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windbells写的数据试过了？他后面7-9开头的是错的In Reply To:这里就保证了吧？ Posted by:TN at 2005-05-27 15:39:25 > ans[i]=max(1,m-(n-i)*(n-i-1)/2+1); > m-=ans[i]-1; Followed by:
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