00-自测4. Have Fun with Numbers (20) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 8000 B 判题程序 Standard 作者 CHEN, Yue Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 24691…

Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which happens to be another 9-digit number consisting exactly the numbers from 1 to 9, only in a…

Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which happens to be another 9-digit number consisting exactly the numbers from 1 to 9, only in a…

Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 246913578, which happens to be another 9-digit number consisting exactly the numbers from 1 to 9, only in a…

#include<iostream> #include<string> #include<cstring> #include<vector> using namespace std; int main() { ] = {}, b[] = { }; string str; vector<int>doublenum;//记录翻倍后的数值 cin >> str; int length = str.length(); ; ; i < l…

-自测1. 打印沙漏() 本题要求你写个程序把给定的符号打印成沙漏的形状.例如给定17个“*”,要求按下列格式打印 ***** *** * *** ***** 所谓“沙漏形状”,是指每行输出奇数个符号:各行符号中心对齐:相邻两行符号数差2:符号数先从大到小顺序递减到1,再从小到大顺序递增:首尾符号数相等. 给定任意N个符号,不一定能正好组成一个沙漏.要求打印出的沙漏能用掉尽可能多的符号. 输入格式: 输入在一行给出1个正整数N(<=)和一个符号,中间以空格分隔. 输出格式: 首先打印出由给定符号…

题目链接 题意:题目定义了Carmichael Numbers 即 a^p % p = a.并且p不是素数.之后输入p,a问p是否为Carmichael Numbers? 坑点:先是各种RE,因为poj不能用srand()...之后各种WA..因为里面(a,p) ?= 1不一定互素,即这时Fermat定理的性质并不能直接用欧拉定理来判定..即 a^(p-1)%p = 1判断是错误的..作的 #include<iostream> #include<cstdio> #include&l…

jmeter压力测试 前提场景的设置:单场景(单个接口进行压力测试一个请求)或混合场景(有业务流程的场景进行压力测试多个请求),压测时间一般在5--1515分组具体看需求. 数据准备:数据量少和数据量大的情况下,测试的结果是不一样的,在设计场景的时候是要考虑到这种情况的,要测试数据库中数据量大和数据量小的情况,如果是要测试数据量大的情况下,就要造数据了,造数据可以使用jmeter,操作数据库来造数据,也可以使用python连接数据库,批量的造数据. 查看压测结果:tps每秒钟处理的请求数,每个请…

主要压测范围包括CPU测试.磁盘IO测试.线程测试.OLTP测试等,那么sysbench就可以满足我们的压测需求.下面我们简单来看下sysbench的安装使用以及压测结果的解读. 一.sysbench安装 sysbench安装其实非常简单,可以参考下git,这里我们讲下源码编译安装. 上传sysbench到服务器.解压.安装: [root@localhost~] yum -y install make automake libtool pkgconfig libaio-devel[root@lo…

00-自测5. Shuffling Machine (20) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 8000 B 判题程序 Standard 作者 CHEN, Yue Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "insid…