Drag out a search region below and watch the brute-force approach check every point, one by one:
有客人钻进包厢了，几只反应迅速的“老虎”立刻拎着化妆包在包厢外排起了队，等待被客人选中，落选的小姐只能回到座位上等着下一次机会。
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* @param n 数组长度
Unix pipes are perhaps the purest expression of this idea: