{"id":"shared-linked-list-infra","text":"`ListNode`, `to_list`, and `from_list` from `merge-two-sorted-lists/solution.py` are imported by 400+ test files across the repo as de-facto shared linked-list infrastructure.","truth_value":"IN","source":"entries/2026/06/06/merge-two-sorted-lists-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"shared-linked-list-infra","truth_value":"IN","reason":"premise"}]}}