atcoder-problem-navigator

Shows a navigation bar on AtCoder contest pages for jumping to problems.

Від 24.05.2019. Дивіться остання версія.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         atcoder-problem-navigator
// @namespace    https://github.com/yoshrc
// @version      1.1
// @description  Shows a navigation bar on AtCoder contest pages for jumping to problems.
// @author       yoshrc
// @match        https://atcoder.jp/contests/*
// @grant        none
// @require http://code.jquery.com/jquery-3.3.1.min.js
// ==/UserScript==

(function() {
    'use strict';

    const contest = location.href.match(/^https:\/\/atcoder\.jp\/contests\/([^\/]+)/)[1];
    const key = 'atcoder-problem-navigator-' + contest;

    if (location.href.match(/^https:\/\/atcoder\.jp\/contests\/([^\/]+)\/tasks\/?$/)) {
        const problems = [];
        const $rows = $('tbody>tr');
        for (let i = 0; i < $rows.length; i++) {
            const $links = $rows.eq(i).find('a');
            const href = $links.eq(0).attr('href');
            const text = $links.eq(0).text() + ' - ' + $links.eq(1).text();
            problems.push({
                href: href,
                text: text
            });
        }
        localStorage[key] = JSON.stringify(problems);
    }

    if (key in localStorage) {
        let problems = JSON.parse(localStorage[key]);
        const $problemsBar = $('<ul class="nav nav-tabs"></ul>');
        for (let i = 0; i < problems.length; i++) {
            const $link = $('<a style="margin-left: 10px; margin-right: 10px; white-space: nowrap"></a>')
                  .attr('href', problems[i].href)
                  .text(problems[i].text);
            $problemsBar.append($('<span> </span>').append($link));
        }
        $('#contest-nav-tabs').append($problemsBar);
    }
})();