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競技プログラミングの鉄則 演習問題集に難易度の星をつける
// ==UserScript==
// @name tessoku_display_difficulty
// @namespace http://tampermonkey.net/
// @version 0.2
// @description 競技プログラミングの鉄則 演習問題集に難易度の星をつける
// @author kumakumaaaaa
// @match https://atcoder.jp/contests/tessoku-book/tasks
// @icon https://www.google.com/s2/favicons?sz=64&domain=atcoder.jp
// @grant none
// ==/UserScript==
let id_to_star_num = {
"A01": 1,
"A02": 1,
"A03": 1,
"A04": 2,
"A05": 2,
"A06": 2,
"A07": 3,
"A08": 4,
"A09": 4,
"A10": 4,
"A11": 2,
"A12": 3,
"A13": 4,
"A14": 5,
"A15": 3,
"A16": 2,
"A17": 3,
"A18": 3,
"A19": 3,
"A20": 4,
"A21": 4,
"A22": 4,
"A23": 5,
"A24": 5,
"A25": 3,
"A26": 2,
"A27": 2,
"A28": 2,
"A29": 3,
"A30": 4,
"A31": 2,
"A32": 3,
"A33": 5,
"A34": 6,
"A35": 4,
"A36": 2,
"A37": 2,
"A38": 3,
"A39": 3,
"A40": 3,
"A41": 3,
"A42": 4,
"A43": 4,
"A44": 3,
"A45": 5,
"A46": 3,
"A49": 6,
"A50": 5,
"A51": 2,
"A52": 2,
"A53": 2,
"A54": 2,
"A55": 4,
"A56": 5,
"A57": 5,
"A58": 5,
"A59": 5,
"A60": 4,
"A61": 2,
"A62": 3,
"A63": 3,
"A64": 4,
"A65": 4,
"A66": 3,
"A67": 5,
"A68": 6,
"A69": 6,
"A70": 5,
"A71": 3,
"A72": 4,
"A73": 5,
"A74": 5,
"A75": 6,
"A76": 4,
"A77": 4,
"B01": 1,
"B02": 1,
"B03": 2,
"B04": 2,
"B06": 2,
"B07": 3,
"B08": 4,
"B09": 4,
"B11": 3,
"B12": 4,
"B13": 4,
"B14": 5,
"B16": 2,
"B17": 3,
"B18": 4,
"B19": 4,
"B20": 6,
"B21": 6,
"B22": 3,
"B23": 5,
"B24": 5,
"B26": 2,
"B27": 2,
"B28": 2,
"B29": 3,
"B30": 4,
"B31": 3,
"B32": 4,
"B33": 6,
"B34": 5,
"B36": 2,
"B37": 5,
"B38": 4,
"B39": 3,
"B40": 3,
"B41": 3,
"B42": 5,
"B43": 2,
"B44": 3,
"B45": 2,
"B51": 4,
"B52": 3,
"B53": 4,
"B54": 2,
"B55": 4,
"B56": 5,
"B57": 5,
"B58": 6,
"B59": 5,
"B61": 2,
"B62": 4,
"B63": 4,
"B64": 4,
"B65": 4,
"B66": 5,
"B67": 5,
"B68": 7,
"B69": 6,
"C01": 1,
"C02": 10,
"C03": 20,
"C04": 20,
"C05": 30,
"C06": 40,
"C07": 45,
"C08": 50,
"C09": 55,
"C10": 65,
"C11": 70,
"C12": 70,
"C13": 75,
"C14": 75,
"C15": 85,
"C16": 85,
"C17": 90,
"C18": 95,
"C19": 95,
"C20": 99
};
window.addEventListener('load', function() {
const problem_list = document.querySelector("#main-container > div.row > div:nth-child(2) > div > table > tbody").rows;
for (let i = 0; i < problem_list.length; i++) {
const problem = problem_list[i];
const problem_id = problem.childNodes[1].innerText;
const problem_name = problem.childNodes[3].innerText;
problem.childNodes[3].childNodes[0].childNodes[0].nodeValue = `【☆${id_to_star_num[problem_id]}】 ${problem_name}`;
};
});
const sort_by_difficulty = () => {
const table = document.querySelector("#main-container > div.row > div:nth-child(2) > div > table > tbody");
const tr = [...table.querySelectorAll("tbody > tr")].map((e) => { return { e: e, v: id_to_star_num[e.childNodes[1].innerText] }; }).sort((a, b) => (a.v < b.v ? -1 : 1));
while (table.firstChild) {
table.removeChild(table.firstChild)
}
tr.forEach((e) => table.appendChild(e.e));
}
const sort_by_id = () => {
const table = document.querySelector("#main-container > div.row > div:nth-child(2) > div > table > tbody");
const tr = [...table.querySelectorAll("tbody > tr")].map((e) => { return { e: e, v: e.childNodes[1].innerText }; }).sort((a, b) => (a.v < b.v ? -1 : 1));
while (table.firstChild) {
table.removeChild(table.firstChild)
}
tr.forEach((e) => table.appendChild(e.e));
}
let sort_button = document.createElement('button');
sort_button.className = 'btn btn-default';
sort_button.innerText = '難易度順でソート';
let is_sorted_by_id = true;
let a = document.querySelector("#main-container > div.row > div:nth-child(2) > h2");
a.parentNode.insertBefore(sort_button, a.nextSibling);
sort_button.onclick = () => {
if (is_sorted_by_id) {
sort_by_difficulty();
sort_button.innerText = "問題番号でソート";
}
else {
sort_by_id();
sort_button.innerText = '難易度順でソート';
}
is_sorted_by_id = !is_sorted_by_id;
};