👉 A planigram is a concept in computer science that refers to a 2D array or graph where each node has exactly two children. This means that if you traverse this tree, you will only ever encounter one node at a time and it will be connected to all other nodes in the same level. For example, consider a simple planogram (a tree with two leaves) like this: ``` 1 / \ / \ 2 3 ``` In this
