heroku toolbelt是heroku的客户端程序包，包括Heroku client，Foreman和Git
heroku官网提供的安装方式是：wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh
但是在ubuntu 13.10下直接安装会报错，提示：
sh: 7: [[: not found
解决方案为将https://toolbelt.heroku.com/install-ubuntu.sh wget至本地，修改第13行
将deb http://toolbelt.heroku.com/ubuntu的http更改为https
#!/bin/sh ...GNU gperf是一款完美的哈希函数生成器。 给定一组字符串，它生成一个哈希函数和哈希表，采用C 或者 C++ 代码的形式，来根据输入的字符串寻找对应的值。哈希函数是完美的，这意味着哈希表没有冲突，并且哈希表的查找只需要一次字符串比较。
安装步骤：
1. 从GNU gperf官网（目前最新版为gperf-3.0.4）或者GNU镜像站下载gperf源码包
2. 将源码包上传至工程的git目录下，假设工程名为foo，则目录为$HOME/git/foo.git/
3. 将源码包解压 tar zxvf gperf-3.0.4.tar.gz，生成目录gperf-3.0 ...
Colored Sticks (POJ 2513)
Time Limit: 5000MS Memory Limit: 128000K
Description
You are given a bunch of wooden sticks. Each endpoint of each stick is colored with some color. Is it possible to align the sticks in a straight ...
The Average (POJ 2833)
Time Limit: 6000MS Memory Limit: 10000K
Case Time Limit: 4000MS
Description
In a speech contest, when a contestant finishes his speech, the judges will then grade his performance. The staff remove the highest grade and ...
1. MySQL数据库表变更，执行SQL：
ALTER TABLE `zinnia_entry`
ADD KEY `zinnia_entry_48fb58bb` (`status`),
ADD KEY `zinnia_entry_bc01ec33` (`start_publication`),
ADD KEY `zinnia_entry_663a7e5b` (`end_publication`),
ADD KEY `zinnia_entry_9f8d4624` (`creation_date`),
ADD KEY `zinnia_entry_1e346113` (`status`,`creation_date`,`start_publication`,`end_publication`);
ALTER TABLE `zinnia_entry_authors`
ADD CONSTRAINT `author_id_refs_id_7f9d0786` FOREIGN KEY (`author_id`) REFERENCES `auth_user ...