{"id":"path-sum-self-contained-module","text":"`path-sum/solution.py` defines `TreeNode`, the solution function, and the full test suite (`TestPathSum` with 9 cases) in a single file.","truth_value":"IN","source":"entries/2026/06/06/path-sum-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"path-sum-self-contained-module","truth_value":"IN","reason":"premise"}]}}