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理解题意是关键啊！

Posted by renmingjiang at 2008-05-18 17:42:07 on Problem 2470

    很奇怪的，此题的数据流也不是很大，当我用cin进行一系列的输入是会TLE，但是我换成了scanf后就AC了。
     还有一个非常关键的地方就是：You create a list of numbers where the i-th number is the position of the integer i in the permutation. 
     词句就是说 a[a[i]]==i 的意思。
      给出此信息以供后人参考。我也是个菜鸟啊！

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Re:理解题意是关键啊！ (18) Belldandy 2012-06-21 08:45:14

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