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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
In Reply To:维护数组,只有maxsum简单DP,前几问都是打字题 Posted by:sunmoonstar_love at 2005-08-07 10:00:05
“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?!

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