Since 2018 around 1,000 archaeologists have been involved in 60 digs along the route HS2 is set to take between London to Birmingham.
思路：链表转数组 + 单调栈（从后往前遍历）。与「下一个更大元素」模板一致，仅需将链表值先提取到数组。，这一点在同城约会中也有详细论述
，更多细节参见同城约会
And while this implementation is California-specific, it does speak to a wider desire from governments to enforce age verification on a legal level—even if in this case, it seems virtually impossible to effectively enact.
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tasks = append(tasks, t)