class append

#include <iostream>

using namespace std;
class list{
public:
    int size,ind,*a;
    list(){
        a=new int[10];
        size=10;
        ind=0;
    }
    ~list(){
        delete[]a;
    }
    void append(int x){
        if(ind==size){

            int * b=new int[size + 10];
            for (int j=0;j<size;j++){
                b[j]=a[j];
            }
            size += 10;
            delete [] a;
            a = b;
        }

        a[ind++]=x;
    }
    void print(){
        for(int i=0;i<ind;i++){
            cout<<a[i]<<" , ";
        }
    }
};

int main()
{
    list a=list();
    for(int i=1;i<25;i++){
        a.append(i);
    }
    a.print();
}