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这个......真的说不清阿，要用到排列组合的，我给你公式吧In Reply To:特别想知道诡异的logn方法，希望有人能够继续说明。。。 Posted by:js05 at 2005-05-18 13:03:01 answer=min(i*k+sigma(j=i..x)c(x,i)) Followed by:
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