Question

Write a function to add two one-dimensional matrices of integer values. The

matrices are represented as arrays of int and the function must return the result

as a pointer to a new dynamically allocated array of int. You can assume the

parameters are always of length greater than 0 and that no errors can occur.

Answer 1

check out the solution and let me know if any queries through COMMENTS.

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#include<iostream>
#include<conio.h>

using namespace std;

// global variable for length of array
int SIZE = 5;

// function defintion
int* add_arr(int arr1[], int arr2[])
{
// dynamic array created as a pointer
int* sum_arr = new int[SIZE];

for(int i=0; i<SIZE; i++)
{
// summimg up corresponding array elements and save it dynamically
sum_arr[i] = arr1[i] + arr2[i];
}

// return the newly dynamically created result array
return sum_arr;
}

// main function
int main()
{
// declare 2 arrays
int arr1[] = {1, 3, 5, 7, 9};
int arr2[] = {0, 2, 4, 6, 8};
// function call and returned result saved in a pointer
int* result_arr = add_arr(arr1, arr2);

// print the resultant array
cout << "\nThe resultant array : \n";
for(int i=0; i<SIZE; i++)
cout << result_arr[i] << "\t";
  
// delete the dynamically created array
delete [] result_arr;
// print as required
cout << "\n\nProgram ended!!!";
  
getch();
return 0;
}

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OUTPUT ::