i have a problem with a homework assignment that i was given. the first part of the assignment asks me to do a program that uses the bubble funtion to sort an array of interger. so this is the program that i did

----------------------------------------------------------

void bubble_sort ( int a[], int n );

void test_sort ( int n );

void print ( int a[], int n );

#include<stdio.h>

int main ( void )

{

int n;

printf("Testing bubble sort on digits\n");

printf("Give the number of elements : ");

scanf("%d", &n);

test_sort(n);

return 0;

}

static void swap ( int *p, int *q)

{

int tmp = *p;

*p = *q;

*q = tmp;

}

void bubble_sort ( int a[], int n )

{

int i,j;

for (i=0; i<n-1; i++)

{

for (j=n-1; j>i; j--)

if (a[j-1] > a[j])

swap(&a[j-1],&a[j]);

printf("Array after pass %d : \n", i+1);

print(a,n);

}

}

void test_sort ( int n )

{

int a[n];

int i,num;

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

{

printf("Give %d integers\n",n);

printf(" give integer number %d: ",i+1);scanf("%d",&num);

a[i] = num;

}

printf("The %d numbers before sorting :\n", n);

print(a,n);

bubble_sort(a,n);

printf("The %d numbers after sorting :\n", n);

print(a,n);

}

void print ( int a[], int n )

{

int i;

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

printf(" %d", a[i]);

printf("\n");

}

-------------------------------

the second part of the problem asks me to modify the bubble function so that it terminates after the first pass in which no two elements are interchanged. i do not understand what are they trying to say by this. if anybody can help or explain what they probably mean, it will be greatly appreciated.