C program to find maximum element in array using function

#include <stdio.h>
 
int find_maximum(int[], int); 
 
int main() {
  int c, array[100], size, location, maximum;
 
  printf("Input number of elements in array\n");
  scanf("%d", &size);
 
  printf("Enter %d integers\n", size);
 
  for (c = 0; c < size; c++)
    scanf("%d", &array[c]);
 
  location = find_maximum(array, size);
  maximum  = array[location];
 
  printf("Maximum element location = %d and value = %d.\n", location + 1, maximum);
  return 0;
}
 
int find_maximum(int a[], int n) {
  int c, max, index;
 
  max = a[0];
  index = 0;
 
  for (c = 1; c < n; c++) {
    if (a[c] > max) {
       index = c;
       max = a[c];
    }
  }
 
  return index;
}

Output of program: 

Input number of elements in array

5

 
Enter 5 integers

8

6

9

3

2 

Maximum element location = 3 and value = 9