tree-traversal - w3toppers.com

How can I find the closest previous sibling with class using jQuery?

Try: $(‘li.current_sub’).prevAll(“li.par_cat:first”); Tested it with your markup: $(‘li.current_sub’).prevAll(“li.par_cat:first”).text(“woohoo”); <script src=”https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js”></script> <ul> <li class=”par_cat”></li> <li class=”sub_cat”></li> <li class=”sub_cat”></li> <li class=”par_cat”>// this is the single element I need to select</li> <li class=”sub_cat”></li> <li class=”sub_cat”></li> <li class=”sub_cat current_sub”>// this is where I need to start searching</li> <li class=”par_cat”></li> <li class=”sub_cat”></li> <li class=”par_cat”></li> </ul> will fill up the closest … Read more

How to print a binary tree in as a structure of nodes in Python

Here is a function I created to print any binary tree structure. It is very generic and only needs a starting node (root) and a function (or lambda) to obtain a label and the left/right children nodes: You would typically use it like this on your Node class: printBTree(rootNode,lambda n: (n.operand, n.left, n.right) ) # … Read more

Explain Morris inorder tree traversal without using stacks or recursion

If I am reading the algorithm right, this should be an example of how it works: X / \ Y Z / \ / \ A B C D First, X is the root, so it is initialized as current. X has a left child, so X is made the rightmost right child of X‘s … Read more

Breadth First Vs Depth First

These two terms differentiate between two different ways of walking a tree. It is probably easiest just to exhibit the difference. Consider the tree: A / \ B C / / \ D E F A depth first traversal would visit the nodes in this order A, B, D, C, E, F Notice that you … Read more

How can I get selector from jQuery object

Ok, so in a comment above the question asker Fidilip said that what he/she’s really after is to get the path to the current element. Here’s a script that will “climb” the DOM ancestor tree and then build fairly specific selector including any id or class attributes on the item clicked. See it working on … Read more

jQuery find closest previous sibling with class

Python: Maximum recursion depth exceeded

You can increment the stack depth allowed – with this, deeper recursive calls will be possible, like this: import sys sys.setrecursionlimit(10000) # 10000 is an example, try with different values … But I’d advise you to first try to optimize your code, for instance, using iteration instead of recursion.

Recursive and non-recursive traversal of three degree tree

You’re incorrectly printing the node’s value twice. You don’t need to check node->mid, as this is checked inside inorder(node->mid);. inorder(node) { if (node) { inorder(node->left); print(“%d “, node->value); inorder(node->mid); inorder(node->right); } }