Another textbook problem. We take back of postorder array as the current root, and then we can split the inorder array: 1st half for current right chi...
分类：
其他好文 时间：
2014-07-23 12:01:56
阅读次数：
210
Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples: ["2", "1", "+", "3", "*"] -> ((2 + 1) * 3) -> 9 [...
分类：
其他好文 时间：
2014-07-23 11:37:06
阅读次数：
216
UVA 10689 - Yet another Number Sequence
题目链接
题意：斐波那契给前两项，求出第n项，并保留m位
思路：挺裸的矩阵快速幂，就是取模的值是10^m
代码：
#include
#include
const int mod[5] = {0, 10, 100, 1000, 10000};
int t, a, b, n, m;
s...
分类：
其他好文 时间：
2014-07-22 00:31:37
阅读次数：
279
eclipse导入工程时出现了如下问题：Invalid project description. /Users/yang/Documents/workspace/BarCodeTest overlaps the location of another project: 'BarCodeTest'原因...
分类：
移动开发 时间：
2014-07-22 00:03:34
阅读次数：
301
Distinct Subsequences
A subsequence of a given sequence is just the given sequence with some elements (possibly none) left out. Formally, given a sequence X = x1x2…xm,
another sequence Z = z1...
分类：
其他好文 时间：
2014-07-21 15:44:16
阅读次数：
244
antlr-2.7.7.jar ANTLR (ANother Tool for Language Recognition) 是一个PCCTS制定的语言工具， 它为他创建认定者，程序编译者，翻译者提供一个 包括 java,c#和C++在内的语法 描述框架， 使用from 多态查询语句时需要...
分类：
编程语言 时间：
2014-07-21 11:28:48
阅读次数：
205
Problem Description
In mathematics, a subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements. For example, ...
分类：
其他好文 时间：
2014-07-21 11:13:44
阅读次数：
270
Another recursion problem.class Solution {public: int getHeight(TreeNode *p) { if (!p) return 0; int hL = 1; if (p->left) h...
分类：
其他好文 时间：
2014-07-21 11:10:03
阅读次数：
180
Using cron seems
to add another entry point into your application, while Quartz would
integrate into it. So you would be forced to deal with some inter-process communication if you wanted to pass...
分类：
其他好文 时间：
2014-07-19 11:11:44
阅读次数：
373
第一个方法：append()方法 【1】$(selector).append(content)//向匹配的所有标签中的内容末尾处添加Html代码，会编译成页面显示。 1 2 3 4 11 12 13 This is a paragraph.14 This is another para...
分类：
Web程序 时间：
2014-07-18 22:11:16
阅读次数：
329
