动态页面爬虫前的准备：https://www.cnblogs.com/maohuidong/p/18517953一：javamaven添加依赖：<dependency><groupId>us.codecraft</groupId><artifactId>webmagic-core</artifactId><version>0.7.4</version></dependency>&

我们从阿里云的数字可视化平台获取数据 http://datav.aliyun.com/tools/atlas爬取的链接如下：湖北省（不包含子区域）：https://geo.datav.aliyun.com/areas_v3/bound/420000.json湖北地级市（包含子区域）：https://geo.datav.aliyun.com/areas_v3/bound/420100_full.json（武汉市为例）湖北

CodeforcesRound940(Div.2)andCodeCraft-23题解题目链接A.Stickogon贪心#include<bits/stdc++.h>usingnamespacestd;#definefffirst#definesssecond#definepbpush_back#defineall(u)u.begin(),u.end()#defineendl'\n'#definedebu

A.Stickogon#include<bits/stdc++.h>usingnamespacestd;usingi32=int32_t;usingi64=longlong;#defineinti64usingvi=vector<int>;constintN=3e5,mod=1e9+7;voidsolve(){ vicnt(101); intn; cin>>n; for(i

CodeforcesRound940(Div.2)andCodeCraft-23前四题难度适中，总体还算不错，我想想都能做。E题考察威尔逊和质数筛前缀和算贡献。F题是数据结构，据说很版，还没补。A题：题意：给出n个木棍，最多组成多少个多边形Solution：统计各长度木棍的数量，全部贪心成三角形voidsolve(){ cin>>n;

A.Stickogon思路:Code:#include<bits/stdc++.h>usingnamespacestd;voidsolve(){intn;cin>>n;map<int,int>mp;for(inti=1,x;i<=n;i++){cin>>x;mp[x]++;}intans=0;f

目录写在前面ABCDE写在最后写在前面比赛地址：https://codeforces.com/contest/1957。大病场妈的A签到。尽可能凑三角形。///*By:Luckyblock*/#include<bits/stdc++.h>#defineLLlonglong//=============================================================//======