C Program to Read integers into an array and Reversing them using Pointers

Data Structure / Array

1670

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Program:

#include<stdio.h>
#include<conio.h>
#define MAX 30

void main() {
   int size, i, arr[MAX];
   int *ptr;
   clrscr();

   ptr = &arr[0];

   printf("\nEnter the size of array : ");
   scanf("%d", &size);

   printf("\nEnter %d integers into array: ", size);
   for (i = 0; i < size; i++) {
      scanf("%d", ptr);
      ptr++;
   }

   ptr = &arr[size - 1];

   printf("\nElements of array in reverse order are :");

   for (i = size - 1; i >= 0; i--) {
      printf("\nElement%d is %d : ", i, *ptr);
      ptr--;
   }

   getch();
}

Output:

Enter the size of array : 5
Enter 5 integers into array : 11 22 33 44 55
Elements of array in reverse order are :
Element 4 is : 55
Element 4 is : 44
Element 4 is : 33
Element 4 is : 22
Element 4 is : 11

Explanation:

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