Question

Question 14;

Write a C function named isSymmetric, the prototype of which is given below, that returns 1 if the elements of an array of integers named myArray of size n are symmetric around the middle. If the array elements are not symmetric, the function should return 0. Both the array and its size are specified as parameters. (10 marks)

Clue: Array myArray of size n is symmetric if myArray[0] is equal to myArray[n-1], myArray[1] is equal to myArray[n-2], and so on. For example, the elements in the following array are symmetric: int list1[] = {1, 4, 5, 4, 1}; But the elements in the following array are not symmetric: int list2[] = {4, 6, 8, 9, 7, 8, 6, 4}; Function prototype: int isSymmetric(int values[], int n);

Write your code inside the box on the next page.

Answer 1

Answer: here is the answer for your question :

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C CODE:

#include <stdio.h>

int isSymmetric(int values[], int n)
{
   // i used for forward traversal and j for backward traversal
for (int i = 0, j = n - 1; i < j; i++, j--) {
if (values[i] != values[j]) {
  
return 0; // when array is not Symmetric, we return 0
}
}

return 1; // when array is Symmetric, we return 1
  
}

int main()
{
  
int values[11]={1,2,3,4,5,6,5,4,3,2,1};
int n = sizeof (values )/ sizeof (values[0]);

printf(" if array is Symmetric , output will be 1 else 0 :\n");
printf("fucntion returns value as:\n");
printf("%d",isSymmetric(values,n));
return 0;
}

SNIPPET:

main.c 2 #include <stdio.h> 4 int isSymmetric(int values[], int n), 5-{ // i used for forward traversal and j for backward traversal for (int i = 0, j = n - 1; i <j; i++, j--) { if (values[i] != values[j]) { HBW BROOO voup W return 0; // when array is not Symmetric, we return @ return 1; // when array is Symmetric, we return 1 16 } 17 18 int main() 19-{ int values[11]={1,2,3,4,5,6,5,4,3,2,1}; int n = sizeof (values ) sizeof (values[@]); printf(" if array is Symmetric, output will be 1 else 0 :\n"); printf("fucntion returns value as: \n"); printf("%d", isSymmetric(values,n)); return 0; 28 }

OUTPUT:

if array is Symmetric, output will be 1 else 0 : fucntion returns value as: ... Program finished with exit code o Press ENTER to exit console.

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