输入一个句子(由空格分隔的若干个词)将该句子按如下的要求输出:
1.第偶数个词反序,第奇数个词不反序
2.个词之间只留一个空格
3.句首和句尾不留空格-importation of a sentence (space separated by the number of words) Revise the sentence requested by the following output : 1. even the first-term anti-sequence, section 000 odd word does not fight sequence two. between the words out, leaving only a blank 3. the first sentence and the end of the sentence without leaving spaces
实现二叉树的后序的递归和非递归算法。
包括构造函数和析构函数。-After the realization of the sequence of binary tree recursive and non-recursive algorithm. Including the constructor and destructor.