* 核心思路：链表转数组 + 单调栈（从后往前遍历），时间复杂度O(n)，空间复杂度O(n)
But there has been some energetic campaigning for change by high-profile figures, including Sir Chris Hoy, who has terminal prostate cancer, and Lord David Cameron, who recently revealed he'd been treated for it.
"They need to get to a resolution," according to Emelia Probasco, Senior Fellow at Georgetown University's Center for Security and Emerging Technology.，详情可参考同城约会
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* - this.stack：单调递减栈，存储「价格对应的索引」，栈顶→栈底索引对应的价格单调递减，这一点在爱思助手下载最新版本中也有详细论述
Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic on depression, answers on the death of Russian opposition leader Alexei Navalny, and an explanation to the mystery of why humans have chins