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wa 无数次。。。。。。。谁来救救我:(

Posted by 273544537 at 2007-04-02 21:55:33 on Problem 3214
我的做法:
将堆转为一个序列s  (就是后序遍历)
例如:
      1
   2     3
 4   5  6  7

转为:  4   5  2   6   7   3   1

然后定义p[i]=s[i]-i
然后求出p 的最长不下降序列的长度l
然后用 ans=n-l
n为堆元素个数

为什么会错呢?

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