Binary Search Tree : Lowest Common Ancestor

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  1.  /* Node is defined as :
  2.  class Node 
  3.     int data;
  4.     Node left;
  5.     Node right;
  6.     
  7.     */

  9. static Node lca(Node root,int v1,int v2)
  10.     {

  12.        //Decide if you have to call rekursively
  13.     //Samller than both
  14.     if(root.data < v1 && root.data < v2){
  15.         return lca(root.right,v1,v2);
  16.     }
  17.     //Bigger than both
  18.     if(root.data > v1 && root.data > v2){
  19.         return lca(root.left,v1,v2);
  20.     }

  22.     //Else solution already found
  23.     return root;
  24.     }


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