{"id":"groupby-for-consecutive-runs","text":"Solutions involving consecutive identical characters (e.g., decomposable substrings) use `itertools.groupby` for run-length encoding rather than manual loop-and-counter approaches.","truth_value":"IN","source":"entries/2026/06/06/check-if-string-is-decomposable-into-value-equal-substrings-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"groupby-for-consecutive-runs","truth_value":"IN","reason":"premise"}]}}