hong kong programming the

P5299 [PKUWC2018] Slay the Spire

P5299 [PKUWC2018] Slay the Spire 洛谷:P5299 [PKUWC2018] Slay the Spire LOJ:#2538. 「PKUWC2018」Slay the Spire 前言:请分清楚 使用 和 抽取。九条要 抽取 \(m\) 张牌,但只会 使用 \(k\) ......
P5299 PKUWC Spire 5299 2018

The name org.freedesktop.secrets was not provided by any .service files 报错问题

在搭建cicd docker 靶场的时候出现这个问题,由于是第一次遇到,就想记录下来 通过各种搜索资料搜索 发现只要安装如下包就没问题 1 apt -y install gnome-keyring 这样做之后,一切都可以 这样就可以了 ......
freedesktop provided secrets service 问题

CF1575I Illusions of the Desert

prologue 还是太菜了,这个 154 行的树剖20min才敲完。 analysis 首先,处理这个给到我们的这个式子。 \[\max(\mid a _ u + a _ v \mid, \mid a _ u - a _ v \mid) \]我们可以分类讨论: \(a > 0, b > 0\): ......
Illusions Desert 1575I 1575 the

2022 China Collegiate Programming Contest (CCPC) Guangzhou Onsite

Preface 好难啊这场广州站,不愧是5题金4题铜的超恶劣站,中档题普遍难度较高 但我感觉主要原因还是题目出的太偏向于DP了,AI是本质差不多的树上换根DP,M又是个数位DP,导致像我这种不擅长DP的人直接中期坐牢 但好在祁神大力切出了medium~hard的K题,然后最后一小时我把一直在想的A题 ......

The solution of P3012

problem & blog 很明显是个 DP。 于是我们定义 \(dp_{i,j,k}\) 为末尾的字符的 ASCII 码为 \(i\),有 \(j\) 个大写字母,\(k\) 个小写字母。 然后在枚举能接在 \(i\) 之后所有字母即可。 然后考虑 \(dp_{i,j,k}\) 给后面的 DP ......
solution P3012 3012 The of

The 2022 ICPC Asia Xi'an Regional Contest

C. Clone Ranran 最优解一定是先复制,在做题。最多只需要复制大约 30 次,直接枚举即可 #include <bits/stdc++.h> using namespace std; #define int long long int a , b, c; void solve(){ ci ......
Regional Contest 2022 ICPC Asia

Go - Logging to the System Log Service

Problem: You want to log in to the system log instead of your logfiles. Solution: Use the log/syslog package to write to syslog. Syslog is a standard ......
Logging Service System Log the

The solution of ABC144F

都不知道什么时候做的题了 problem & blog 一开始很容易想到枚举断边然后 DP 算代价。 于是很容易想到 DP 状态定义:设 \(dp_u\) 为从 \(u\) 出发到 \(n\) 的期望步数。 那么显然有 \(dp_u = \sum^{v_n}_{v_1} \dfrac{dp_{v_{ ......
solution 144F The ABC 144

vue_error_Runtime directive used on component with non-element root node. The directives will not function as intended

翻译: '运行时指令,用于非元素根节点的组件。这些指令将无法发挥预期的作用'; 这个错误发生在我将v-show放在自定义组件上时, 我想是因为自定义组件在渲染时会被自定义组件的内部元素替换, 因此设置是无效的 解决: 在自定义组件外加一个div, 把v-show写在div上 ......

2022 China Collegiate Programming Contest (CCPC) Mianyang Onsite

Preface 久违地VP一场,由于CCPC桂林在即因此最近就自主VP一下去年的CCPC 这场打的时候全队不在状态,签完到后我就因为A题一个corner case没考虑到卡了快两个小时 然后好不容易搞过去徐神上来有狂WA E题,最后也是喜提+11 后面写的D题也是需要特判,好家伙又是快到比赛结束才看 ......

Go - Change What Is Being Logged by the Standard Logger

Problem: You want to change what the standard logger logs. Solution: Use the SetFlags function to set flags and add fields to each log line. The defau ......
Standard Change Logged Logger Being

Gym 104270 The 2018 ICPC Asia Qingdao Regional Programming Contest (The 1st Universal Cup, Stage 9: Qingdao)

A. Sequence and Sequence B. Kawa Exam 可以发现,对答案会产生影响的只有割边,把所有边双缩起来,然后就是一个森林。 考虑一个树的时候怎么做,就是对于每条边求出这条边两端的众数个数,考虑线段树合并,每次动态维护子树内的众数和子树外的众数。 #include<iost ......
Qingdao Programming The Universal Regional

Go - Using Multiple Versions of the Same Dependent Packages

Problem: You want to use multiple versions of the same dependent packages in your code. Solution: Use the replace directive in the go.mod file to rena ......
Dependent Multiple Packages Versions Using

Road of the King

2023-09-28 题目 Road of the King 难度&重要性(1~10):8.5 题目来源 luogu 题目算法 (纯)dp 解题思路 一道非常好而有意思的题目,码量巨短。 首先观察数据范围,发现是 \(n\le 300\),考虑 \(O(n^3)\) 的 dp。 主要的难点在于如何去 ......
Road King the of

pip安装包报错:PS C:\Users\Administrator\Desktop> pip install request ERROR: Could not find a version that satisfies the requirement request (from versions: none)

PS C:\Users\Administrator\Desktop> pip install requestERROR: Could not find a version that satisfies the requirement request (from versions: none)ERRO ......

The Out-of-Memory Syndrome, or: Why Do I Still Need a Pagefile?

The Out-of-Memory Syndrome, or: Why Do I Still Need a Pagefile? July 19, 2016 aziusMemory Management 13 Comments Windows’ memory management—specifical ......
Out-of-Memory Syndrome Pagefile Memory Still

qoj6735. Tree (The 1st Universal Cup. Stage 22: Shaanxi)

https://qoj.ac/contest/1287/problem/6735 考虑定一个根,然后把每个点的点权附属在父边权上,让每条边的边权变成一个 pair。 这样,一个符合条件的路径需要满足的条件是:路径内所有边的边权 pair 相同,以及 路径根节点(lca)的颜色符合。 对于当前树上每个 ......
Universal Shaanxi Stage 6735 Tree

Windows: run all program as administrator

pgedit.msc secpol.msc 当然如果如果是家庭版用户没有组策略是无法像上述一样操作的,我们可以打开注册表编辑器(运行regedit),展开注册表到 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policie ......
administrator Windows program run all

2022 China Collegiate Programming Contest (CCPC) Mianyang Onsite GCHMAD

2022 China Collegiate Programming Contest (CCPC) Mianyang Onsite 目录2022 China Collegiate Programming Contest (CCPC) Mianyang OnsiteVP 情况G - Let Them E ......

Snapshot appears to have been created more than one day into the future!

Snapshot appears to have been created more than one day into the future! Raspberry PI 4b上安装freebsd13.2 aarch系统后,使用ssh链接,输入portsnap fetch extract命令,提示: ......
Snapshot appears created future have

The 2021 China Collegiate Programming Contest (Harbin) JBEIDG

The 2021 China Collegiate Programming Contest (Harbin) 目录The 2021 China Collegiate Programming Contest (Harbin)VP概况J - Local MinimumB - Magical Subseq ......
Programming Collegiate Contest Harbin JBEIDG

Gym 104172 The 2023 ICPC Asia Hong Kong Regional Programming Contest (The 1st Universal Cup, Stage 2Hong Kong)

A. TreeScript 令 \(f_u\) 表示 \(u\) 及 \(u\) 子树中的节点都创建的最小数量。 如果 \(u\) 只有一个儿子,那么可以将子树最后一个节点存储在当前的 \(u\) 中,答案就是 \(f_v\)。 若 \(u\) 有多个儿子: 令 \(t=\max\limits_{v ......
Hong Kong Programming The Universal

KEYENCE Programming Contest 2019

A - Beginning 排序以后判断一下是否为 \(1,4,7,9\) 即可。 #include<iostream> #include<cstdio> #include<algorithm> using namespace std; const int N=10; int a[N]; int m ......
Programming KEYENCE Contest 2019

NIKKEI Programming Contest 2019

A - Subscribers 最小值为 \(\min(A,B)\),最大值为 \(\max(A+B-n,0)\)。 #include<iostream> #include<cstdio> using namespace std; int n,A,B; int main() { scanf("%d% ......
Programming Contest NIKKEI 2019

NOMURA Programming Competition 2020

A - Study Scheduling 先算出总时间,然后在减去 \(K\) 就好了。 代码: #include<iostream> #include<cstdio> using namespace std; int h1,m1,h2,m2,k; int main() { scanf("%d%d% ......
Competition Programming NOMURA 2020

Yahoo Programming Contest 2019

A - Anti-Adjacency 合法的条件即为 \(k\leq \lceil \frac{n}{2} \rceil\)。 #include<iostream> #include<cstdio> using namespace std; int n,k; int main() { scanf(" ......
Programming Contest Yahoo 2019

Social Infrastructure Information Systems Division, Hitachi Programming Contest 2020

A - Hitachi String 满足条件的串即为串长为偶数且相邻两个均为为 hi,直接判断即可。 代码: #include<iostream> #include<cstdio> #include<cstring> using namespace std; const int N=15; int ......

Tokio Marine & Nichido Fire Insurance Programming Contest 2020

A - Nickname 直接输出前三个字符。 代码: #include<iostream> #include<cstdio> using namespace std; const int N=25; char s[N]; int main() { scanf("%s",s+1); printf(" ......
Programming Insurance Contest Nichido Marine

Keyence Programming Contest 2020

A - Painting 每次取 \(H,W\) 中较大者涂就是了,输出 \(\lceil \frac{n}{\max(H,W)}\rceil\)。 代码: #include<iostream> #include<cstdio> using namespace std; int h,w,n; int ......
Programming Keyence Contest 2020