program to enter some elements and display that in opposite order.

//array program to input elements and to display them in reverse order
  #include<stdio.h>
  #include<conio.h>
  void main()
  {
  clrscr();
  int arr[100];      // array declaration with maximum size 100
  int size;     // size to be used to input elements
  int i;            //variable declaration
  printf("enter size of elements \n");//displays message
  scanf("%d",&size);                  //gets input for array size
  for(i=0;i<size;i++)
   {                            //loop execution
     printf("enter elements\n");//displays message
     scanf("%d",&arr[i]);      //gets input for  array entered by user

   }
   printf("elements, in reverse order, are\n");
   for(i=size-1;i>=0;i--)
   {
   printf("%d\n",arr[i]);       // displays  elements
   }
   getch();

   }
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logics:-

1)declare an array of  partiular size.

2)input elements for this using loop.

3)to display, use loop from given size-1 to 0 location (look above)

that's all

more, u can understand from side by description given in program

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screen shot

output: