Save_Paken_AtCoder_Account

If you try to participate on AtCoder in the shared account, this script stops you.

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 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.

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

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         Save_Paken_AtCoder_Account
// @namespace    https://tkpaken.github.io/beginners/
// @version      0.1
// @description  If you try to participate on AtCoder in the shared account, this script stops you.
// @author       kaage
// @match        https://atcoder.jp/*
// @grant        none
// ==/UserScript==

(function() {
    var str = (document.getElementsByClassName('dropdown-toggle'))[1].innerHTML;
    if(str.match('.*pakenTK.*')){
        var button = (document.getElementsByClassName('btn btn-lg btn-primary mt-2'))[0];
        button.parentNode.removeChild(button);
    }
})();