 train_set_y 数组中指定索引处的值和 classes 数组中指定索引处的值。 首先,"标签为" 是一个字符串字面量。接下来,str(train_set_y[:, index]) 表示获取 train ......
quot train_set_y index train set

Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 1: 'no such table: Users'.

今天使用asp.net core + sqlite 创建了一个demo项目,本地运行一切正常。可以添加,修改,删除数据。一旦发布到服务器上(Linux系统)就报错,错误信息如下: ![](https://img2023.cnblogs.com/blog/2912666/202308/2912666- ......

39、生成树stp配置

交换机之间通过多条链路连接,可以提高网络的健壮性,但是由于环路问题会导致网络不通畅,解决方法就是通过配置生成数stp协议进行破坏,达到网络通畅的目的。 stp主要解决二层网络中环路的问题,比如网络中有环路产生网络风暴导致网络瘫痪,无法运行。 stp工作简介:开机,交换机之间互相发送BPDU,会导致接 ......
stp

【CF1528A】Parsa's Humongous Tree(树、动态规划)

**题目大意:** 给定一颗树,每个节点有两个数,为每个节点选择其中一个数,求所有相邻节点所选数之差的绝对值之和。 *** 考虑动态规划。 设$dp_{u,0}$为节点i选择较小的数,以节点$u$为根的子树对答案的贡献的最大值。 设$dp_{u,1}$为节点i选择较大的数,以节点$u$为根的子树对答 ......
Humongous 动态 1528A Parsa 1528

configure: error: Can't find GL/gl.h. Look for Mesa devel packages for your distro.

1. 安装文件查询工具 sudo apt install plocate 2. 查询头文件地址,shell命令: locate GL/gl.h 3. 为编译时指定其他的头文件查询地址: export CPLUS_INCLUDE_PATH=/usr/include ......
configure for packages distro error

train_dataset = h5py.File('datasets/train_catvnoncat.h5', "r")

这行代码的作用是使用 h5py 库中的 File 函数打开一个 HDF5 文件,并将其赋值给变量 train_dataset。 首先,'datasets/train_catvnoncat.h5' 是 HDF5 文件的路径。接下来,"r" 表示以只读模式打开该文件。最后,h5py.File() 函数打 ......

Leetcode 24. 两两交换链表中的节点(Swap nodes in pairs)

[题目链接](https://leetcode.cn/problems/swap-nodes-in-pairsn/) 给你一个链表,两两交换其中相邻的节点,并返回交换后链表的头节点。你必须在不修改节点内部的值的情况下完成本题(即,只能进行节点交换)。 示例 1: ![](https://img202 ......
节点 Leetcode nodes pairs Swap

[LeetCode][338]counting-bits

# Content Given an integer n, return an array ans of length n + 1 such that for each i (0 <= i <= n), ans[i] is the number of 1's in the binary repres ......
counting-bits LeetCode counting bits 338

【五期邹昱夫】CCF-A(TIFS'23)SAFELearning: Secure Aggregation in Federated Learning with Backdoor Detectability

> "Zhang, Zhuosheng, et al. "SAFELearning: Secure Aggregation in Federated Learning with Backdoor Detectability." IEEE Transactions on Information For ......

John's troubles began 原文(2023年口语考试模拟题1)

John Dancer’s troubles began at once when he walked into Holiday Hotel with his friend,Charlie.Together they went to the information desk.John said,“G ......
模拟题 口语 原文 troubles began

git log 出现Merge branch 'xxxx' of

场景: 多人合作开发时,同拉取远程仓库分支 Feature A开发者拉取Feature分支代码后在本地开发并commit 过, 但并未push到远程仓库。 B开发者拉取Feature分支代码后在本地开发并commit, 随后push到远程分支。 这时A开发者再push代码到远程分支会提示先 git ......
branch Merge 39 xxxx git

Python 字典的取值,“[]取值”和“get取值”的区别, stu['name']和stu.get('name')都可以取值,但是 stu['name']如果键写错的话,程序会报错,为了程序的健壮性,推荐使用get方式

Python 字典的取值,“[]取值”和“get取值”的区别, stu['name']和stu.get('name')都可以取值,但是 stu['name']如果键写错的话,程序会报错,为了程序的健壮性,推荐使用get方式 stu = {'name':'lfj', 'age':18} # get方式 ......
39 name 程序 get stu

python ModuleNotFoundError: No module named 'Util'问题解决方案

ModuleNotFoundError: No module named 'Util' 分两种情况来谈这个问题。 1.第一种是没有安装出现这个问题有如下解决方法: python2安装:pip install web.py python3安装:pip install web.py==0.40-dev1 ......

[LeetCode][337]house-robber-iii

# Content The thief has found himself a new place for his thievery again. There is only one entrance to this area, called root. Besides the root, each ......
house-robber-iii LeetCode robber house 337

银河麒麟桌面安装pyautogui后导入失败:display = Display(os.environ['DISPLAY'])

大家好我是Tarzan,今天在银河麒麟安装pyautogui后提示`DISPLAY`获取不到,uos上目前没有遇到这个问题,记录一下解决办法。 ### 安装pyautogui 1. 先安装一个库:`pip3 install pyscreeze==0.1.28` 2. 安装pyautogui: `pi ......
pyautogui 桌面 display Display DISPLAY

[LeetCode][322]coin-change

# Content You are given an integer array coins representing coins of different denominations and an integer amount representing a total amount of mone ......
coin-change LeetCode change coin 322

'socket' object has no attribute 'pending' #857

### 背景 > 使用websocket-client调用星火api出现上述错误 ### 原因 1.4.1及以下版本是根据sslopt来判断是否使用wss,但是url可能传的并不是wss前缀导致报错。 作者在后续版本中改成根据url是不是以wss://开头判断是不是ssl ![](https://i ......
39 attribute pending socket object

[LeetCode][312]burst-balloons

# Content You are given n balloons, indexed from 0 to n - 1. Each balloon is painted with a number on it represented by an array nums. You are asked t ......
burst-balloons LeetCode balloons burst 312

Tool are in unnamed module of loader 'app

这就是典型的类型转换问题,出现这个错误就说明类型转换有误 参考:https://blog.csdn.net/justleavel/article/details/128613595 跟泛型有关? 发现原因:有两个Tool类。。。其中调用的参数里是一个Tool类。。而实现类实现的是另一个Tool类。。 ......
unnamed module loader Tool are

Bugku-web39(CBC反转攻击)

![images](https://img2023.cnblogs.com/blog/1845942/202308/1845942-20230830085906487-1323608896.png) 传入cipher:: o0Na0VUpA9NNqK5lQTP3chZqec57H%2FAMEkq5Y ......
Bugku-web Bugku web CBC 39

[LeetCode] 2483. Minimum Penalty for a Shop

You are given the customer visit log of a shop represented by a 0-indexed string customers consisting only of characters 'N' and 'Y': if the ith chara ......
LeetCode Minimum Penalty 2483 Shop

【五期邹昱夫】CCF-A(SP'23)3DFed: Adaptive and Extensible Framework for Covert Backdoor Attack in Federated Learning

> "Li, Haoyang, et al. "3DFed: Adaptive and Extensible Framework for Covert Backdoor Attack in Federated Learning." 2023 IEEE Symposium on Security an ......

leetcode & c++多线程刷题日志

## 1.按序打印 [按序打印](https://leetcode.cn/problems/print-in-order/description/) **解法** + 1. 互斥锁 ```c++ class Foo { mutex mtx1, mtx2; public: Foo() { mtx1.l ......
线程 leetcode 日志 amp

docker build过程中遇到错误qemu-x86_64: Could not open '/lib64/ld-linux-x86-64.so.2': No such file or directory

```text Removing intermediate container 70af516d5d6b > a69229847153 Step 5/6 : RUN GO111MODULE="on" go get github.com/jsonnet-bundler/jsonnet-bundler/ ......
ld-linux-x directory 64 错误 过程

PyQt/PySide's qwindows.dll qwindowsvistastyle.dll is corrupted by UPX

Windows 10 64-bits Python 3.8.10 64-bits PySide2 5.15.2 PyInstaller 4.3 UPX 4.1.0 it raises: > "This application failed to start because no Qt platfor ......