{"id":"no-runtime-input-validation","text":"Solutions do not validate input at runtime — they trust LeetCode's guaranteed constraints, and invalid input propagates native Python exceptions (`ValueError`, `TypeError`).","truth_value":"IN","source":"entries/2026/06/06/alternating-digit-sum-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"no-runtime-input-validation","truth_value":"IN","reason":"premise"}]}}