Let us construct the Tree shown in the above figure
BinaryTree tree = new BinaryTree ( ) ; tree . root = new Node ( 1 ) ; tree . root . left = new Node ( 2 ) ; tree . root . right = new Node ( 3 ) ; tree . root . left . left = new Node ( 4 ) ; tree . root . left . right = new Node ( 5 ) ; Console . WriteLine ( " The ▁ minimum ▁ depth ▁ of ▁ binary ▁ tree ▁ is ▁ : ▁ " + tree . minimumDepth ( ) ) ; } }