ZS the Coder and Chris the Baboon has explored Udayland for quite some time. They realize that it consists of n towns numbered from 1 to n. There are n directed roads in the Udayland. i-th of them goes from town i to some other town ai (ai ≠ i). ZS the Co
题目描述 我们称一个长度为2n的数列是有趣的，当且仅当该数列满足以下三个条件： (1)它是从1到2n共2n个整数的一个排列{ai}； (2)所有的奇数项满足a1<a3<...<a2n-1，所有的偶数项满足a2<a4<...<a2n； (3)任意相邻的两项a2i-1与a2i(1<=i<=n)满足奇数项小于偶数项，即：a2i-1<a2i。 现在的任务是：对
alter user scott account unlock; alter user scott identified by tiger; 1.首先我们可以用system用户以sysdba的身份登录oracle. sqlplus system/123456 as sysdba; 2.然后我就可以来创建用户了. create user test1 identified by test; 3.修改用户的密码.(密码：12345
面向过程 class Stu: name="" sex = "" score = 0 def dayin(self): print(self.name,self.sex,self.score) zs=Stu() zs.name="张三" zs.sex="男" zs.score=89 zs.dayin() ls=Stu() ls.name="李四" ls.sex="女" l
#-*- coding:utf-8 -*-#Author:'Lmc'#DATE: 2019/4/24/0024 上午 9:10:57#FileName:微信号.PY#厄拉多塞质数筛选法def eladuosai(n): l = list(range(1, n + 1)) l[0] = 0 for i in range(2,n + 1): if l[i - 1] != 0: for j in range(i * 2, n +
下面进行实战演练：binlog2sql工具的下载地址： https://github.com/danfengcao/binlog2sql第一步：环境准备安装各种依赖的工具包列表 python-pip ，PyMySQL ，python-mysql-replication，wheel argparse第二步：解压binlog2sql软件，命令如下 unzip binlog2sql-master.zip cd binlog2sql-master
对每一个长方体的坐标离散化处理 假想空气对空气bfs求联通 #include<bits/stdc++.h> using namespace std; const int maxn = 50 + 5; const int maxc = 1000 + 1; int n; int x0[maxn], y0[maxn], z0[maxn], x1[maxn], y1[maxn], z1[maxn]; int xs[maxn*2], ys[maxn*2], zs[ma
