显然问题被分为两部分,先考虑如何求$F(n)$-- 令第一次所选的人编号为1,其之后所有人按顺时针依次编号为$2,3,...,n$,那么用一个序列来描述状态,其中第$i$个元素为当前存在的人中编号第$i$小的人手牌数(显然序列长度即为剩余人数) 初始序列显然为$\{1,1,...,1\}$(共$n$个1),并对$n$的奇偶性分类讨论: 1.若$n$为奇数,则$n$轮后序列为$\{3,2,2,...,2\}$(其中共$\frac{n-3}{2}$个2) 2.若$n$为偶数,则$n$轮后序列为$\{…

Text Postcards always spoil my holidays. Last summer, I went to Italy. I visited museums and sat in public gardens. A friendly waiter taught me a few words of Italian. Then he lent me a book. I read a few lines, but I did not understand a word. Every…

1.CardIO 识别 框架 GitHub 下载地址 配置 1.把框架整个拉进自己的工程,然后在 TARGETS => Build Phases => Link Binary With Libraries 里边分别加入下面这几个框架. Accelerate.framework MobileCoreServices.framework CoreMedia.framework AudioToolbox.framework AVFoundation.framework 2.在TARGETS =>…

#include <iostream> #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> #define maxn 800005 #define maxm 1600005 #define maxl 1600005 #define ll long long using namespace std; int n,cnt,m,last,root,tot,…

容斥原理+状压 Card Collector Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1940    Accepted Submission(s): 907Special Judge Problem Description In your childhood, do you crazy for collecting the bea…

Install application pavucontrol Run pavucontrol You will see the configuration about sound card and mic card. If can not solve it, Kmix shoud be used and combine it with pavucontrol…

补充新闻:程序员黑餐馆系统 给自己饭卡里充钱 ,技术是双刃剑,小心,小心! 前言 从M1卡的验证漏洞被发现到现今,破解设备层出不穷,所以快速傻瓜式一键破解不是本文的重点,年轻司机将从本文中获得如下技能. 如果你想简单快速的上手,你可以选择ACR122-like,Proxmark3等容易购买到的操作简单的设备,或者有个带有NFC功能并安装有安卓Mifare Classic Tool (MCT)软件的手机也是个不错的选择. 本文基于树莓派加RC522,PN532模块试验,如果你是刚入门的Geek爱好…

Card Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 218    Accepted Submission(s): 86Special Judge Problem Description There are x cards on the desk, they are numbered from 1 to x. The score o…

[OpenJudge 3061]Flip The Card 试题描述 There are N× Ncards, which form an N× Nmatrix. The cards can be placed upwards or downwards. Now Acer is going to do some operations so that all the cards are placed upwards after the operations. In each operation,…

How and Where to Use the ORCA Card The Microsoft ORCA card provides unlimited rides on all buses, trains, and water taxis operated by participating transit agencies. The ORCA card uses contact-free technology similar to a building access card, so you…