build binary tree from inorder and preorder with haskell

Construct binary tree from inorder and preorder with haskell Construct binary tree from inorder and postorder with haskell https://gist.github.com/evgenii-malov/c936a317e167ee5252e9048872e1d985

Note: nodes must be uniq! ... https://www.youtube.com/watch?v=RwxMqPyI1xc