MNIST libtorch practical exercise
Ready to work
First download the MNIST database, http://yann.lecun.com/exdb/mnist/
After downloading, do not decompress it with software such as winrar. For example, t10k-images-idx3-ubyte is decompressed into t10k-images.idx3-ubyte. It is best to decompress it with tar in Linux environment.
Suppose you unzip t ...
Posted by chrys on Wed, 25 May 2022 15:51:55 +0300
We often use a variable to initialize a variable of the same type, so there should be similar operations for custom types, so how to use an existing object to create another same object when creating an object?
Constructor: There is only a single parameter, which is a reference to an object of this class type (usually cons ...
Posted by mad81 on Wed, 25 May 2022 10:40:27 +0300
The basic concept of polymorphism and two simple examples based on polymorphism are introduced above. This paper will introduce the specific implementation principle of polymorphism and the use of constructor and destructor in polymorphism.
2. Implementation principle of polymorphism
The key to polymorphism is that when a vi ...
Posted by Bullit on Wed, 25 May 2022 10:28:08 +0300
Experiment 11: read / write the specified location information of the disk (just complete the reading)
1, Experimental purpose
(1) Knowledge of Disk Physics.
(2) Master the API for disk operation provided by Windows system.
(3) Read / write the specified sector according to the entered sector number.
2, Experimental preparation knowledge: intro ...
When we search for an integer among n dynamic integers, there are several methods
① Using dynamic arrays, the average time complexity is O(n)
② Using an ordered dynamic array and binary search method, although its worst time complexity is only O(logn), its average time complexity of addition and depth is too high, which is O(n).
③ Using a link ...
Posted by nonexist on Wed, 25 May 2022 04:01:05 +0300
The lower the price of each commodity, the higher the sales volume. Now we know the cost of a commodity and its sales volume at several prices (the product will not be lower than the sales cost), and assume that the change of sales volume between adjacent prices is linear, and after the price is higher than the given maximum ...
Posted by modcar on Tue, 24 May 2022 15:53:06 +0300
Introduction notes to C + + Basics (III) operator Basics
Whether you learn or not, C + + is there, seducing you all the time
The content is based on the dark horse programmer c + + course handout. I added a small part and put it here as a reference for my review in the future. (this introductory course is highly recommended. It's available on ...
Posted by andy75180 on Tue, 24 May 2022 03:17:52 +0300
Click to enter the original question link: Word Search
Related topics: word search II word search II
[tag] backtracking search, C++ ASCII
Given a 2D board and a word, find if the word exists in the grid.
The word can be constructed from letters of sequentially adjacent cell ...
Posted by snaack on Tue, 24 May 2022 01:57:25 +0300
constexpr usage summary
Constants and their definitions
Constants are fixed values that do not change during program execution. These fixed values are also called literals. Constants can be of any basic data type, including integer numbers, floating-point numbers, characters, strings, and booleans. Constants are li ...
Posted by CGRRay on Tue, 24 May 2022 00:45:05 +0300