atcoder new contest pager

display new contest page at page top

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.

(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     atcoder new contest pager
// @description display new contest page at page top
// @include https://*.contest.atcoder.jp/*
// @version  1
// @namespace https://twitter.com/root_T2
// @grant    none
// ==/UserScript==
var host = location.host;
if ( host.match(".contest.atcoder.jp")) {
  var contest_name = host.split(".contest.atcoder.jp")[0];
  var new_url = "https://atcoder.jp/contests/" + contest_name;
  var a = document.createElement('a');
	a.textContent = '新しいコンテストページ';
  a.setAttribute('href', new_url);
  a.setAttribute('style', "font-size: 30pt;");
  
  var div = document.createElement("div");
  div.setAttribute("style", "text-align:center;margin-bottom:15px;margin-top:20px;");
  div.appendChild(a);
  
  var header = document.getElementsByClassName('navbar navbar-fixed-top')[0];
  header.parentNode.insertBefore(div, header.nextSibling); 
  
}