103 Binary Tree Zigzag Level Order Traversal 35% Medium 104 Maximum Depth of Binary Tree 53% Easy 105 Construct Binary Tree from Preorder and Inorder Traversal 33% Medium 106 Construct Binary Tree ...

Python has all kinds of data validation tools, but every one of them seems to require defining a schema or form. I wanted to create a simple validation library where validating a simple value does not ...