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确实是错了，Sample最后一个数字应该是3In Reply To:瑰丽的华尔兹，题目描述是不是错了？（见内） Posted by:mostleg at 2005-08-07 10:14:55 > “di为1, 2, 3, 4中的一个，依次表示北、南、西、东（分别对应矩阵中的上、下、左、右）。” > > > 可是样例的解释图中，2表示的是左啊？！ Followed by:
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