{"id":"repo-solutions-are-pure-stdlib","text":"All four solutions examined use no external dependencies — pure Python stdlib only (at most `collections.Counter`, `typing`, `unittest`)","truth_value":"IN","source":"entries/2026/06/06/two-sum-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"repo-solutions-are-pure-stdlib","truth_value":"IN","reason":"premise"}]}}