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2024年4月22日发(作者：illustrate短语)

hal 环形二维数组

English answer:

1. Introduction.

A 2D array is a data structure that stores a collection

of elements in a two-dimensional grid. Each element in the

array is identified by a pair of indices, one for the row

and one for the column.

In C++, a 2D array can be declared using the following

syntax:

cpp.

int array[num_rows][num_cols];

where num_rows is the number of rows in the array and

num_cols is the number of columns in the array.

2. Accessing Elements.

To access an element in a 2D array, you use the

following syntax:

cpp.

array[row][col];

where row is the index of the row and col is the index

of the column.

For example, the following code accesses the element in

the first row and second column of a 2D array:

cpp.

int value = array[0][1];

3. Iterating over a 2D Array.

There are two main ways to iterate over a 2D array:


本文标签： 环形 数组

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