bouble sort in function

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

void bubble_sort( int tab[], int n)
{
    int step;
    int temp;
    int i;
    for( step=0; step<n-1; ++step)
    for(i=0; i<n-step-1;++i)
    {
        if(tab[i]>tab[i+1])
        {
            temp = tab[i];
            tab[i]=tab[i+1];
            tab[i+1]= temp;

        }
    }
}

 int main ()
 {    int i;
    int tab[100];
    int n,step, temp;
    printf("\nEnter then natural number of  elements to be sorted: \n ");
    scanf("%d", &n);

    for (i=0; i<n; i++)
    {
    printf("\nEnter the element : % d   ", i+1);
    scanf( "%d" , &tab[i]); // not put space after d :>
    fflush(stdin);
    }


    for (i=0; i<n; i++)
    {

        bubble_sort(tab, n);
        printf("%d ", tab[i]);

    }


    return 0;
}