SlickGrid has this functionality, see the tree demo. If you want to build your own, here is an example (jsFiddle demo): Build your table with a data-depth attribute to indicate the depth of the item in the tree (the levelX CSS classes are just for styling indentation): <table id=”mytable”> <tr data-depth=”0″ class=”collapse level0″> <td><span class=”toggle … Read more
Perfect Tree: x / \ / \ x x / \ / \ x x x x / \ / \ / \ / \ x x x x x x x x Complete Tree: x / \ / \ x x / \ / \ x x x x / \ / x x … Read more
I played around with domi27’s idea and came up with this. I made a nested array as my tree, [‘link’][‘sublinks’] is null or another array of more of the same. Templates The sub-template file to recurse with: <!–includes/menu-links.html–> {% for link in links %} <li> <a href=”https://stackoverflow.com/questions/8326482/{{ link.href }}”>{{ link.name }}</a> {% if link.sublinks %} … Read more
The constraint is generally applied recursively to every subtree. That is, the tree is only balanced if: The left and right subtrees’ heights differ by at most one, AND The left subtree is balanced, AND The right subtree is balanced According to this, the next tree is balanced: A / \ B C / / … Read more
How to fix remove in RedBlackTree implementation?
The left-child, right-sibling representation (LCRS) is a way of encoding a multi-way tree (a tree structure in which each node can have any number of children) using a binary tree (a tree structure in which each node can have at most two children). Motivation To motivate how this representation works, let’s begin by considering a … Read more
Geez, I’ll have to actually type it up from Knuth. This solution is by Joseph M. Morris [Inf. Proc. Letters 9 (1979), 197-200]. As far as I can tell, it runs in O(NlogN) time. static void VisitInO1Memory (Node root, Action<Node> preorderVisitor) { Node parent = root ; Node right = null ; Node curr ; while (parent != null) { curr … Read more
Depth first search is more memory efficient than breadth first search as you can backtrack sooner. It is also easier to implement if you use the call stack but this relies on the longest path not overflowing the stack. Also if your graph is directed then you have to not just remember if you have … Read more
Binary tree: Tree where each node has up to two leaves 1 / \ 2 3 Binary search tree: Used for searching. A binary tree where the left child contains only nodes with values less than the parent node, and where the right child only contains nodes with values greater than or equal to the … Read more
Method’s right hand side (pattern matching) t match { case Empty => Empty case NonEmpty(elem, left, right) => if (elem < 0) throw new Exception else NonEmpty(elem, assertNonNegatve(left), assertNonNegative(right)) } means to check at runtime whether t is an instance of class Empty$ (object Empty) and then choose the first branch or otherwise whether t … Read more