Bubble Sort

Take an array as input and sort it in ascending order by Bubble Sort :-

#include<iostream.h>
#include<conio.h>

void main()
 {
    int a['z'],size;
      cout<<"\nEnter Size of Array : ";
      cin>>size;
      for(int i=0;i<size;i++)
       {
          cout<<"\nEnter Element "<<(i+1)<<" : ";
            cin>>a[i];
         }
      for(int i=0;i<=size;i++)
       {
          for(int j=0;j<size-1;j++)
             {
                if(a[j]>a[j+1])
                   {
                      int tmp=a[j];
                        a[j]=a[j+1];
                        a[j+1]=tmp;
                     }
               }
         }
      cout<<"Array after Sorting is \n";
      for(int i=0;i<size;i++)
       {
          cout<<"\nElement "<<(i+1)<<" : "<<a[i];

         }
      getch();
   }