title: Find the minimum number of circles which you have to remove such that the remaining circles are non-intersecting
body: <p>Let's us assume we have 3 circles</p>
  
  <pre><code>3
  0 0 5
  0 6 3
  7 0 4
  </code></pre>
  
  <p>if
  the first two terms are the coordinates of cirlce (x,y)and third term is radius.</p>
  
  <p>the answer would be "1"
  we can remove the 1st circle and rest 2 will not intersect. </p>
  
  <p>how to find such for n number of circles</p>