title: Find minimum distance between points
body: <p>I have a set of points (x,y).</p>
  
  <p>i need to return two points with minimal distance.</p>
  
  <p>I use this:
  <a href="http://www.cs.ucsb.edu/~suri/cs235/ClosestPair.pdf" rel="nofollow">http://www.cs.ucsb.edu/~suri/cs235/ClosestPair.pdf</a></p>
  
  <p>but , i dont really understand how the algo is working.</p>
  
  <p>Can explain in more simple how the algo working?</p>
  
  <p>or suggest another idea?</p>
  
  <p>Thank!</p>