run time error in dynamically allocated array to delete an element in c++

Question

I have written a program in C++ to delete an element in a dynamically allocated array. I can see the array with the deleted element but after that, it produces some errors which I can't understand. I have included the images to the error as I wasn't able to copy the error message. I'm using:

Debian 9, 32 bit

Compiler clang.

IDE code::blocks.

The code:

#include<iostream>
#include<cstdlib>
using namespace std;

int main()
{
    int *ar,arsize,lp1,lp2,lp3,lp4,ele,pos;
    ar=nullptr;
    cout<<"enter the size of array to be created:- "; cin>>arsize;
    ar=new int[arsize];
    if(!ar)
    {
        cout<<"Aborting";
        exit(1);
    }
    else
    {
    cout<<"enter the elements for array:- ";
    for(lp1=0;lp1<arsize;lp1++)
    {
        cin>>ar[lp1];
    }
    cout<<"Enter element to be deleted:- "; cin>>ele;
    for(lp2=0;lp2<arsize;lp2++)
    {
        if(ar[lp2]==ele)
        {
            ar[lp2]=0;
            pos=lp2;
            break;
        }
    }
    for(lp3=pos;lp3<arsize;lp3++)
    {
        ar[lp3]=ar[lp3+1];
    }
    ar[arsize]=0;
    cout<<"new array is:-"<<endl;
    for(lp4=0;lp4<arsize-1;lp4++)
    {
        cout<<"\t"<<ar[lp4]<<endl;
    }
    delete[]ar;
    return 0;
    }
}

Answer 1

You are trying to access ar[arsize], which doesn't exist.

Remember, C++ arrays are 0 indexed.

So try ar[arsize-1] instead