C program to reverse an array

This program reverses the array elements. For example if a is an array of integers with three elements such that
a[0] = 1
a[1] = 2
a[2] = 3
Then on reversing the array will be
a[0] = 3
a[1] = 2
a[0] = 1

Given below is the c code to reverse an array.

C programming code

#include <stdio.h>

#include<conio.h> 

void main()

{

   int n, c, d, a[100], b[100];

   clrscr();

   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]);

   getch();

}

Output of program:

Reverse array by swapping (without using additional memory)

#include <stdio.h>

#include<conio.h> 

void main() 

{

  int array[100], n, c, temp, end;

  clrscr(); 

  scanf("%d", &n);

  end = n - 1;

  for (c = 0; c < n; c++) 

 {

  scanf("%d", &array[c]);

  }

  for (c = 0; c < n/2; c++) 

 {

  temp = array[c];

  array[c]   = array[end];

  array[end] = temp;

  end--;

  }

  printf("Reversed array elements are:\n");

  for (c = 0; c < n; c++) {

  printf("%d\n", array[c]);

  }

  getch();

}