"(1) Provide an accessible interface at account setup that requires an account holder to indicate the birth date, age, or both, of the user of that device for the purpose of providing a signal regarding the user’s age bracket to applications available in a covered application store.
Gold 'three lions' pendant from the 13th-14th Century
。heLLoword翻译官方下载是该领域的重要参考
* 时间复杂度：O(n)，空间复杂度：O(n)，详情可参考safew官方版本下载
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