Bubble Sort

#include "stdafx.h"
#include<iostream>
using namespace std;
int main()
{
int *arr;
arr=NULL;
int size,temp;
cout<<"How many elements you want to enter?"<<endl;
cin>>size;
arr=new int[size];
//delete[]arr;
for(int i=0;i<size;i++)
{
cout<<"Enter an integer:"<<endl;
cin>>arr[i];
}
cout<<"The sorted array is :"<<endl;
for(int i=0;i<size;i++)
{
cout<<arr[i]<<"\t";
}
for(int i=0;i<size;i++)
{
for(int j=0;j<size;j++)
{
if(arr[i]<arr[j])
{
temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
cout<<"\n\n";
cout<<"Sorted array is..."<<endl;
for(int i=0;i<size;i++)
{
cout<<arr[i]<<"\t";
}
cout<<"\n\n";
return 0;
}