{"id":"alien-dict-rank-map-idiom","text":"The alien dictionary solution builds a `{char: index}` dict from the ordering string, converting custom-alphabet comparison to integer comparison with O(1) lookups.","truth_value":"IN","source":"entries/2026/06/06/verifying-an-alien-dictionary-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"alien-dict-rank-map-idiom","truth_value":"IN","reason":"premise"}]}}