Question

Write a main function that reads a list of integers from a user, adds to an array using dynamic memory allocation, and then displays the array. The program also displays the the largest element in the integer array.

Requirement: Using pointer notation.

Please do this with C++

Answer 1

Code:

#include<iostream>
using namespace std;
int main()
{
   /*Main function*/
   int n,i,larg;/*Declaring variables*/
   cout<<"Enter no of elements in the array: ";
   cin>>n;
   /*Reading size of the array from the user*/
   int *array=new int(n);
   /*declaring the dynamic array*/
   cout<<"Enter elements of the array:"<<endl;
   /*Asking user to enter the elements*/
   for(i=0;i<n;i++)
   {
       cin>>*(array+i);
       /*Here we read elements formt he user*/
       if(i==0)
       {
           /*If it is the first element we make first element as larg*/
           larg=*(array+0);
       }
       else
       {
           if(larg<*(array+i))
           {
               /*here we compare larg with the entered element
               if it is larger then we make larg as the new element*/
               larg=*(array+i);
           }
       }
   }
   cout<<"\nLargest element is: "<<larg;
   /*Finally we print the largest element of the array*/
}

Output:

Indentation: