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你仔细想想问号表达式的执行就知道了，先把答案保存下来In Reply To:晕，我的线段树超时！我是把每个节点保存最大最小值。每次动态访问求得该线段的最大最小值。然后求差！ Posted by:chain0414 at 2007-08-05 05:13:34 Followed by: Post your reply here: |
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