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wa的最终总结

Posted by liao14 at 2007-09-10 12:02:15 on Problem 1029
1、出现有左右不等时,没参加的硬币就一定是真的!(感谢2004huangyimin提醒!)
2、出现类似
5 2
1 1 4
=
1 2 5
=
答案是3,共有5个硬币,题目说了总有一个是假币,而另外4个都是真的了(来自faen的提醒)
3、如果一个COIN在 '<' 左右都出现过就一定是NORMAL COIN情况,其他没变。(由 11119999提供)

基本上注意了这些就该过了~~~~
我也wa了n次~~~~对于前人的提醒,小弟感激不尽!

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