golang array transpose

In recent years, Golang has continued to be sought after and respected among programmers, especially as one of the main languages ​​for business development in some large enterprises. As a basic structure of data, array is a type often used in programming. This article will introduce a classic Golang array transposition method.

What is array transposition

Array transposition means exchanging the rows and columns of a matrix. For example, matrix

n

represents the array length,

Type

represents the element type. For example:

1 2 3
4 5 6
7 8 9

Golang array transposition implementation

For an M*N matrix, we can use a two-dimensional array to represent it. In Golang, the definition of a two-dimensional array is as follows: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>1 4 7 2 5 8 3 6 9</pre><div class="contentsignin">Copy after login</div></div> You can first define a two-dimensional array to represent the original matrix: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:go;toolbar:false;'>var array [n]Type</pre><div class="contentsignin">Copy after login</div></div> Next, we need to define a function

transpose

To implement matrix transposition. This function needs to pass in a two-dimensional array

a

and its row and column numbers

m

and

n

. The implementation of the function is as follows: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:go;toolbar:false;'>var a [5]int // 定义一个长度为5的int数组 a[0] = 1 // 给第0个元素赋值为1</pre><div class="contentsignin">Copy after login</div></div>In the function, we first create a two-dimensional array n*mb and initialize each element of it. . Next, we traverse the original matrix a, match the rows of

a

with the columns of b, and store the results in b. Finally, the function returns the transposed matrix b. In the main function, we can call this function to implement array transposition: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:go;toolbar:false;'>var array [m][n]Type</pre><div class="contentsignin">Copy after login</div></div>The output results are as follows: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:go;toolbar:false;'>var matrix = [3][3]int{ {1, 2, 3}, {4, 5, 6}, {7, 8, 9}, }</pre><div class="contentsignin">Copy after login</div></div>Summary<code>Through the above implementation , we can see that the Golang array transposition operation is very simple. Just traverse the original matrix and correspond the rows and columns. Of course, there are other implementations, such as using a one-dimensional array to simulate a two-dimensional array. No matter which method you choose, you need to pay attention to the issue of array subscript boundaries to avoid unexpected errors. With continuous practice and practice, I believe you can easily master Golang's array transposition operation.

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