reverse an array

#include<stdio.h>
 
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]);
 
   for ( c = n - 1, d = 0 ; c >= 0 ; c--, d++ )
      b[d] = a[c];
 
   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;
}