C++ Program To Read Infinite Number And Sort In Ascending Order Using Pointer

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

int main()
{
  
   int *p,*q,i=1,j,k,temp;
  
   cout<<"Enter Infinite Numbers and (-1 To Stop Reading)\n";
  
   p=(int*)malloc(sizeof(int));
   cin>>p[0];

   while(p[i-1]!=-1)
   {
    i++;
    p=(int*)realloc(p,sizeof(int)*i);
    q=p;
    cin>>p[i-1];
   }
   
    p=q;
  
   for(j=1;j<i;++j)
   {
    for(k=0;k<i-j-1;++k)
    {
     if(p[k]>p[k+1])
     {
      temp=p[k];
      p[k]=p[k+1];
      p[k+1]=temp;
     }
    }
   }
   
    cout<<"\nAscending Order Is Given Below \n\n";

 for(j=0;j<i-1;++j)
   {
    cout<<" "<<p[j];
   }
}

Output:

Enter Infinite Numbers and (-1 To Stop Reading)

12

09

23

78

45

56

25

58

96

52

-1

Ascending Order Is Given Below 

 9 12 23 25 45 52 56 58 78 96