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Re:if(p>=m) l=c+n;if(p<m) l=n-m+p; p>=m的时候c不就是p-m吗？为什么就会wa呢？In Reply To:if(p>=m) l=c+n;if(p<m) l=n-m+p; p>=m的时候c不就是p-m吗？为什么就会wa呢？ Posted by:alpc25 at 2006-04-10 18:53:49 想得太复杂了吧，其实关系很简单，算出顾客付出的钱pm，算出收到的假钱fm，可以算出老板收到的rm。老板一共损失了是cost＋pay＝bcm，所以老板损失了bcm－rm。 Followed by:
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