据统计,追踪软件、金融数据和交易所股票的两项标普类股指数市值周二合计蒸发了约3000亿美元。
С первой проблемой напрямую связана и вторая — терроризм.
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Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
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