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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

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