{"id":"digits-dividing-num-preserves-input","text":"The original `num` parameter is never modified during digit extraction; a separate variable `n` is consumed by the `n % 10` / `n //= 10` loop","truth_value":"IN","source":"entries/2026/06/06/count-the-digits-that-divide-a-number-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"digits-dividing-num-preserves-input","truth_value":"IN","reason":"premise"}]}}