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想问题一下这题的边界这么确定？输出有点搞不懂，牛人们帮帮忙啊这组数据的输出 3 500 500 499 0 0 999 1000 1000 200 Bill enters at (0.00, 1000.00) and leaves at (1000.00, 800.00). 问什么是enters at (0.00, 1000.00)？而不是(0.00, 999.00)？ 还有如果改成 3 500 500 500 0 0 999 1000 1000 200 是不是就没法通过？ 牛人们指点一下，谢谢了 Followed by:
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