[题意]n个人进行游戏,每轮只保留最大的a[i]倍数的人,最后一轮过后剩余2人,求最小和最大的n,或-1.n<=10^5. [算法]递推||二分 [题解]令L(i),R(i)表示第i轮过后的最小人数和最大人数. 令X(i)和Y(i)表示区间[L(i),R(i)]中最小的a[i]倍数和最大的a[i]倍数. L(i-1)=X(i),R(i-1)=Y(i)+a[i]-1. X(i)=L(i)/a[i](上取整),Y(i)=R(i)/a[i](下取整). 答案为L(0),R(0). #include<…

题面在这里! 倒着维护可以取的范围区间,判一下可不可能无解即可. #include<bits/stdc++.h> #define ll long long using namespace std; const int N=1e5+5; int n,a[N]; ll L,R; int main(){ scanf("%d",&n); for(int i=1;i<=n;i++) scanf("%d",a+i); L=R=2; for(int i=…

Problem Statement An adult game master and N children are playing a game on an ice rink. The game consists of K rounds. In the i-th round, the game master announces: Form groups consisting of Ai children each! Then the children who are still in the g…

[题意]定义f(A,B)为一个字符串,满足: 1.长度为A+B,含有A个‘A',B个'B'. 2.最长的相同字符子串最短. 3.在满足以上2条的情况下,字典序最小. 例如, f(2,3) = BABAB, and f(6,4) = AABAABAABB. Q次询问f(Ai,Bi)的子串[Ci,Di]. Q<=10^3,A,B<=5*10^8,D-C+1<=100,time=2s. [算法]二分+构造 [题解]参考:Editorial 令k为最短的最长相同字符子串,显然k=max(A,B)…

A - Move and Win Time limit : 1sec / Memory limit : 512MB Score : 300 points Problem Statement A game is played on a strip consisting of N cells consecutively numbered from 1 to N. Alice has her token on cell A. Borys has his token on a different cel…

A - Move and Win 题解 看两个人相遇的时候谁先手即可,相遇之后第一个移动的人必输 代码 #include <bits/stdc++.h> #define fi first #define se second #define pii pair<int,int> #define pdi pair<db,int> #define mp make_pair #define pb push_back #define enter putchar('\n') #def…

An adult game master and N children are playing a game on an ice rink. The game consists of K rounds. In the i-th round, the game master announces: Form groups consisting of Ai children each! Then the children who are still in the game form as many g…

Zeroc ICE ( Internet Communications Engine )中间件号称标准统一,开源,跨平台,跨语言,分布式,安全,服务透明,负载均衡,面向对象,性能优越,防火墙穿透,通讯屏蔽.https://zeroc.com/ 该中间件在跨语言集成时比较方便,如下就是在JAVA C++之间交互时,启用ssl通讯的设置 1. 证书生成 ICE提供申请证书的脚步,通过ICE脚本,可生成所需的证书.进入Ice-3.5.1/cpp/src/ca目录. 1.1. 生成根证书,输入证书相关信…

1.linux find export find /Applications/Xcode.app/ -name symbolicatecrash -type f export DEVELOPER_DIR="/Applications/Xcode.app/Contents/Developer" 2.symbolicatecrash http://www.cnblogs.com/ningxu-ios/p/4141783.html 3.AURenderCallbackStruct AURen…

第一步,基于Windows下的安装,所以下载windows版的Ice,官网最新版本是Ice3.5.1: http://www.zeroc.com/download/ 安装完成可以在vs-工具的最下面看到ice configuration 第二步,安装Ice: 常规安装即可,可以选择安装目录,本次安装是在G:\Ice 第三步,设置Ice的环境变量: 主要有环境变量需要设置:path.classpath.ICE_HOME 例如: path:G:\Ice\bin; classpath:G:\Ice\l…