Write before: Today, let's learn about the stack structure. The stack can also be called directly in C + + STL, but we can use C + + to realize the stack structure.
Definition of stack
The stack meets the principle of "first in and last out", that is, it can only be inserted and deleted from the tail. The implementation of the sta ...
Posted by rReLmy on Tue, 01 Mar 2022 12:12:51 +0100
Question type summary
subjectsummarypracticekey wordFind in 2D arrayIn an n * m two-dimensional array, each row is sorted in ascending order from left to right, and each column is sorted in ascending order from top to bottom. Please complete an efficient function, input such a two-dimensional array and an integer, and judge whether the arr ...
Posted by cloudnyn3 on Mon, 21 Feb 2022 03:59:30 +0100
A collection of elements of the same type
1. Creation and initialization of one-dimensional array
2. Use of one-dimensional array
3. Storage of one-dimensional array in memory
4. Creation and initialization of two-dimensional array
5. Use of two-dimensional array
6. Storage of two-dimensional array in memory
7. Array as ...
Posted by caine on Sat, 19 Feb 2022 01:37:42 +0100
1, What does array CURD mean
Array is a container for storing data. The method of operating data: CRUD -- add, delete, modify and query
C: Create data increase
R: Retrieve query data
U: Update modify data
D: Delete delete data
1. Add data: data can be added directly at the specified position through index / number / dry label
2. Query da ...
Posted by DrJonesAC2 on Fri, 11 Feb 2022 06:13:33 +0100
(1) When storing multiple data of the same type, you can use array, which is a reference type.
Two ways to create arrays
//The first creation method Use the new keyword
var nameList = new Array();
//The second creation method uses  literal.
var nameList = ;
(2) Data is stored by index (sequence number) in the number, and t ...
1, Change the shape of the array
functioneffectnp.reshape(a, newshape)a is an array and newshape is an integer tuple; Returns an array of newshape shapesnp.ravel(a)Flatten into a one-dimensional array; Equivalent to NP reshape(a, -1)np.flatten(a)The effect is the same as that of t ravel, but flatten is more recommended
Posted by n_wattam on Tue, 08 Feb 2022 16:45:31 +0100
Understand several key points
C language is process oriented programming, so the object in C refers to the physical memory that stores (multiple) values. An object may not store the actual value, but it has the corresponding size when stored C + + object-oriented programming, so object in C + + refers to class object, whic ...
Posted by Cognito on Sun, 06 Feb 2022 04:10:34 +0100
This paper mainly includes:
Create arrayDetermine whether it is an arrayClass array and array conversionArray de duplication
You can choose to eat according to your own needs.
Creating an array is ...
Posted by zkoneffko on Sat, 05 Feb 2022 18:52:06 +0100
Array Object is used to hold multiple values in a single variable.
let array = [true, 12, 'is true']
here array Is an array. The values in the ar ...
Posted by skyriders on Sat, 05 Feb 2022 10:28:48 +0100
Basic concept of array
Array, literally, means a set of data. Yes, array is used to store a set of data
In C language, array belongs to construction data type Several nouns of array
Array: an ordered collection of data of the same data typeArray element: each data that constitutes an array.Subscript of array: index of array element pos ...
Posted by kat89 on Wed, 02 Feb 2022 01:08:42 +0100