partiton another problem 1175g

NEFU OJ Problem1356 帽儿山奇怪的棋盘 题解

帽儿山奇怪的棋盘 题目: Time Limit:1000ms Memory Limit:65535K Description 军哥来到了帽儿山,发现有两位神人在顶上对弈。棋盘长成下图的模样: 每个点都有一个编号:由上到下,由左到右,依次编号为 1、2……12。两位神人轮流博 弈,每一轮操作的一方可以 ......
帽儿 题解 棋盘 Problem NEFU

[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 ......
Another example FCSA PG of

environmental problem--deforestation

Deforestation is a serious environmental issue in China and many other countries. The main reasons for deforestation are economic development needs, u ......
environmental deforestation problem

修改token有效期工具 Another Redis Desktop Manager

1、获取到redis的host和密码 登录 2、根据要使用的token查询出数据, 修改 TTL字段值未 -1 保存即可。 ......
有效期 Another Desktop Manager 工具

Trailhead - 证书维护挑战失败 提示Whoops, looks like there was a problem. Please try again.

前情提要 当进行Trailhead证书维护的时候,往往会需要完成答题+挑战(Challenge)。然而有时候会遇到下述的问题👉代码正确(至少看起来)并且在页面验证通过,在Challenge里Check时却提示”Whoops, looks like there was a problem. Plea ......
Trailhead 证书 problem Please Whoops

China's Air Pollution Problem

China's Air Pollution Problem Air pollution is a global problem, but China is particularly serious about it. In recent years, China's air quality inde ......
Pollution Problem China Air 39

Solution to OpenSSL Connection Problems With Github

Problems Uploading Files with Git Sometimes we can use git tool to successfully upload projects to Github, but in other time especially after a period ......
Connection Solution Problems OpenSSL Github

https://www.luogu.com.cn/problem/P1104 生日问题笔记

标记:当出现一组数据中有多个数据,这个时候我们常考虑用结构体去编写代码,因为结构体可以使得 几个本不相关的变量联系起来,并且当一个变量改变时,其他变量也会跟着改变,这使得代码变得简单。 使用结构体后,我们在读入数据之后,我们用sort 进行排序,并且构造一个cmp函数,使得我们的排序 满足题目的要求 ......
problem 生日 笔记 问题 https

Urbanization Problem in CHINA

Urbanization Rapid urbanization has taken place in China ever since the economic development and socioeconomic changes of the 1980s. Approximately 40% ......
Urbanization Problem CHINA in

2021 CCPC桂林 B.A Plus B Problem (线段树)

传送门 线段树大模拟!。考验线段树功底的时候来了,作为队伍的史山选手,写这么史也是情有可原的。 #include <bits/stdc++.h> using ll = long long; const int INF = 0x3f3f3f3f; const int N = 1e6 + 10; typ ......
线段 Problem 2021 CCPC Plus

CF1073G Yet Another LCP Problem

一道 *2600 调了一年,代码细节是有点粪了,但自己菜也是挺菜的。/oh/oh 考虑容斥,令 \(f(A)=\sum\limits_{i,j\in A}\operatorname{lcp}(i,j)\),那么答案就是 \(f(A\cup B)-f(A)-f(B)\)(这里的并表示可重集合并)。 令 ......
Another Problem 1073G 1073 Yet

SSL certificate problem: unable to get local issuer certificate 错误解决

终端报了如下错误git SSL certificate problem: unable to get local issuer certificate 这个问题是由于没有配置信任的服务器HTTPS验证。默认,cURL被设为不信任任何CAs,就是说,它不信任任何服务器验证。在网上查了很多方法,最终使用 ......
certificate 错误 problem issuer unable

[HDU 3483] A Very Simple Problem 题解

题目描述 快速求出下面式子的值: \[\left(\sum\limits_{k=1}^{N}k^{x}x^{k}\right)\bmod M \]其中 \(1 ≤ N, M ≤ 2\times 10^9\), 并且 \(1 ≤ x ≤ 50\)。 题解 (solution) 对于该类题目,\(N\) ......
题解 Problem Simple 3483 Very

题解 CF903G【Yet Another Maxflow Problem】

加边 \(A_n\stackrel{0}{\to}A_{n+1}\),\(B_0\stackrel{0}{\to}B_1\)。称形如 \(A_i\to A_{i+1}\) 的边为左部边,形如 \(B_j\to B_{j+1}\) 的边为右部边,形如 \(A_i\to B_j\) 的边为中间边。 根据 ......
题解 Another Maxflow Problem 903G

#结论#CF1776G Another Wine Tasting Event

题目 给定一个长度为 \(2n-1\) 的字符串,问一组使得 \(n\) 个长度不小于 \(n\) 的区间中字母W的个数相等的字母W的个数 分析 首先结论就是 \(\max_{i=1}^n\{cW[i\dots i+n-1]\}\) 一定是合法解 以这组解为基准,左右端点如果向外扩展那么个数一定会更 ......
结论 Another Tasting Event 1776

BUG:cURL error 60: SSL certificate problem: unable to get local issuer certificate

PHP ssl 证书问题 (我的环境是phpstudy) 解决方案: 1.https://curl.se/docs/caextract.html 打开网址,下载最新PEM 2.将证书放进对应PHP版本extras/ssl 文件里面 3.修改对应版本的PHP.INI 4.重启PHP 问题解决 ......
certificate problem issuer unable error

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

[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

Paper Reading: Sample and feature selecting based ensemble learning for imbalanced problems

为了克服现有集成方法的缺点,本文提出一种新的混合集成策略——样本和特征选择混合集成学习 SFSHEL。SFSHEL 考虑基于聚类的分层对大多数样本进行欠采样,并采用滑动窗口机制同时生成多样性的特征子集。然后将经过验证训练的权重分配给不同的基学习器,最后 SFSHEL 通过加权投票进行预测。SFSHE... ......

CF513G3 Inversions problem

CF513G3 Inversions problem 更好的阅读体验 推式子题。 task 1 直接爆搜,统计每种结果的答案,最后加在一起除以总方案数。 task 2 数据范围变大,显然不能记录整个数组的状态,考虑拆位算贡献。设 \(f_{i,j,k}\) 表示交换了 \(k\) 步,\((i,j) ......
Inversions problem 513G 513 CF

Codeforces Round 893 (Div. 2) C. Yet Another Permutation Problem

有一个 \(gcd\) 游戏,按以下步骤进行: 选择一个 \(n\) 的排列 \(p_1, p_2, \cdots, p_n\) 。 对于每个 \(i\) ,\(d_i = gcd(p_i, p_{i \% n + 1})\) 排列 \(p\) 的 \(score\) 为数组 \([d_1, d_2 ......
Permutation Codeforces Another Problem Round

[910] Copy a file to another directory with a new name in Python

To copy a file to another directory with a new name in Python, you can use the shutil library. Here's how you can do it: import shutil # Specify the s ......
directory another Python Copy file

【转载】How to solve the problem that getting timestamp from Mysql database is 8 hours earlier than the normal time

This article introduces the relevant knowledge of "how to solve the problem of obtaining timestamp from Mysql database 8 hours earlier than the normal ......
the timestamp database problem getting

Gym101064L The Knapsack problem

CF 传送门 发现物品的体积很小,尝试从此处入手。 设 \(K\) 为最大的物品体积。把背包体积 \(m\) 分成差不超过 \(K\) 的两部分,然后合并。这样需要求出 \(f(\frac{m}{2} - K \sim \frac{m}{2} + K)\)。 递归地,可以发现需要求出 \(f(\fr ......
Knapsack 101064L problem 101064 Gym

CF1870E Another MEX Problem 题解

原题 翻译 首先 \(O(n^3)\) 的 dp 是 simple 的。设 \(dp_{i,j}\) 表示前 \(i\) 个划分后异或和为 \(j\) 是否可行。因为转移不具有连续性,故bitset无法优化(其实 \(O(\frac{n^3}{\omega})\) 也跑不过去) 官方做法: 定义对于 ......
题解 Another Problem 1870E 1870

洛谷P1001 Problem A+B(Python)

关键在洛谷的数据输入的时候是在同一行输入的,如果写两个input(),就是在两行输入。 这里就要用到一个分割字符串的函数split()。其中,括号内字符为分割该字符串的分隔符。 代码如下(不放也行吧) a,b=input().split() print(int(a)+int(b)) ......
Problem Python P1001 1001

GDCPC2023 L Classic Problem

洛谷传送门 CF 传送门 对于一个点 \(x\),若 \(\exists i, u_i = x \lor v_i = x\),则称 \(x\) 为特殊点,否则为一般点。 首先发现,对于极长的一段 \([l, r]\) 满足 \(l \sim r\) 均为一般点,那么可以连边 \((l, l + 1) ......
Classic Problem GDCPC 2023

为什么我们需要不断的开发不同的机器学习模型 —— Do we Need Hundreds of Classifiers to Solve Real World Classification Problems?

论文: 《Do we Need Hundreds of Classifiers to Solve Real World Classification Problems?》 论文地址: https://jmlr.org/papers/volume15/delgado14a/delgado14a.pdf ......

题解 CF457F 【An easy problem about trees】

尝试理解,感谢 cz_xuyixuan 的题解。 算作是很多情况的补充说明。 我们不妨先二分答案,将 \(\ge mid\) 的设为 \(1\),\(<mid\) 的设为 \(0\),于是问题转化为了权值均为 \(0/1\) 的版本。 我们称一棵树的大小为其非叶节点数。 我们称一棵大小为奇数的树为奇 ......
题解 problem about trees 457F