C language data structure-time complexity and space complexity

1. What are time complexity and space complexity? 1.1 Algorithm efficiency Algorithm efficiency analysis is divided into two types: the first is time efficiency, and the second is space efficiency. Time efficiency is called time complexity, while space efficiency is called space complexity. Time complexity mainly measures the running speed of an algorithm, while space […]

[Linux] Stop 16: Process Address Space

Article directory 1. Program address space 1. Memory distribution 2. Why is it not released after static modification? 3. A strange phenomenon 2. Process address space 1. The reason for the previous phenomenon 2. What exactly is an address space? 3. Why is there a process address space? 4.Page table 5. What is process? 6. […]

I am learning OpenCV color space conversion in Vscode

Article directory color 【1】Color space (color gamut) (1) **RGB color space** Conversion to xyz color space Convert RGB color space to XYZ color space Convert XYZ color space to RGB color space (2) **CMYK color space** (3) **HSV** (**Hue, Saturation, Value**) color space (4) **YUV and YCbCr color space** 【2】Color space conversion 2.1 GRAY color […]

Data structure – time complexity and space complexity

1. Algorithm efficiency 1.1 Complexity of algorithm After the algorithm is written into an executable program, it takes time, resources and space to run. ( Memory ) resource . therefore Measuring the quality of an algorithm, generally Measured from two dimensions: time and space , namely time complexity and space complexity. Time complexity mainly measures […]

oracle switches temporary table spaces, creates indexes, creates temporary tables, and creates large and small table spaces

1. The temporary table space of the switched database is temp1/the undo table space of the switched database is undotbs01 1. View the table space of the current database select tablespace_name from dba_tablespaces; It was found that there are no above two table spaces. 2. Create temp1 temporary table space and undotbs01 table space #Create […]

Memory management – linear space, system space

? 2. Linear memory management The 32-bit memory space is 4G. Except for some reserved for hardware and some special purposes, the remaining first 2G is allocated to applications and used separately by different programs (user mode), and the last 2G is allocated to the system. Shared by all programs (core state). Therefore, two management […]

BP regression prediction | Optimizing BP neural network parking space prediction based on genetic algorithm with Matlab code

?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For code acquisition, paper reproduction and scientific research simulation cooperation, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization […]

Optimizing BP neural network parking space prediction based on genetic algorithm with Matlab code

?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For code acquisition, paper reproduction and scientific research simulation cooperation, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization […]