GDD2011 DevQuiz Web Game

gdd2011.user.js

// ==UserScript==
// @name		GDD2011 Answer Web Game
// @namespace   http://www.atomer.sakuran.ne.jp
// @description GDD2011の神経衰弱自動解答スクリプト
// @include	 http://gdd-2011-quiz-japan.appspot.com/webgame/problem
// @version	 0.1
// ==/UserScript==

var s = document.querySelectorAll("script")[2].innerHTML, a, cards;

s = s.split("\n").join("");
a = s.replace(/^.+conc.setup\((\[.+\])\);.+$/, "$1"),
cards = JSON.parse(a);

if (typeof cards === "object") {
	conc_hack(cards);
} else {
	alert("parse error");
}

function $(q) {
	return document.querySelector(q);
}

function conc_hack(cards) {
	var answer = [], len = cards.length, i, j;

	for (i = 0; i < len; i++) {
		check: for (j = i + 1; j < len; j++) {
			if (answer[i] === undefined && cards[i] === cards[j]) {
				answer[i] = j;
				answer[j] = i;
				break check;
			}
		}
	}

	var submit = function(answer) {
		$("#answer").value = answer.join(",");
		$("#solve").submit();
	};
	
	submit(answer);
}