Write a C program to Find Max in Array Using Recursion

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
 
#define MAX_SIZE 10
 
/* C program to find the largest element in a linear array of integers
 * recursively
 */
 
/* find_large takes the array we need to search in, index of the array to
 * compare with the largest number. Initially, the index will be that of the
 * last element of the array, and the first element will be set as the
 * largest element. With each recursion we update the largest element and
 * update the index so that we are moving towards the start of the array.
 * We stop once we reach the start of array and return the largest element
 * to the main function.
 */
 
int find_large(int arr[], int index, int largest)
{
  if(index == 0)
    return largest;
 
  else
  {
    if(arr[index] > largest)
      largest = arr[index];
 
    return find_large(arr,index-1,largest);
  }// end of if(index > 0)
 
}// end of find_large
 
int main()
{
  int size, largest, i;
 
  // initialising the array with zero
  int arr[MAX_SIZE]={0,0,0,0,0,0,0,0,0,0};
 
  // Take array size from user. size <= MAX_SIZE
  printf("Enter the array size (max size: %d): ",MAX_SIZE);
  scanf("%d", &size);
 
  // exit if size > MAX_SIZE
  if(size > MAX_SIZE)
  {
    printf("size entered is greater than MAX_SIZE, exiting!!!\n");
    exit (1);
  }
 
  // exit if size is negative
  if(size < 0)
  {
    printf("How can I create negative sized array!!, exiting\n");
    exit (1);
  }
 
  // exit if size == 0
  if(size == 0)
  {
    printf("Empty array, exiting\n");
    exit (1);
  }
 
  // setting current time as seed for random generator
  srand(time(0));
 
  // Add random elements to the array
  printf("Adding elements to the array and printing them\n");
 
  for(i = 0; i < size; i++)
  {
    arr[i] = rand() % 100;
    printf("%d, ",arr[i]);
  }
  printf("\n");
 
  // initialising largest with first element of the array
  largest = arr[0];
 
  /* calling find_large recursively with index as index of last element and
   * largest initialised with first element in the array
   */
 
   largest = find_large(arr, size-1, largest);
 
   // printing the largest number after find_large returns
   printf("Largest number is %d\n",largest);
 
   return 0;
 
}//end of main
 
############################
Output: 
 
Enter the array size (max size: 10): 11
size entered is greater tham MAX_SIZE, exiting!!!
 
############################
Enter the array size (max size: 10): -7
How can I create negative sized array!!, exiting
 
############################
Enter the array size (max size: 10): 0
Empty array, exiting
 
############################
Enter the array size (max size: 10): 8
Adding elements to the array and printing them
53, 11, 50, 18, 70, 69, 39, 97, 
Largest number is 97
 
############################
Enter the array size (max size: 10): 3
Adding elements to the array and printing them
67, 9, 49, 
Largest number is 67