PROGRAMMING FOR PROBLEM SOLVING LAB : Program 12

Write a program for display values reverse order from array using pointer.

#include <stdio.h> 

void main()

{

int n, i, arr1[15]; int *pt;

clrscr();

printf("\n\n Pointer : Print the elements of an array in reverse order :\n"); 

printf(" \n");

printf(" \n Enter the size of an array:\n "); 

scanf("%d",&n);

pt = &arr1[0]; // pt stores the address of base array arr1 

printf("\n Enter %d integers into array: \n",n);

for(i=0;i<n;i++)

{

printf("\n Element : %d is:",i+1); 

scanf("%d",pt);//accept the address of the value 

pt++;

}

pt = &arr1[n - 1];

printf("\n The elements of array in reverse order are :"); 

for (i = n; i > 0; i--)

{

printf("\n Element : %d is:%d", i, *pt); 

pt--;

}

printf("\n\n"); 

getch();

}

OUTPUT:

Pointer : Print the elements of an array in reverse order :

 

 Enter the size of an array:

 5

 Enter 5 integers into array: 

 Element : 1 is:45

 Element : 2 is:13

 Element : 3 is:21

 Element : 4 is:32

 Element : 5 is:62

 The elements of array in reverse order are :

 Element : 5 is:62

 Element : 4 is:32

 Element : 3 is:21

 Element : 2 is:13

 Element : 1 is:45