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Operator Overloading for Matrix Operations

In this task, you will extend the functionality of a Matrix class to support matrix addition and subtraction operations using operator overloading. The Matrix class already includes basic functionalities such as accessing and modifying elements.

Your objective is to implement addition and subtraction operations so that you can use matrix data correctly.

Existing Features

  • The Matrix class constructor requires two arguments: rows and columns, indicating the dimensions of the matrix.
  • Matrix data is stored in a 2D array of integers.
  • Access to matrix elements is facilitated through provided get and set operators.
  • The toString method is overridden for easy printing of matrix contents.

Task Details

Implement operator overloading for addition (+) and subtraction (-) operations within the Matrix class. These operations should return a new Matrix object representing the result.

Example

Below is an example illustrating the usage of your extended Matrix class:

val matrix1 = Matrix(2, 2)
matrix1[0, 0] = 1
matrix1[0, 1] = 2
matrix1[1, 0] = 3
matrix1[1, 1] = 4

val matrix2 = Matrix(2, 2)
matrix2[0, 0] = 5
matrix2[0, 1] = 6
matrix2[1, 0] = 7
matrix2[1, 1] = 8

val sumMatrix = matrix1 + matrix2
val differenceMatrix = matrix1 - matrix2

println("Sum of Matrices:\n$sumMatrix")
println("Difference of Matrices:\n$differenceMatrix")