programming arguments variable varargs
The 2023 ICPC Asia Hong Kong Regional Programming Contest (The 1st Universal Cup, Stage 2:Hong Kong)
题解: https://files.cnblogs.com/files/clrs97/2022Hong_Kong_Tutorial.pdf Code: A. TreeScript #include <bits/stdc++.h> using namespace std; using LL = lon ......
The 2022 ICPC Asia Hangzhou Regional Programming Contest
题解: https://files.cnblogs.com/files/clrs97/2022ICPCHangzhouTutorial.pdf Code: A. Modulo Ruins the Legend #include<bits/stdc++.h> using namespace std; ......
2017 China Collegiate Programming Contest Final (CCPC-Final 2017)
Preface 今天打学校统一要求的这场CCPC2017Final,直接被打爆了,各种数学题搞得人生活不能自理 主要是H徐神开场就秒出了正确的思路,然后一心认准高斯消元然后一直想+写+调到结束都没卡过去 比赛最后20min的时候祁神想到了更好写的基于施密特正交化的方法,可以碍于时间有限没调出来 不过 ......
sqlalchemy报错TypeError: __init__() got multiple values for argument 'schema'
使用sqlalchemy读取数据库时抛出异常 TypeError: __init__() got multiple values for argument 'schema' ①似乎SQLAlchemy的版本2.0.0(2023年1月26日发布)与pandas的早期版本不兼容。 建议升级pandas版 ......
Java 21 新特性:Unnamed Patterns and Variables
Java 21中除了推出JEP 445:Unnamed Classes and Instance Main Methods之外,还有另外一个预览功能:未命名模式和变量(Unnamed Patterns and Variables)。该新特性的目的是提高代码的可读性和可维护性。 下面通过一个例子来理解 ......
2022 China Collegiate Programming Contest (CCPC) Weihai Site
Preface VP到自己学校出的题了可海星,不得不说学长们出的题比起昨天VP的CCPC2022广州做起来要舒服地多 这场前面写题都很顺基本都是一发过,中期的medium也没怎么卡思路和卡机子,一道一道地慢慢出 最后一个小时徐神RushF可惜没Rush出来,然后我和祁神坐在下面把B的做法给搞出来了, ......
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 ......
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 ......
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 ......
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 ......
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 ......
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 ......
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 ......
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 ......
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% ......
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% ......
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(" ......
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(" ......
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 ......
diverta 2019 Programming Contest 2
A - Ball Distribution \(k=1\) 时答案为 \(0\),否则答案为 \(n-k\)。 #include<iostream> #include<cstdio> using namespace std; int n,k; int main() { scanf("%d%d",&n ......
Dwango Programming Contest V
A - Thumbnail 直接按照题意模拟。。。 #include<iostream> #include<cstdio> #include<cmath> using namespace std; const int N=105; int n; int a[N]; int main() { scan ......
NIKKEI Programming Contest 2019-2
A - Sum of Two Integers 分奇偶讨论一下就好了,答案为 \(\lfloor \frac{n-1}\{2\}\rfloor\)。 #include<iostream> #include<cstdio> using namespace std; int n; int main() ......
Dwango Programming Contest 6th
A - Falling Asleep 找到第一个相等的位置,然后暴力往后加就是了。 #include<iostream> #include<cstdio> using namespace std; const int N=55; int n; string s[N]; string t; int a ......
M-SOLUTIONS Programming Contest
A - Sum of Interior Angles 答案为 \(180(n-2)\)。 #include<iostream> #include<cstdio> using namespace std; int n; int main() { scanf("%d",&n); printf("%d", ......
diverta 2019 Programming Contest
A - Consecutive Integers 答案为 \(n-k+1\)。 #include<iostream> #include<cstdio> using namespace std; int n,k; int main() { scanf("%d%d",&n,&k); printf("%d ......
CS61A: Structure and Interpretation of Computer Programs 笔记
Functions Environment Diagrams:左侧为 Frames,右侧为 Objects。 Name 类似变量名,它们存储在 Frame 中,指向各种各样的 Objects,比如值或函数。一个 Name 同时只能指向一个 Object,但可以改变自身指向,不受“类型”影响(Name ......
C++多线程Multithreading std::condition_variable
多线程Multithreading #include <iostream> #include <thread> #include <mutex> #include <condition_variable> std::mutex mtx; std::condition_variable cv; boo ......
Go - Using channels to receive interrupts in a program
Within the Kubernetes deployment environment, applications will actually be sent the SIGTERM signal first if it has been decided the pod holding the a ......
Qt报错: variable has incomplete typte ‘QJsonObject’
Qt 常见运行失败的记录1.变量声明未实例化变量在头文件声明了,没new出来直接使用,导致程序运行崩溃 2. 定义变量时候下面出行红线,出现 varible has incomplete type ‘QTextStream’ varible has incomplete type 'QTextStr ......