Dynamic Addition of Two 2D Arrays Across Rows

Dynamic Addition of Two 2D Arrays Across Rows

In this article, we will discuss how to dynamically add two 2D arrays of equal length across rows. This is a common operation in many programming languages, and it can be used to solve a variety of problems.

Key Concepts

Before we dive into the details of how to add two 2D arrays across rows, let's first cover some key concepts:

• 2D Array: A 2D array is a type of data structure that consists of multiple rows and columns. It is also known as a matrix.
• Equal Length: Two 2D arrays are said to be of equal length if they have the same number of rows and columns.
• Dynamic Addition: Dynamic addition refers to the process of adding two arrays together at runtime, without knowing the size of the arrays ahead of time.

Example

Let's say we have two 2D arrays, array1 and array2, that are both of equal length:

int array1[3][3] = {
{1, 2, 3},
{4, 5, 6},
{7, 8, 9}
};

int array2[3][3] = {
{9, 8, 7},
{6, 5, 4},
{3, 2, 1}
};

To add these two arrays across rows, we can use a nested loop to iterate over each element in the arrays, and add them together:

int array3[3][3];

for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
array3[i][j] = array1[i][j] + array2[j][i];
}
}

The resulting array, array3, will contain the sum of the corresponding elements in array1 and array2 across rows:

array3 = {
{10, 10, 10},
{10, 10, 10},
{10, 10, 10}
};

In this article, we have discussed how to dynamically add two 2D arrays of equal length across rows. This can be done using a nested loop to iterate over each element in the arrays, and add them together. The resulting array will contain the sum of the corresponding elements in the original arrays.

References

• Type: Online Resource
  Title: "2D Arrays in C++"
  URL: https://www.cplusplus.com/articles/z6vU7k9E/
• Type: Book
  Title: "C++ Primer"
  Author: Stanley B. Lippman, Josée Lajoie, and Barbara E. Moo
  Publisher: Addison-Wesley Professional

Note: The above references are provided for informational purposes only and do not constitute an endorsement or recommendation by the author.