title: Clustering Programming Exercise Feasible or did the author forget to mention something?
body: <p>I have been reading and working on problems from a book written by Dr. Premchand S. Nair. I just want to know if this question is feasible or did he forget to mention some details? <strong>Not looking for anyone to solve it.</strong> The questions is as follows:</p>
  
  <p>Implement the following simple clustering algorithm. As a new point is entered by 
  the user, check whether or not it lies within any cluster. If so, mark it with the  cluster number. If it does not fall in any existing cluster, start a new cluster with the new point as center and radius, r, that is specified by the user and is the same for all clusters.</p>
  
  <p>That is the whole question.</p>