Question

/**Programming in C**/

Write a appendArray() function, whose parameters include two one-dimensional arrays of integers, arr1[] and arr2[], with sizes size1 and size2, respectively. The function should append all of arr2 to the end of arr1 and return the updated size of arr1. int appendArray(int arr1[], int arr2[], int size1, int size2){

}

Are there any restrictions to the usability of your function when called from main() that should be included with the description of the function in the comments?

Answer 1

check out the solution and do comment if any queries.

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#include<stdio.h>
#include<conio.h>
// function definition
// i think there are no restricions to call this function from 'main' as long as the type of variables remains as 'int'
int appendArray(int arr1[], int arr2[], int size1, int size2)
{
// declaration
int i, j;
// loop starts from the end of arr1 and start of arr2
for(i=size1, j=0; j<size2; i++, j++)
{
// append arr2 elements to the end of arr1
arr1[i] = arr2[j];
}
// print the updated arr1 elements
// and also 'i' contains the size of updated arr1 as it increments to get next arr1 element
printf("\nUpdated arr1 elements : \n\n");
for(i=0; i<size1+size2; i++)
{
printf("%d\t", arr1[i], i);
}

// returns the result as long as 'i' looped through arr1 to print updated arr1
return i;
}

// main function
int main()
{
// declaration
int size1, size2, size;
// initialization
size1 = 5;
size2 = 3;
int arr1[] = {1, 2, 3, 5, 6};
int arr2[] = {4, 5, 6};
// function call
size = appendArray(arr1, arr2, size1, size2);
// prints the updated arr1 size
printf("\n\n\nUpdated size of arr1 is : %d", size);

getch(); // optional statement
return 0;
}
// main ends

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OUTPUT ::