Quiz 28: Find minimum distance to reach the border of rectangle

Problem:

Given a current position and diagonally opposite coordinates of a  rectangle. Find the minimum distance to reach border of rectangle from current position

Input Format: 

String x y x1 y1 x2 y2 where x,y is current position, x1,y1 and x2,y2 are opposite coordinates of a rectangle.

Output Format: 
Minimum distance

Constraints: 
none

Sample Input

1 3 -4 -4 5 5

Sample Output:
2

Explanations:-

Minimum distance is 1,3 to 1,5 ie 2

---

Solution:

chomp($n=<STDIN>);
@br=split(" ",$n);
$d=$br[0]-$br[2];
if($d<0)
{
$d=$d * -1;
}
$tmp=$br[0]-$br[4];
if($tmp<0)
{
$tmp=$tmp * -1;
}
if($d>$tmp)
{
$d=$tmp;
}
$tmp=$br[1]-$br[3];
if($tmp<0)
{
$tmp=$tmp * -1;
}
if($d>$tmp)
{
$d=$tmp;
}
$tmp=$br[1]-$br[5];
if($tmp<0)
{
$tmp=$tmp * -1;
}
if($d>$tmp)
{
$d=$tmp;
}
print "$d";

---

Tips:

Just find the distance from all coordinates and select minimum