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这道题pascal实在是A不了，要是有delphi的编译器就好了

Posted by iRachex at 2008-06-16 21:50:48 on Problem 2886
In Reply To:我理解错题意把左右弄反了.....此帖作废 Posted by:iRachex at 2008-06-16 18:30:25 
pascal我都优化到极限了，treap,线段数，树状树组都写了
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