{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do I calculate the storage cost of a concurrent tree on the blockchain in JavaScript?","a":"Define the tree structure: First, a data structure representing the concurrent  tree on the blockchain must be created. This can be a simple object array, where each object represents a node in the tree, containing information such as its key, left child, right child, etc."}]}],"pr":"40b9bfb6d6fde805225bc0cf8e868245d54847645a89484b0def39c5646e4370"}