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想错了555555告诫一下后人

Posted by checkoj at 2010-02-03 20:00:25 on Problem 2709
一次如果不只减1:
排序: 3 3 3 3
减3: 3 0 0 0
不能再减了

实际上:3 3 3 3
减->  3 2 2 2
排序->  2 2 2 3
减->  2 1 1 2
排序->  1 1 2 2
减->  1 0 1 1
排序->  0 1 1 1
减->  0 0 0 0
最多可以减4次

好可怜

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