numbers greater than sum
题解 CF1842H【Tenzing and Random Real Numbers】
看了题解。好难受，想用积分求概率，算了半天。发现没啥规律，不是不能算，就是太可怕了。 ## Problem 有 $n$ 个 $[0,1]$ 范围内的均匀随机变量 $x_{1\cdots n}$ 和 $m$ 条限制，每条限制形如 $x_i+x_j\le 1$ 或 $x_i+x_j\ge 1$。请你求出 ......
vue: number addition
单页应用：（Single Page App, SPA）体现了其强大的优势。页面是局部刷新的，响应速度快，不需要每次加载所有的CSS/JS。前后端分离，前端（手机端）不受后端（服务器端）的开发语言的限制。Angular,React ,Vue.js框架都是很好的选择。 https://github.co ......
linux 中 md5sum -c选项
001、 [root@PC1 test01]# ls [root@PC1 test01]# seq 5 > a.txt; seq 3 > b.txt ## 生成测试数据 [root@PC1 test01]# ls a.txt b.txt [root@PC1 test01]# md5sum b.txt ......
Atcoder AGC062C Mex of Subset Sum
对 $a_i$ 从小到大进行排序，因为想到若 $ a_{i - 1}$ 肯定是能保证取不到的。 对排完序的 $a_i$ 做一个前缀和 $s_i = \sum\limits_{j = 1}^n$，令 $A_i$ 为 $a_{1\sim i}$ 中无法表示为子序列之和且 $ s_{i - 1} > x$ ......
Doris写入数据异常提示actual column number in csv file is less than schema column number
## 版本信息： - Flink 1.17.1 - Doris 1.2.3 - Flink Doris Connector 1.4.0 ## 写入方式 采用 String 数据流，依照社区网站的[样例代码](https://doris.apache.org/zh-CN/docs/1.2/ecosys ......
PROPERTIES OF SQUARE NUMBERS
When a number is multiplied by itself, the resulting number is called as a square number. For example, when we multiply 5 by 5, we get 52 = 25. Here, ......
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 ......
特殊类型 调用Number函数
// 特殊类型 null a = null; a = Number(a); console.log("null a转换后类型 = " + typeof a); console.log("null a转换后的值 = " + a); // 特殊类型 undefined a = undefined; a ......
Powerful-Numbers
title: Powerful Numbers feature: false mathjax: true date: 2022-09-08 09:04:35 tags: - 数论 categories: Math cover: https://pic.imgdb.cn/item/6319538116 ......
PAT-甲级-1007 Maximum Subsequence Sum C++
Given a sequence of K integers { N1, N2, ..., NK }. A continuous subsequence is defined to be { Ni, Ni+1, ..., Nj } where 1≤i≤j≤K. The Maximum S ......
[LeetCode] 931. Minimum Falling Path Sum
Given an n x n array of integers matrix, return the minimum sum of any falling path through matrix. A falling path starts at any element in the first ......
k8s集群node NotReady处理流程-->kubelet状态error，并伴有报错：kubelet.service has more than one ExecStart=setting,which is only allowed for Type=oneshot services.Refusing
## k8s集群node NotReady处理流程-->kubelet状态error > //20230712 集群有节点NotReady kubelet状态error，并伴有报错：```kubelet.service has more than one ExecStart=setting,whic ......
AT_agc062_c [AGC062C] Mex of Subset Sum 思维妙妙题--zhengjun
思路比较巧妙。 首先排序。 考虑目前维护出 $a_{1 \sim i}$ 不能表示的数的集合 $S$。 考虑如何加入 $a_{i+1}$。 如果当前 $sum$ $$S'=S\cup [sum+1,a_{i+1}-1] \cup \{x+a_{i+1}|x\in S\}$$ - 若 $|S\cup ......
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 ......
python3使用pip安装wordcloud报错error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
背景： 使用的是Anaconda集成环境，python版本是：3.10，安装wordcloud包，使用的命令是：pip install wordcloud，出现报错：error: Microsoft Visual C++ 14.0 or greater is required. Get it wit ......
Maximum Sum
Maximum Sum time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given an array a1,a2 ......
【论文解析】EJOR 2011 A clustering procedure for reducing the number of representative solutions in the Pareto Front of multiobjective optimization problems
> 论文名称：A clustering procedure for reducing the number of representative solutions in the Pareto Front of multiobjective optimization problems ### 动机 假 ......
CF1817E Half-sum
`greedy` 把数分成两个集合 $A,B$，且 $A 定理 $1$ > > $A$ 集合合并的顺序一定是从大往小的，$B$ 集合是从小往大的。 应该很好猜到，但是证明需要一点推导。 大概可以局部到 $x,y,z,w$ 四个数的情况。 几种情况分别是 $\frac{x+y}{8}+\frac{z} ......
斯特林数 STIRLING NUMBERS
## 第二类斯特林数 定义：符号 $\begin{Bmatrix}n\\ k\end{Bmatrix}$ 表示有 $n$ 件物品的集合划分成 $k$ 个非空子集的方案数。例如，将有一个有 $4$ 个元素的集合分成两部分有 $7$ 种方法： $$\rm \{1,2,3\}∪\{4\}, \ \{1,2 ......
ARC107F Sum of Abs
# ARC107F Sum of Abs **[题目传送门——洛谷](https://www.luogu.com.cn/problem/AT_arc107_f)** **[题目传送门——AtCoder](https://atcoder.jp/contests/arc107/tasks/arc107_ ......
[LeetCode] 2600. K Items With the Maximum Sum
There is a bag that consists of items, each item has a number 1, 0, or -1 written on it. You are given four non-negative integers numOnes, numZeros, n ......
920 F. SUM and REPLACE
[toc] # F. SUM and REPLACE 题目[传送门](https://codeforces.com/contest/920/problem/F) ## 题意： 给你n个数，按照顺序排列，再进行m次操作。每次操作要么是问你区间[l,r]的和，要么是让你将区间[l,r]的所有数$a_i= ......
「CF1637H」Minimize Inversions Number
# 题目 [点这里](https://codeforces.com/problemset/problem/1637/H)看题目。 给定一个 $1\sim n$ 的排列 $p$。 你可以进行下列操作正好一次： - 选定 $p$ 的一个长度为 $k$ 的子序列，并将其按照相同的顺序移动到 $p$ 的最前 ......
[LeetCode] 2679. Sum in a Matrix
You are given a 0-indexed 2D integer array nums. Initially, your score is 0. Perform the following operations until the matrix becomes empty: From eac ......
elasticsearch group sum top 10
``` { "version": true, "size": 0, "sort": [ { "request_length": { "order": "desc", "unmapped_type": "boolean" } } ], "stored_fields": [ "*" ], "script ......
AtCoder Regular Contest 163 D Sum of SCC
[洛谷传送门](https://www.luogu.com.cn/problem/AT_arc163_d "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/arc163/tasks/arc163_d "AtCoder 传送门") 怎么连这种相对传统 ......
每日一题 力扣 445 https://leetcode.cn/problems/add-two-numbers-ii/
可以直接用栈去做就行，逆序想到栈的做法 然后算完一个就直接赋值给答案数组 我用的是常见 public ListNode addTwoNumbers(ListNode l1, ListNode l2) { int sizeA=0; int sizeB=0; ListNode start=l1; Lis ......
convert string list to number list
``` #string with integers sepated by spaces string1="1 2 3 4 5 6 7 8" print("Actual String containing integers: ",string1) print("Type of string: ",ty ......
Cross-thread operation not valid: Control 'txtMessage' accessed from a thread other than the thread it was created on.
Winform TextBox Cross-thread operation not valid: Control 'txtMessage' accessed from a thread other than the thread it was created on. (330条消息) 解决Cros ......