思路：单调递减栈，找「上一个比当前价格大的元素索引」。正序遍历，弹出所有 ≤ 当前价格的索引；跨度 = 当前索引 - 栈顶索引（栈空则为 当前索引 + 1）。
BBC Radio 2 has named Stirling as this year's location for its flagship live music festival.
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Лариса Долина. Фото: Алексей Смагин / Коммерсантъ。关于这个话题，im钱包官方下载提供了深入分析
She added she had sores on her elbows from being on her front and was scheduled to remain in the clinic for two weeks.