摘要：
Suppose that all the keys in a binary tree are distinct positive integers. Given the postorder and inorder traversal sequences, you are supposed to ou 阅读全文
摘要：
ctrl + shift+a ： 代码格式化对齐 ctrl+左右键 ： 使光标移动一个单词的距离 shift+左右键 : 可以选中光标左右的一个字符 阅读全文
摘要：
A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number 阅读全文