AtCoder Algorithm Lectures Tab

AtCoderのナビゲーションバーの末尾に講義へのリンクを追加する

Version vom 04.06.2026. Aktuellste Version

Du musst eine Erweiterung wie Tampermonkey, Greasemonkey oder Violentmonkey installieren, um dieses Skript zu installieren.

You will need to install an extension such as Tampermonkey 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.

Sie müssten eine Skript Manager Erweiterung installieren damit sie dieses Skript installieren können

(Ich habe schon ein Skript Manager, Lass mich es installieren!)

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 Algorithm Lectures Tab
// @namespace    https://rino-program.github.io/WEBHub/
// @version      1.0.2
// @description  AtCoderのナビゲーションバーの末尾に講義へのリンクを追加する
// @author       Rino-program
// @match        https://atcoder.jp/*
// @grant        none
// @license      MIT
// ==/UserScript==

(function () {
    'use strict';

    window.addEventListener('load', () => {
        const menuList = document.querySelector('ul.header-page');

        if (menuList) {
            // href を空(javascript:void(0))にして、id を付与
            const lectureTabHtml = `
                <li>
                    <a href="javascript:void(0);" id="algo-lecture-link">
                        <span>AtCoder Algorithm Lectures</span>
                    </a>
                </li>
            `;

            menuList.insertAdjacentHTML('beforeend', lectureTabHtml);

            // クリックされたときに、余計なパラメータを挟まず直接URLを開く
            const linkElement = document.getElementById('algo-lecture-link');
            if (linkElement) {
                linkElement.addEventListener('click', (e) => {
                    e.preventDefault();
                    window.open('https://info.atcoder.jp/entry/algorithm_lectures/index', '_blank', 'noopener,noreferrer');
                });
            }
        }
    });
})();