交换矩阵中的两行 [英] Swapping two rows in a matrix

问题描述

在交换二维动态数组矩阵中的两行时遇到问题.我想知道是否有直接使用的功能，或者没有，我想知道如何制作.提前致谢. 这是我制作动态数组的方法:

I am having a problem in swapping two rows in a matrix that is a 2D-dynamic array. I wanted to know if there is a function to use directly or if there is none I would like to know how to make one. Thanks in advance. Here is how I made the dynamic array:

int **ptrMatrix = new int*[row];
    for (int i = 0; i < row; i++)
        ptrMatrix[i] = new int[column];

推荐答案

我找到了解决方案...只需通过创建一个临时变量(X)并应用以下代码即可完成

I found the solution ... it is done simply by making a temporary variable (X) and appling the following code

for (int i=0;i<columns;i++)
{
   X=matrix[row1-1][i];
   matrix[row1-1][i]=matrix[row2-1][i];
   matrix[row2-1][i]=X;
}

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