reverse an array

#include <stdio.h>

int main()
{
int n, c, d, a[100], b[100];

printf("Enter the number of elements in array\n");
scanf("%d", &n);

printf("Enter the array elements\n");

for (c = 0; c < n ; c++)
scanf("%d", &a[c]);

/*
* Copying elements into array b starting from end of array a
*/

for (c = n - 1, d = 0; c >= 0; c--, d++)
b[d] = a[c];

/*
* Copying reversed array into original.
* Here we are modifying original array, this is optional.
*/

for (c = 0; c < n; c++)
a[c] = b[c];

printf("Reverse array is\n");

for (c = 0; c < n; c++)
printf("%d\n", a[c]);

return 0;
}