gemire

#! /usr/bin/env python3

"""
Prerequirements:
1. brew install graphviz
2. pip3 install fire

Usage:
deps [path to code]
"""

gemire

package org.apache.spark.examples

import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.rdd.RDD
import java.util.Random
import scala.collection.mutable
import org.apache.spark.serializer.KryoRegistrator
import com.esotericsoftware.kryo.Kryo

gemire

`emacs --daemon` to run in the background.
`emacsclient.emacs24 <filename/dirname>` to open in terminal

NOTE: "M-m and SPC can be used interchangeably".

* Undo - `C-/`
* Redo - `C-?`
* Change case: 1. Camel Case : `M-c`
               2. Upper Case : `M-u`
               3. Lower Case : `M-l`

gemire

-- http://stackoverflow.com/questions/1124603/grouped-limit-in-postgresql-show-the-first-n-rows-for-each-group
-- http://www.postgresql.jp/document/9.2/html/tutorial-window.html

CREATE TABLE empsalary (
  depname varchar(10) not null
  , empno integer not null
  , salary integer not null
);

INSERT INTO empsalary (depname, empno, salary) VALUES ('develop', 11, 5200);

gemire

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

gemire

编程语言笔记

scheme笔记

---

语言基础

• atom: null?, zero?, number?, quote?
• list: car,cdr,cons
• control: cond else, let, define
• s expression = atom or list

gemire

Libraries

• jQuery - The de-facto library for the modern age. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
• Backbone - Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
• AngularJS - Conventions based MVC framework for HTML5 apps.
• Underscore - Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects.
• lawnchair - Key/value store adapter for indexdb, localStorage

gemire

Packages

• lxml - Pythonic binding for the C libraries libxml2 and libxslt.
• boto - Python interface to Amazon Web Services
• Django - Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.
• Fabric - Library and command-line tool for streamlining the use of SSH for application deployment or systems administration task.
• PyMongo - Tools for working with MongoDB, and is the recommended way to work with MongoDB from Python.
• Celery - Task queue to distribute work across threads or machines.
• pytz - pytz brings the Olson tz database into Python. This library allows accurate and cross platform timezone calculations using Python 2.4 or higher.

Guides

gemire

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

gemire

ACM大量习题题库 

ACM大量习题题库 
现在网上有许多题库，大多是可以在线评测，所以叫做Online Judge。除了USACO是为IOI准备外，其余几乎全部是大学的ACM竞赛题库。

USACO

http://ace.delos.com/usacogate

美国著名在线题库，专门为信息学竞赛选手准备