简单对话，每个人都能创建一个专家
(Image credit: Future)In essence, while the bill doesn't seem to require the most egregious forms of age verification (face scans or similar), it does require OS providers to collect age verification of some form at the account/user creation stage—and to be able to pass a segmented version of that information to outside developers upon request.
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The algorithm also visits children in order of distance to the query point. This means it checks the most promising quadrants first, which tends to find a good candidate early and enables aggressive pruning of the remaining quadrants. Without this ordering, the algorithm would still produce the correct result, but it would prune fewer nodes.
// We've been tampered with. Refuse to play.
* - this.arr：存储每日股票价格（按调用next的顺序）