regionals multiply contest problem

AtCoder Beginner Contest 286(G)

# AtCoder Beginner Contest 286(G) ## G(欧拉路径) [G](https://atcoder.jp/contests/abc286/tasks/abc286_g) 题意大致为$n$个点,$m$个边的图,然后给出$k$条边的编号,问我们这$k$条边可不可以在一条路径 ......
Beginner AtCoder Contest 286

P1001 A+B Problem

考虑只用位运算去解决。 $a+b$ 可以表示成 $(a\land b)+(a\vee b)$,即把共有的 $1$ 和独有的 $1$ 分开。 因为 $(a\land b)\in(a\vee b)$,所以可以将前者左移一位,后者异或上前者,和保持不变。 这样又回到了第一步,递归计算即可,边界条件为 $a ......
Problem P1001 1001

300iq Contest 2 C Counting Cactus

这个数据范围显然是要状压的。 考虑一个子集 $S$,钦定他的根是 $u$ 该如何转移(设为 $f(u,S)$): $u$ 会在若干个环中,还会有若个用一条边分割的子仙人掌。 也就是若干子仙人掌拼起来。自然需要再设一个 $g(u,S)$ 表示 $u$ 为根,且 $u$ 只包含在一个环或一条边中的方案数 ......
Counting Contest Cactus 300 iq

SMU Spring 2023 Contest Round 5(2023 (ICPC) Jiangxi Provincial Contest -- Official Contest)

题目链接 Problem A. Drill Wood to Make Fire S * V >= n即可 #include<bits/stdc++.h> #define int long long #define endl '\n' using namespace std; const int N ......
Contest 2023 Provincial Official Jiangxi

Region Proposal Network (RPN) 架构详解

动动发财的小手,点个赞吧! ## 简介 如果您正在阅读[这篇文章](https://towardsmachinelearning.org/region-proposal-network/ "Source"),那么我假设您一定听说过用于目标检测的 RCNN 系列,如果是的话,那么您一定遇到过 RPN, ......
架构 Proposal Network Region RPN

SMU Spring 2023 Contest Round 4(第 21 届上海大学程序设计联赛 春季赛)

A. Antiamuny wants to learn binary search 签到题. #include <map> #include <set> #include <cmath> #include <queue> #include <stack> #include <cstdio> #inc ......
程序设计 联赛 Contest 程序 Spring

AtCoder Beginner Contest 287(C,D,E,F)

# AtCoder Beginner Contest 287(C,D,E,F) ## C (图) [C](https://atcoder.jp/contests/abc287/tasks/abc287_c) 题目大意为$n$个点,$m$条边,问是否这个图是一条长度为$n$的链 这个就直接判断每个点的 ......
Beginner AtCoder Contest 287

AtCoder Beginner Contest 214 G Three Permutations

[洛谷传送门](https://www.luogu.com.cn/problem/AT_abc214_g "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc214/tasks/abc214_g "AtCoder 传送门") 比较平凡的一个容斥 ......
Permutations Beginner AtCoder Contest Three

SMU Spring 2023 Trial Contest Round 11

A. The Text Splitting 题意:给出字符串长度,给出p和q两种切割方式,任选其中一种,把字符串分割输出结果。 题解:先进行判断,p和q是否能整个的分割n,利用p和q的函数关系判断(见代码),再计算有几个p几个q,再进行输出即可 void solve() { cin >> n >> ......
Contest Spring Round Trial 2023

airflow standalone problem fix: The webserver is already running under PID 3244

## problems with airflow standalone to start server with error: `The webserver is already running under PID 3244`. Try to list full server listening i ......
standalone webserver airflow problem already

解决 NVIDIA Windows has stopped this device because it has reported problems. (Code 43)

## 场景 1. 当跑需要使用GPU算力的一些项目时候,需要用到CUDA,确保电脑是具有独立显卡的机子,但是怎么也没法让代码中的torch跑在GPU上; 2. 点击任务管理器查看"性能"下的GPU选项,看到运行中的并非是独立显卡而是集成显卡; 3. 点击设备管理器,发现NVIDIA显卡左下角有感叹号 ......
has reported problems Windows because

AtCoder Beginner Contest 247 Ex Rearranging Problem

[洛谷传送门](https://www.luogu.com.cn/problem/AT_abc247_h "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc247/tasks/abc247_h "AtCoder 传送门") 考虑我们如何判定一 ......
Rearranging Beginner AtCoder Contest Problem

AtCoder Beginner Contest 303

# **A - Similar String** ```cpp #include using namespace std; #define int long long int32_t main() { int n; string s , t; cin >> n >> s >> t; for( int ......
Beginner AtCoder Contest 303

AtCoder Beginner Contest 213 H Stroll

[洛谷传送门](https://www.luogu.com.cn/problem/AT_abc213_h "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc213/tasks/abc213_h "AtCoder 传送门") 考虑一个朴素 dp ......
Beginner AtCoder Contest Stroll 213

How to fix the problem that Raspberry Pi cannot use the root user for SSH login All In One

How to fix the problem that Raspberry Pi cannot use the root user for SSH login All In One 如何修复树莓派无法使用 root 用户进行 SSH 登录的问题 ......
Raspberry the problem cannot login

2022 Shanghai Collegiate Programming Contest

# A. Another A+B Problem 暴力枚举出所有的情况,然后特判一下 ```cpp #include using namespace std; set res; int t; string a , b , c = "????????"; #define f(d) ((d[0]-'0' ......
Programming Collegiate Shanghai Contest 2022

AtCoder Beginner Contest 288(D,E,F)

# AtCoder Beginner Contest 288(D,E,F) ## D(思维) [D](https://atcoder.jp/contests/abc288/tasks/abc288_d) 有一个数组,然后有$q$次询问,每一次输入一对$l,r$,我们要判断这一段里面的数是不是好数组 ......
Beginner AtCoder Contest 288

The 2023 Guangdong Provincial Collegiate Programming Contest

# A - 算法竞赛 ```cpp #include using namespace std; #define int long long void solve(){ int st , n , ed; cin >> st >> n; map cnt; for( int i = 1 , x ; i > ......

适定问题(Well-posed problem)与不适定问题(ill posed problem)

Well-posed problem & Ill-posed problem. 适定问题(Well-posed problem)是指满足下列三个要求的问题: a solution exists:解必须存在;the solution is unique:解必须唯一;the solution’s beh ......
problem 问题 posed Well-posed Well

AtCoder Beginner Contest 258 Ex Odd Steps

[洛谷传送门](https://www.luogu.com.cn/problem/AT_abc258_h "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc258/tasks/abc258_h "AtCoder 传送门") 不错的矩阵快速幂优 ......
Beginner AtCoder Contest Steps 258

AtCoder Beginner Contest 289(E,F)

# AtCoder Beginner Contest 289(E,F) ## E(dijkstra) [E](https://atcoder.jp/contests/abc289/tasks/abc289_e) 这个题的大意就是有两个人,一个人在点$1$,一个人在点$n$,现在两个人要同时走(题目给 ......
Beginner AtCoder Contest 289

AtCoder Beginner Contest 303

## [A - Similar String (abc303 a)](https://atcoder.jp/contests/abc303/tasks/abc303_a) ### 题目大意 给定两个字符串,问这两个字符串是否相似。 两个字符串相似,需要每个字母,要么完全相同,要么一个是`1`一个是` ......
Beginner AtCoder Contest 303

AtCoder Regular Contest 153 D Sum of Sum of Digits

[洛谷传送门](https://www.luogu.com.cn/problem/AT_arc153_d "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/arc153/tasks/arc153_d "AtCoder 传送门") 又浪费一道好题![ ......
Sum AtCoder Regular Contest Digits

AtCoder Regular Contest 161

# Preface ARC战俘闪总出列 这场一上来就感觉状态不太对,先是A顺序敲反WA了一发,然后C题看到秒出一个贪心然后也WA了 看一眼榜发现D过的比C多,然后跑去把D写了,中间还偷偷挂了两发 最后50min回去沉淀C题,结果换了两种写法都还是一样的挂,后面发现想法还是有纰漏 总结:彩笔 # ** ......
AtCoder Regular Contest 161

2022 AMC 10B Problems

Problem 1 Define to be for all real numbers and What is the value of Problem 2 In rhombus , point lies on segment so that , , and . What is the area o ......
Problems 2022 10B AMC 10

AtCoder Regular Contest 148 E ≥ K

[洛谷传送门](https://www.luogu.com.cn/problem/AT_arc148_e "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/arc148/tasks/arc148_e "AtCoder 传送门") 是一道不错的计数。 ......
AtCoder Regular Contest 148

AtCoder Beginner Contest 290(D,E)

# AtCoder Beginner Contest 290(D,E) ## D (思维,数学) [D](https://atcoder.jp/contests/abc290/tasks/abc290_d) 这个题的大意就是我们需要标记$n$个位置,他是这样标记的,一开始有一个初始值为$0$的$x$ ......
Beginner AtCoder Contest 290

Problem D: 世界杯查询

Problem Description 1.从命令行读入一个队名,输出该队获得冠军是哪一年(以下面五届数据作为基础数据)。如果该队没有获得冠军,则输出:队名+“ lose the championship!”。2.下面是五届世界杯数据:届数 举办年份 举办地点 冠军第一届,1930年,Uruguay ......
Problem 世界

Problem A: 实验十二:窗口卖票

Problem Description 1.实验目的(1) 掌握线程的创建、使用及sleep方法的运用2.实验内容 编写一个售票系统,三个窗口,每个窗口独立售票,所售票不能有重号。并且优先次序为1号窗口卖1-5号,2号窗口卖6-10号,3号窗口卖11-15号。3.实验要求 请完成下列代码: clas ......
Problem

2022 AMC 10A Problems

2022 AMC 10A Problems Problem 1 What is the value of Problem 2 Mike cycled laps in minutes. Assume he cycled at a constant speed throughout. Approxima ......
Problems 2022 10A AMC 10