2015/03/06 DeNA問題とVasily問題の回答

dena.js

var STR = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_!+-/.:";
var INPUT = "JfnAmrOmaTrRr:lmiCLmgCUpmoRRF/yycf:T!ZC-yuFyLfZLUrRyORUcf:ROy-fOOTlfiLC-iCU:cfLy";
var LOOP = 100000;

function adjust(n) {
  while (n > 58) {
    n -= 59;
  }
  while (n < 0) {
    n += 59;
  }
  return n;
}
function D_(n) {
  return n * 2 + 1;
}
function e_(n) {
  return n * 2 - 2;
}
function n_(n) {
  return n * 2 + 4;
}
function a_(n) {
  return n * 2 - 8;
}

function strToArray(s) {
  var ret = [];
  for (var i=0; i<s.length; i++) {
    ret.push(STR.indexOf(s.charAt(i)));
  }
  return ret;
}
function arrayToStr(array) {
  var ret = "";
  for (var i=0; i<array.length; i++) {
    ret += STR.charAt(array[i]);
  }
  return ret;
}

function calc(input, loop) {
  var rules = [D_, e_, n_, a_];
  var array = strToArray(input),
    idx = 0;
  for (var i=0; i<loop; i++) {
    func = rules[idx++];
    for (var j=0; j<array.length; j++) {
      var n = adjust(func(array[j]));
      array[j] = n;
    }
    if (idx >= rules.length) {
      idx = 0;
    }
  }
  return arrayToStr(array);
}
console.log(calc(INPUT, LOOP));

vasily.js

var
  env = require("jsdom").env,
  najax = require("najax"),
  url = "http://item.iqon.jp/lcat11/page-7/";

function getId($item) {
  var 
    str = $item.find("a:first").attr("href"),
    array = str.split("/");
  return array.length >= 2 ? array[array.length - 2] : null;
}
function getName($item) {
  return $item.find(".item-box-info-name").text();
}
function getPrice($item) {
  var ret = $item.find(".item-box-info-price-before").text();
  if (!ret) {
    ret = $item.find(".item-box-info-price").text();
  }
  return ret.replace(/[\\¥,]/g, '');
}
function getSalePrice($item) {
  var ret = $item.find(".item-box-info-price-sale").text();
  if (ret) {
    ret = ret.replace(/[\\¥,]/g, '');
  }
  return ret;
}
function getBrandName($item) {
  return $item.find(".item-box-brand a").text();
}
function getImageUrl($item) {
  return $item.find("img").attr("data-original");
}
function process($) {
  var $items = $.find(".item-box");
  $items.forEach(function(item) {
    var 
      $item = $(item),
      id = getId($item),
      ret = [];
    if (id) {
      ret.push(id);
      ret.push(getName($item));
      ret.push(getPrice($item));
      ret.push(getSalePrice($item));
      ret.push(getBrandName($item));
      ret.push(getImageUrl($item));
      console.log(ret.join(","));
    }
  });
}
najax({
  "type": "GET",
  "url": url,
  "success": function(data) {
    env(data, function(errors, window) {
      var $ = require("jquery")(window);
      process($);
    });
  }
});