(1) View the installed CentOS version information
1.cat /etc/issue View version
cat The abbreviation concatenate cat command can be used to display and merge files.
CentOS release
Category: OS
Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .
[HDU 3328] [Data Structure] Flipper
is a problem of flipping the brand. It is a little cumbersome to write, because it is only a laboratory water problem, so it is not optimized. L is flipped from the far left and overlaid on the sec
[Data Structure] Binary search tree
Binary search tree, also called binary sort tree, binary search tree. It has the following characteristics:
The value of the left subtree Less than the value of the root node, the value of th
String and encoding
Character encoding We have already talked about the character string is also a data type, but the string is more special is that there is an encoding problem.
Because computers can only proce
[Data Structure] Tree array template – Code [VS] 1080 line segment tree practice And1081 line segment tree practice 2
CODE[VS] 1080: Click to enter the first floor of the magic tower
CODE[VS] 1081: Click to enter the second floor of the magic tower
The tree array is a good thing. The constant is smaller tha
[Data Structure] Analysis of B Tree
1. The concept of B-tree B-tree, in general, is a balanced multi-branch tree in which a node can have more than 2 child nodes.
Features:
1> The root node has at least two child nodes
[Data Structure] 2.java Source Code About LinkedList
Focus on the source code of LinkedList
1. From the underlying data structure, expansion strategy
2. LinkedList additions, deletions and changes
3. Special processing focuses on attention
4. Trave
Write a Unicode C Source Code
I saw in the project properties on Visual Studio 2012 that you can select the character set for the application.
I use the Unicode character set.< br>What’s wrong with the multi-byte characte
Mariadb encrypted copy test
192.168.205.37: as master server
192.168.205.47: as middle server
192.168.205.57: as slave server
OS: centos 7 1810 with mini install
mariadb-5.5.60
Sometimes our database replicatio
[Data Structure] Recent public ancestors of any two nodes in the binary tree
Question request: Give two nodes in the binary tree arbitrarily, and find their nearest ancestor
There are three types Situation:
1. The binary tree is a search binary tree
If the