{"id":"lazy-single-pair-parsing","text":"`StringIterator` parses at most one `(char, count)` pair at a time via a cursor — it never pre-processes the entire compressed string, keeping memory O(1) even for counts up to 10^9.","truth_value":"IN","source":"entries/2026/06/06/design-compressed-string-iterator-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"lazy-single-pair-parsing","truth_value":"IN","reason":"premise"}]}}