Bubble Sort using Templates

#include <iostream.h>
#include <conio.h>
template<class T>
void bubble (T a[],int n)
{
for (int i=0; i<n-1; i++)
for (int j=n-1; i<j; j--)
if (a[j]<a[j-1])
{
swap (a[j], a[j-1]);
}
}
template <class X>
void swap (X &a, X &b)
{
X temp=a;
a=b;
b=temp;
}


void main()
{
int x[5]={10,50,30,40,20};
float y[5]= {1.1,5.5,3.3,4.4,2.2};
clrscr();
bubble (x,5);
bubble (y,5);
cout << "sorted x-array:";
for (int i=0; i<5; i++)
cout<<x[i]<<","<<" ";
 cout << endl;
cout << "Sorted Y-array: ";
for (int j=0; j<5; j++)
cout << y[j]<<","<< " ";
cout << endl;
getch();
}