Sparse matrix
in matrix, if the number of elements with a value of 0 is far more than the number of non-zero elements , The matrix is called a sparse matrix
#include #include#include
Author: Simo
Unicode characters cannot print correctly in the terminal python
I wrote a very simple program that tells me the unicode value of some characters.
This is the program:
< /p> #!/usr/bin/env python3
# -*- coding: utf-8 -*-
characters = [u’T’, u’ב ‘, u’
[Data Structure] AVL Tree
AVL tree is a balanced search binary tree, which satisfies the nature of search tree (see article on binary search tree, link : Binary search tree), and meets the balance tree
Nature (left an
Building a Git server based on CENTOS 7
Git is a free and open source distributed version control system for agile and efficient processing of any small or large project.
⒈Install dependent libraries and compilation tools
1.
Why is the shared library path hard coded in executable?
I recently got a binary test. When I checked it with objdump, I found that it contains a hard-coded library path. Why do I need to hard-code such a path? Shouldn’t you get the path from the SHELL e
[Data Structure] Basic Operations on Single List
1. Initialization
//Create an empty single-linked list LinkList InitiateLinkList( ){ LinkList head; //Head pointer head = malloc(sizeof(node)); //Build a node dynamically, which is the head n
Several methods of modifying computer console coding
In program development, our unified encoding is UTF-8, which is very important, but we still encounter many garbled problems. There are many reasons for garbled codes, so I won’t be here for the ti
[Data Structure] Stack Surface Test – A Array Realizing Two Stacks
One array to realize two stacks, there are several ways:
1. The odd-numbered positions of the array store the elements of one stack, and the even-numbered positions store the elements of th
Prometheus + grafana + alertmanager mailbox alarm
Environment System: CentOS 7
Software: alertmanager-0.18.0.linux-amd64.tar.gz
Download the binary package
Address: https://prometheus.io/download/
Installation
# tar -xzvf alert
Code decoding byte
I have an embedded device that sends UTC date in this format (date is 4 bytes):
buffer.push_back((BYTE)(time_utc & 0x000000FF));
buffer.push_back((BYTE)((time_utc & 0x0000FF00) >> 8));
buff