Adds a button which opens all the tasks in an atcoder contest. Saves loads of time!
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// ==UserScript==
// @name Atcoder All Tasks
// @namespace https://github.com/Satrpx/
// @description Adds a button which opens all the tasks in an atcoder contest. Saves loads of time!
// @author Satrpx
// @version 1.0
// @match *://atcoder.jp/contests/*
// @grant none
// @license MIT
// ==/UserScript==
function open(){
var num=document.getElementsByClassName("table table-bordered table-striped")[0].children[1].childElementCount;
for(var i=0;i<num;i++) window.open('https://atcoder.jp/contests/'+ind+'/tasks/'+ind+'_'+String.fromCharCode('a'.charCodeAt(0)+i));
}
var parent=document.getElementsByClassName("nav nav-tabs")[0];
var add=document.createElement("li");
var ind=location.href.split('/')[4];
parent.insertBefore(add,parent.children[2]);
var a=document.createElement("a");
add.appendChild(a);
a.textContent="All";
a.addEventListener('click',open);