{"id":"string-immutability-eliminates-backtracking","text":"`binary_tree_paths` passes the accumulated path as a string parameter, relying on Python string immutability to give each recursive branch an independent snapshot without explicit undo or copy.","truth_value":"IN","source":"entries/2026/06/06/binary-tree-paths-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"string-immutability-eliminates-backtracking","truth_value":"IN","reason":"premise"}]}}