this.stack = []; // 核心：存储索引，保证索引对应的价格单调递减
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Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08
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Lidl staff will be paid £13.45, or £14.80 in London, from 1 March. Until Aldi's announcement of a second wage hike, this made Lidl the highest-paying supermarket in the UK outside of London.