{"id":"merge-trees-shares-subtrees-for-non-overlaps","text":"When one input tree is `None` at a position, `merge_trees` returns the other tree's subtree by reference — the output shares structure with the inputs for non-overlapping regions.","truth_value":"IN","source":"entries/2026/06/06/merge-two-binary-trees-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":["merge-trees-hybrid-ownership-semantics"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"merge-trees-shares-subtrees-for-non-overlaps","truth_value":"IN","reason":"premise"}]}}