Tree-depth
Imagine you have a big tree with lots of branches and leaves. The tree depth is the number of levels or layers it has from the top down to the bottom.
Let's say you start at the top of the tree and follow one branch down to the next level or layer. That's one level. Then you follow another branch down to the next level, which is two levels. Keep going down and count each time you reach a new level until you reach the bottom of the tree.
So, the tree depth is like counting how many floors a building has. The higher the number of levels or layers you count, the deeper or taller the tree is.
Let's say you start at the top of the tree and follow one branch down to the next level or layer. That's one level. Then you follow another branch down to the next level, which is two levels. Keep going down and count each time you reach a new level until you reach the bottom of the tree.
So, the tree depth is like counting how many floors a building has. The higher the number of levels or layers you count, the deeper or taller the tree is.