{"id":"solutions-trust-leetcode-input-contract","text":"Solutions across the repo perform no input validation — they trust that inputs satisfy LeetCode's stated constraints. Invalid inputs (wrong types, empty when guaranteed non-empty, malformed strings) produce undefined behavior rather than meaningful errors.","truth_value":"IN","source":"entries/2026/06/06/robot-return-to-origin-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"solutions-trust-leetcode-input-contract","truth_value":"IN","reason":"premise"}]}}