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取模的方法是错的,无论对多少取摸,给个简单的反例

Posted by dashashi at 2009-12-07 15:42:13 on Problem 1014
假设对K取模。如果K是偶数,那么对于数据K+1 0 1 0 0 0,取模之后是无法分割的,但是实际上是可以的。答案是K/2+2。

如果K是奇数(显然是不行的……也给个简单的反例),那么对于K+1 1 0 0 0 0,取模之后无法分割,答案也是K/2+2,(不过这里的K/2是把多出来的0.5舍去了的)
是测试数据太弱了

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