halida

#!/bin/sh
# run
# curl http://ow.ly/JI3j3 | sh

mkdir -p /tmp/chef-install && cd /tmp/chef-install
wget https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/12.04/x86_64/chefdk_0.4.0-1_amd64.deb
sudo dpkg -i *.deb
cd && rm -rf /tmp/chef-install

halida

filename = 'a.mp4'
target_path = '../processing'
(1..8).each do |i|
  t = i * 60
  target_file = File.join(target_path, "#{i}.jpg")
  `avconv -i #{filename} -ss #{t} -vcodec mjpeg -vframes 1 -an -f rawvideo -s 320x240 '#{target_file}'`
end
image_files = File.join target_path, '*.jpg'
`convert -delay 50 -loop 0 #{image_files} #{filename}.gif`

halida

require 'benchmark'



a = (1..1000).to_a
lookup = 100000.times.map{(rand*1000).to_i}

puts "for index"
puts Benchmark.measure {
  lookup.each{ |i| a.index(i) }

halida

mylib.close_to_tray = ->
    gui = require('nw.gui')
    win = gui.Window.get()
                                                                                                                                                     
    tray = null

    win.on 'close', ->
        this.hide()

        tray = new gui.Tray({ icon: 'icon.jpg' })

halida

#!/bin/sh
 
### BEGIN INIT INFO
# Provides:             god
# Required-Start:       $all
# Required-Stop:        $all
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    God
### END INIT INFO

halida

//-*-coding:utf-8-*-
//----------------------------------------------------------
// module: 1132
//----------------------------------------------------------
#include <cstdio>

#include <cmath>
#include <algorithm>
#include <vector>

halida

服务器创建后初始化

用root登陆，修改root密码：

passwd

创建用户

halida

11:58:24  write                                                                                              0.000010   ruby        
11:58:25  read                                                                                               0.510431 W ruby        
11:58:25  write                                                                                              0.000010   ruby        
11:58:25  ioctl                                                                                              0.000027 W ruby        
11:58:25  open              lida/.rvm/gems/ruby-2.0.0-p247/gems/coderay-1.0.9/lib/coderay/tokens_proxy.rb    0.000036   ruby        
11:58:25  fcntl                                                                                              0.000002   ruby        
11:58:25  fstat64                                                                                            0.000004   ruby        
11:58:25  fstat64                                                                            

halida

import std.stdio;
import std.socket;
import std.string;
import std.conv;
import std.random;
import std.outbuffer;
import core.thread;

int main() {
  auto s = new TcpSocket();

halida

name: inverse layout: true class: center, middle, inverse

#EasyOJ [linjunhalida]

我们为什么要作另外一个OJ?

---

layout: false