The proportion of people in the UK who feel dissatisfied with life has failed to improve since the pandemic despite the economic outlook improving, official figures show.
Lauren Hirst,North West。业内人士推荐safew官方版本下载作为进阶阅读
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* 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)