bubble sort using linked list

[Mishu]

kindly guide me thru the errors in my code..why am i not getting a sorted list?

  #include <iostream>
using namespace std;
struct node
{
    int data;
    struct node *link;
};
typedef struct node *list;
int main()
{
    int dat,countt=0,swapp;
    char ch;
    list head,temp;
    head=NULL;
    cout<<"Enter the list of numbers you want to sort?(y/n)"<<endl;
    cin>>ch;
    while(ch=='y'||ch=='Y')
    {
        cout<<"Data?"<<endl;
        cin>>dat;
        temp=new node;
        temp->data=dat;
        temp->link=head;
        head=temp;
        cout<<"Enter another number?(y/n)?"<<endl;
        cin>>ch;
    }
    temp=head;
    cout<<"The numbers are\n";
    while(temp!=NULL)
    {
        cout<<temp->data<<"\t";
        temp=temp->link;
        countt++;
    }
    temp=head;
    cout<<"\n";
    cout<<countt;
    for(int i=0;i<countt;i++)
    {
        for(int j=0;j<countt;j++)
        {
            if((temp->data)>(temp->link->data))
            {
               swapp=temp->data;
               temp->data=temp->link->data;
               temp->link->data=swapp;
               temp=temp->link;
            }
        }
    }
    temp=head;
    cout<<"The numbers are\n";
    while(temp!=NULL)
    {
        cout<<temp->data<<"\t";
        temp=temp->link;
        countt++;
    }


}