Codeforces与洛谷题目链接跳转脚本
// ==UserScript==
// @name Codeforces与洛谷题目链接跳转
// @namespace https://github.com/yunfeidog/CodeforcesToLuogu
// @version 1.1
// @description Codeforces与洛谷题目链接跳转脚本
// @author dogyunfei
// @match https://*/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=tampermonkey.net
// @grant none
// @license MIT
// ==/UserScript==
(()=>{
if(window.location.host==="codeforces.com"){
let str=window.location.href
let bigBox=document.querySelector("#sidebar");
let myButton=document.createElement('button');
myButton.textContent="点击我去洛谷";
bigBox.appendChild(myButton);
let problemId=getProblemId(str);
let problemChar=getProblemChar(str);
console.log(problemId);
console.log(problemChar);
//给按钮添加点击事件
myButton.addEventListener('click',()=>{
location.assign("https://www.luogu.com.cn/problem/CF"+problemId+problemChar);
})
let tijie=document.createElement('button');
tijie.textContent="点击我去查看中文题解";
bigBox.appendChild(tijie);
tijie.addEventListener('click',()=>{
location.assign("https://www.luogu.com.cn/problem/solution/CF"+problemId+problemChar);
})
}else{
let str=window.location.href
// 找到最后一个 / 的位置
var lastSlashIndex = str.lastIndexOf("/");
// 从 URL 中截取出 ID 和最后的字符
var idStr = str.slice(lastSlashIndex + 1, -1); // "CF1714D"
let idNum =''+ parseInt(idStr.slice(2, 6)); // 1714
let lastChar ='' +idStr.charAt(idStr.length - 1); // "D"
var url='https://codeforces.com/contest/'+idNum+"/problem/"+lastChar;
console.log(url);
window.addEventListener('load', ()=>{
let mybutton=document.createElement('button');
mybutton.textContent="去打CF";
mybutton.addEventListener('click',()=>{location.assign(url)});
// 在这里编写需要在页面全部加载完毕后执行的操作
let cf=document.querySelector("#app > div.main-container > main > div > section.side > div:nth-child(1) > div > div:nth-child(1) > span:nth-child(2)");
let bigBox=document.querySelector("#app > div.main-container > div.wrapper.wrapped.lfe-body.header-layout.normal > div.header > div.functional > div.operation");
console.log(cf);
cf.addEventListener('click',()=>{location.assign(url)});
bigBox.appendChild(mybutton)
});
}
})();
function getProblemId(str){
let pos = str.indexOf("contest/") + "contest/".length;
let contestNum = "";
while (str[pos] >= '0' && str[pos] <= '9') {
contestNum += str[pos];
pos++;
}
return contestNum;
}
function getProblemChar(str){
let pos = str.indexOf("problem/") + "problem/".length;
let problemLetter = str.substr(pos);
return problemLetter;
}