{"id":"calpoints-stack-only","text":"`calPoints` uses a single list as a stack, accessing only `[-1]` and `[-2]` — never arbitrary indexes.","truth_value":"IN","source":"entries/2026/06/06/baseball-game-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"calpoints-stack-only","truth_value":"IN","reason":"premise"}]}}