More loops

I need to use two loops and an if statement to sort the contents of
this array so
that the number go from lowest to highest.

#!/usr/bin/perl

@array = (5,3,2,1,4);

## include your code here ##

foreach $elem (@array){
print "$elem";
}

Looking further into this it was revealed to me that I should use a
bubble loop. Such as this:

for (i=0; i<n-1; i++) {
for (j=0; j<n-1-i; j++)
if (a[j+1] < a[j]) { /* compare the two neighbors */
tmp = a[j]; /* swap a[j] and a[j+1] */
a[j] = a[j+1];
a[j+1] = tmp;
}
}

So I tried to implement this:

#!/usr/bin/perl

@array = (5,3,2,1,4);

for (i=0; i<n-1; i++) {
for (j=0; j<n-1-i; j++)
if ($array[j+1] < $array[j]) { /* compare the two neighbors */
tmp = $array[j]; /* swap $array[j] and $array[j+1] */
$array[j] = $array[j+1];
$array[j+1] = tmp;
}
}

foreach $elem (@array){
print "$elem\n";
}

I know I'm close (right?). What am I missing here?

Thanks

Amichai

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