xiaohanyu

#!/bin/bash
# run it with sudo
# https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04

SWAPFILE=/swapfile
SWAPSIZE=$1

ls $SWAPFILE && swapoff $SWAPFILE && rm $SWAPFILE
fallocate -l $SWAPSIZE $SWAPFILE
chmod 600 $SWAPFILE

xiaohanyu

Problem

There’s a chess board of size $N × N$, and an piece Knight, which has the initial position $(x, y)$.

Knight can step by going forward or backward two units in one direction, and one units in the other direction.

Find a way to position $(N, N)$ for this Knight piece.

xiaohanyu

require 'json'
require 'yaml'

input_filename = ARGV[0]
output_filename = input_filename.sub(/(yml|yaml)$/, 'json')

input_file = File.open(input_filename, 'r')
input_yml = input_file.read
input_file.close

xiaohanyu

# This file provide two pandoc filters for html and pdf output

module Nanoc::Filters

  class PandocHtml < Nanoc::Filter
    identifier :pandoc_html
    type :text => :text

    def run(content, params = {})
      input_format = case item[:extension]

xiaohanyu

#!/usr/bin/env ruby

require 'optparse'
require 'pry'

def main

  options = {to_encoding: 'utf-8'}
  option_parser = OptionParser.new do |opts|
    executable_name = File.basename($PROGRAM_NAME)

xiaohanyu

(add-to-list 'load-path "~/.emacs.d/el-get/el-get")

(unless (require 'el-get nil 'noerror)
  (with-current-buffer
      (url-retrieve-synchronously
       "https://raw.github.com/dimitri/el-get/master/el-get-install.el")
    (let (el-get-master-branch
          el-get-install-skip-emacswiki-recipes)
      (goto-char (point-max))
      (eval-print-last-sexp))))