Program to accept 10 numbers and sort them with use of pointer

/* program to accept 10 numbers and sort them with use of pointer */
#include<stdio.h>
main ( )
{
    int i,j;
    int arr[10];
    int *a;
    a=arr;
    for ( i=0;i<10;i++)
    {
        printf ( "Enter the number %d : ",i+1);
        scanf ( "%d",&arr[i]);
    }
    printf ( "Before sorting:\n" );
    for ( i=0; i<10 ; i++)
        printf ( " %d    " , arr[i] );
    printf ( "\n" );
    a=arr;

    for ( i=0;i<10;i++)
       for ( j=0;j<10-i-1;j++)
        if ( *(arr+j) > *(arr+j+1))
            swap(arr+j , arr+j+1);

    printf ( " After sorting :\n" );

    for ( i =0 ; i < 10 ; i++)
        printf ( "%d  ",arr[i] );
    printf ( "\n" );
}
swap ( int *b , int *c )
{
    int temp;
    temp = *b;
    *b = *c;
    *c = temp;
}