102 条题解
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14
任何一个伟大的梦想，都有一个微不足道的开始。
但这个微不足道的开始可就不要抄题解了哟~
#include<iostream> using namespace std; int a,b; int main(){ scanf("%d%d",&a,&b); printf("%d",a+b); return 0; }-
15808079883 @ 2023-11-29 15:24:47
somebody
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15111808075 LV 5 @ 2023-11-19 16:21:19
#include<iostream> using namespace std; int a,b; int main(){ scanf("%d%d",&a,&b); printf("%d",a+b); return 0; } -
0
#include<iostream> using namespace std; int a,b; int main(){ scanf("%d%d",&a,&b); printf("%d",a+b); return 0; } -
0
15102326861
LV 6
@ 2023-10-21 16:20:43
终于可以写一份A+B
这么难的题的题解了。咦？竟然没有人写LCT的题解？
Link-Cut Tree 会很伤心的！
ORZ为了不让LCT伤心于是我来一份LCT的A+B题解吧！
送上代码：`
#include <cstring> #include <cstdio> #include <cstring> using namespace std; struct node { int data,rev,sum; node *son[2],*pre; bool judge(); bool isroot(); void pushdown(); void update(); void setson(node *child,int lr); }lct[233]; int top,a,b; node *getnew(int x) { node *now=lct+ ++top; now->data=x; now->pre=now->son[1]=now->son[0]=lct; now->sum=0; now->rev=0; return now; } bool node::judge(){return pre->son[1]==this;} bool node::isroot() { if(pre==lct)return true; return !(pre->son[1]==this||pre->son[0]==this); } void node::pushdown() { if(this==lct||!rev)return; swap(son[0],son[1]); son[0]->rev^=1; son[1]->rev^=1; rev=0; } void node::update(){sum=son[1]->sum+son[0]->sum+data;} void node::setson(node *child,int lr) { this->pushdown(); child->pre=this; son[lr]=child; this->update(); } void rotate(node *now) { node *father=now->pre,*grandfa=father->pre; if(!father->isroot()) grandfa->pushdown(); father->pushdown();now->pushdown(); int lr=now->judge(); father->setson(now->son[lr^1],lr); if(father->isroot()) now->pre=grandfa; else grandfa->setson(now,father->judge()); now->setson(father,lr^1); father->update();now->update(); if(grandfa!=lct) grandfa->update(); } void splay(node *now) { if(now->isroot())return; for(;!now->isroot();rotate(now)) if(!now->pre->isroot()) now->judge()==now->pre->judge()?rotate(now->pre):rotate(now); } node *access(node *now) { node *last=lct; for(;now!=lct;last=now,now=now->pre) { splay(now); now->setson(last,1); } return last; } void changeroot(node *now) { access(now)->rev^=1; splay(now); } void connect(node *x,node *y) { changeroot(x); x->pre=y; access(x); } void cut(node *x,node *y) { changeroot(x); access(y); splay(x); x->pushdown(); x->son[1]=y->pre=lct; x->update(); } int query(node *x,node *y) { changeroot(x); node *now=access(y); return now->sum; } int main() { scanf("%d%d",&a,&b); node *A=getnew(a); node *B=getnew(b); //连边 Link connect(A,B); //断边 Cut cut(A,B); //再连边orz Link again connect(A,B); printf("%d\n",query(A,B)); return 0; } -
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13983628673
LV 7
@ 2023-7-9 16:49:49
#include<bits/stdc++.h> using namespace std; int main(){ int a; int b; cin>>a>>b; cout<<a+b; return 0; } -
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18166485369 LV 6 @ 2023-6-3 9:49:08
#include using namespace std; int a,b; int main(){ scanf("%d%d",&a,&b); printf("%d",a+b); return 0; }
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#include<bits/stdc++.h> using namespace std; char a[200]; int main(){ int len,lenmax=0,t=0,end=0,k=0;//len：a的长；lenmax：最长单词长；t：当前单词长；end：词的结束索引 ；k：词的开始索引 gets(a);//输入字符数组a len = strlen(a);//获取a的长 for(int i=0;i<len;i++){//遍历a数组 if(a[i]!=' ' && a[i]!='.'){//如果不是空格或句号 t++;//那么当前单词长++ } else{//如果是空格或句号 if(t>lenmax){//判断当前单词长 > 最长单词长 lenmax = t;//将当前单词长赋值给最长单词长 k = i-t;//记录下该单词的起始位置 end=i-1; } t=0; } } for(int i=k;i<=end;i++){ cout<<a[i]; } cout<<" "<<lenmax; return 0; }
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15215179605 LV 9 @ 2023-4-8 11:31:39
FCDD
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# 比赛 1. **4** **2023-2** # [图论测试](http://219.153.61.2:20004/contest/63db2d0d35180016154171f3) * [IOI](http://219.153.61.2:20004/contest?rule=ioi) * Rated * 3.5 小时 * 15 1. **18** **2023-1** # [2023小学生邀请赛](http://219.153.61.2:20004/contest/63c5f79e1f47891a1a8f48e6) * [IOI](http://219.153.61.2:20004/contest?rule=ioi) * Rated * 3 小时 * 27 1. **18** **2023-1** # [phdhd的地狱邀请赛](http://219.153.61.2:20004/contest/63c52fc51f47891a1a8f465a) * [IOI](http://219.153.61.2:20004/contest?rule=ioi) * Rated * 4.2 小时 * 24 1. **24** **2022-12** # [树（2022年12月24日）](http://219.153.61.2:20004/contest/63a3f7b8286d4494ba8d73f6) * [IOI](http://219.153.61.2:20004/contest?rule=ioi) * Rated * 4 小时 * 12 1. **18** **2022-7** # [暑期汪老师班（18日上午）](http://219.153.61.2:20004/contest/62d35a815358837861a03636) * [ACM/ICPC](http://219.153.61.2:20004/contest?rule=acm) * Rated * 3 小时 * 6 [更多 >](http://219.153.61.2:20004/contest) # 作业 1. **5** **2023-4** # [深搜作业](http://219.153.61.2:20004/homework/6422934cac600753985e12d0) * 状态: 正在进行… * 开始时间: **21 年后** * 截止时间: **21 年后** 1. **5** **2023-4** # [矩阵作业](http://219.153.61.2:20004/homework/64229ccaac600753985e12e1) * 状态: 正在进行… * 开始时间: **21 年后** * 截止时间: **21 年后** 1. **26** **2023-3** # [3月18日冉老师布置作业](http://219.153.61.2:20004/homework/64157c6cac600753985d73b1) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **24** **2023-3** # [队列](http://219.153.61.2:20004/homework/6412f60673933e13205d347d) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **12** **2023-3** # [GCD与LCM](http://219.153.61.2:20004/homework/6402a05a24ef8ca4e1fdce37) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **6** **2023-3** # [质数作业2](http://219.153.61.2:20004/homework/63fb23dafe582d833fbf332f) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **6** **2023-3** # [质数作业1](http://219.153.61.2:20004/homework/63fb23a0fe582d833fbf332c) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **5** **2023-3** # [排序作业](http://219.153.61.2:20004/homework/63f973e2fe582d833fbf2114) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **28** **2023-2** # [线段树](http://219.153.61.2:20004/homework/63f24eb1fe582d833fbee370) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** 1. **26** **2023-2** # [字符数组2](http://219.153.61.2:20004/homework/63f048c2fe582d833fbeba96) * 状态: 已结束 * 开始时间: **21 年后** * 最终截止时间: **21 年后** [更多 >](http://219.153.61.2:20004/homework) # Ranking | 排名 | 用户名 | RP | 个人简介 | | - | - | - | - | | ------------------------------ | | 1 |  [文彦博 (13368253581)](http://219.153.61.2:20004/user/135) | 316 | 女人只会影响我拔刀的速度!😄  [王沛鑫 (202530384)](http://219.153.61.2:20004/user/146) | 314 | 不恋尘世浮华，不写红尘纷扰，不叹世道苍凉，不惹情思哀怨。闲看花开，静待花落，冷暖自知，干净如始。 | | 3 |  [admin ](http://219.153.61.2:20004/user/2)SU | 308 | | | 4 |  [unknown (202522184)](http://219.153.61.2:20004/user/191) | 278 | `该用户太懒，这里啥也没写´ (・ω・)` [Иосиф Виссарионович Сталин (202522249)](http://219.153.61.2:20004/user/192) | 272 | ... | | 6 |  [FlyingPig278 ( G2025 杨双源 ) (202530439)](http://219.153.61.2:20004/user/148) | 270 | I'd rather believe l'm a muggle than that there's no magic in th... | | 7 |  [童韵凝 (August)](http://219.153.61.2:20004/user/41) | 265 | | | 8 |  [宗琦瀚 (13022338777)](http://219.153.61.2:20004/user/137) | 263 | # **A生B,B生C,C生C++,C++生万物。** ~调皮~ --- 好了书归正传： #####... | | 9 |  [陈骢玮 (13436086078)](http://219.153.61.2:20004/user/162) | 259 | 死亡不是结束，而是另一种开始。 Administrator [[誓死坚守游戏下载\_Until We Die中文版下载[... | | 10 |  [丁宇平 (18623340398)](http://219.153.61.2:20004/user/94) | 255 | 3.2我是一刻也呆不下去了  ... | [更多 >](http://219.153.61.2:20004/ranking) # 一言 探索自己独一无二的世界，挺过黑夜，并创建您能想象的一切！ # 推荐 * ## 中文 1. [LibreOJ](https://loj.ac/) 1. [洛谷](https://www.luogu.com.cn/) 1. [UOJ](https://uoj.ac/) 1. [CometOJ](https://www.cometoj.com/) 1. [Vijos](https://vijos.org/) * ## English 1. [Codeforces](https://codeforces.com/) 1. [AtCoder](https://atcoder.jp/) 1. [CodeChef](https://www.codechef.com/) 1. [SPOJ](https://www.spoj.com/) 1. [TopCoder](https://www.topcoder.com/) 1. [OnlineJudge](https://onlinejudge.org/) * ## 工具 1. [OIerDb](https://oier.baoshuo.dev/) # 状态 * [评测队列](http://219.153.61.2:20004/record) * [服务状态](http://219.153.61.2:20004/status) # 开发 * [开源](https://github.com/hydro-dev/Hydro) * [API](http://219.153.61.2:20004/api) # 支持 * [帮助](http://219.153.61.2:20004/wiki/help) * [QQ 群](http://219.153.61.2:20004/wiki/about#contact) 1. [关于](http://219.153.61.2:20004/wiki/about) 1. [联系我们](http://219.153.61.2:20004/wiki/about#contact) 1. [隐私](http://219.153.61.2:20004/wiki/about#privacy) 1. [服务条款](http://219.153.61.2:20004/wiki/about#tos) 1. [版权申诉](https://hydro.js.org/#%E8%81%94%E7%B3%BB%E6%88%91%E4%BB%AC) 1. Language 1. [Legacy mode](http://219.153.61.2:20004/legacy?legacy=true) 1. 主题 1. 1. 1. Worker 0 in 40ms 1. Powered by [Hydro v4.9.7](https://hydro.js.org/) Community -
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using namespace std; const int N=1000; int n,s; double dp[N+5][N+5]; double dfs(int i,int j){ if(i==n&&j==s) return 0; if(dp[i][j]!=0) return dp[i][j]; dp[i][j]=1; if(i+1<=n) dp[i][j]+=dfs(i+1,j)*(n-i)*1.0*j/(n*s); if(j+1<=s) dp[i][j]+=dfs(i,j+1)*i*(s-j)/(1.0*n*s); if(i+1<=n&&j+1<=s) dp[i][j]+=dfs(i+1,j+1)*(n-i)*1.0*(s-j)/(n*s); dp[i][j]/=(1.0-i*j*1.0/(n*s)); return dp[i][j]; } int main(){ scanf("%d%d",&n,&s); printf("%.4lf\n",dfs(0,0)); return 0; } -
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13436086078 LV 8 @ 2023-3-20 20:35:52
贴下高精度
#include<bits/stdc++.h> using namespace std; int myCompare(string a,string b) { if(a.size()!=b.size()) { if(a.size()>b.size()) return 1; else return -1; } else { if(a>b) return 1; else if(a==b) return 0; else return -1; } } string myAdd(string a,string b) { int n=max(a.size(),b.size())+1; vector<int>ans(n,0); int i=a.size()-1,j=b.size()-1,k=n-1; while(i>=0&&j>=0) { ans[k--]=(a[i--]-'0')+(b[j--]-'0'); } while(j>=0) { ans[k--]=(b[j--]-'0'); } while(i>=0) { ans[k--]=(a[i--]-'0'); } string c=""; for(int i=n-1;i>0;i--) { if(ans[i]>=10) { ans[i]-=10; ans[i-1]++; } c.insert(0,1,ans[i]+'0'); } if(ans[0]>0) { c.insert(0,1,ans[0]+'0'); } return c; } int main(){ string a,b; cin>>a>>b; cout<<myAdd(a,b); return 0; } -
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[ ] 54 道题
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1. [](http://219.153.61.2:20004/) 1. [首页](http://219.153.61.2:20004/) 1. [题库](http://219.153.61.2:20004/p) 1. [训练](http://219.153.61.2:20004/training) 1. [比赛](http://219.153.61.2:20004/contest) 1. [作业](http://219.153.61.2:20004/homework) 1. [评测记录](http://219.153.61.2:20004/record?uidOrName=192) 1. [排名](http://219.153.61.2:20004/ranking) 1. [202522249 ](http://219.153.61.2:20004/user/192) [ ] 54 道题 * **1** | 状态 | 题目**显示标签** | AC / 尝试 | 难度[](javascript:;) | | - | - | - | - | | -------------------------------------------------------- | | [100 Accepted](http://219.153.61.2:20004/record/636cde756248fb90a93b86c3) | [**P7**【入门】鸡兔同笼问题](http://219.153.61.2:20004/p/7)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 43 / 100 | 4 | | --------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------- | ------ | | [100 Accepted](http://219.153.61.2:20004/record/636cde8e6248fb90a93b86d1) | [**P8**【入门】买小猫小狗](http://219.153.61.2:20004/p/8)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 27 / 51 | 3 | | [100 Accepted](http://219.153.61.2:20004/record/636ce3b66248fb90a93b87a9) | [**P15**【入门】百钱百鸡问题](http://219.153.61.2:20004/p/15)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 40 / 147 | 6 | | [100 Accepted](http://219.153.61.2:20004/record/6370ea546248fb90a93bde04) | [**P17**【入门】购买文具](http://219.153.61.2:20004/p/17)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 16 / 25 | 4 | | [100 Accepted](http://219.153.61.2:20004/record/6370ebbb6248fb90a93bde39) | [**P18**【入门】兑换硬币](http://219.153.61.2:20004/p/18)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 20 / 59 | 6 | | [100 Accepted](http://219.153.61.2:20004/record/6374862d6248fb90a93c3006) | [**P75**【基础】小青蛙回来了](http://219.153.61.2:20004/p/75)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 15 / 26 | 5 | | [100 Accepted](http://219.153.61.2:20004/record/6374873d6248fb90a93c30a6) | [**P76**【基础】寻找2的幂](http://219.153.61.2:20004/p/76)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 12 / 17 | 6 | | [100 Accepted](http://219.153.61.2:20004/record/637487736248fb90a93c30ca) | [**P77**【入门】桐桐的计算](http://219.153.61.2:20004/p/77)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 8 / 20 | 7 | | [100 Accepted](http://219.153.61.2:20004/record/637488036248fb90a93c30f2) | [**P78**【入门】桐桐去购物](http://219.153.61.2:20004/p/78)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 6 / 21 | 8 | | [100 Accepted](http://219.153.61.2:20004/record/637489056248fb90a93c317b) | [**P79**【入门】求恰好使s=1+1/2+1/3+…+1/n的值大于X时n的值。](http://219.153.61.2:20004/p/79)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 9 / 10 | 9 | | [100 Accepted](http://219.153.61.2:20004/record/63748ce36248fb90a93c31a1) | [**P80**【基础】三角形的个数](http://219.153.61.2:20004/p/80)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 8 / 16 | 8 | | [100 Accepted](http://219.153.61.2:20004/record/63748d1c6248fb90a93c31bc) | [**P82**【入门】时间转换](http://219.153.61.2:20004/p/82)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 9 / 19 | 7 | | [100 Accepted](http://219.153.61.2:20004/record/63748d406248fb90a93c31c9) | [**P83**【入门】猴子吃桃子](http://219.153.61.2:20004/p/83)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 32 / 90 | 5 | | [100 Accepted](http://219.153.61.2:20004/record/63748e116248fb90a93c31d5) | [**P84**【基础】回文数](http://219.153.61.2:20004/p/84)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 9 / 16 | 7 | | [100 Accepted](http://219.153.61.2:20004/record/63749bdc6248fb90a93c3360) | [**P85**【入门】因子求和](http://219.153.61.2:20004/p/85)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 5 / 18 | 8 | | [100 Accepted](http://219.153.61.2:20004/record/63749c216248fb90a93c336f) | [**P86**【入门】寻找雷劈数](http://219.153.61.2:20004/p/86)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 6 / 12 | 9 | | [100 Accepted](http://219.153.61.2:20004/record/63749c3f6248fb90a93c337b) | [**P87**【入门】姐妹数对](http://219.153.61.2:20004/p/87)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 6 / 8 | 9 | | [100 Accepted](http://219.153.61.2:20004/record/63749cf56248fb90a93c3387) | [**P88**【入门】两个自然数M和N的最小公倍数。](http://219.153.61.2:20004/p/88)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 11 / 15 | 6 | | [100 Accepted](http://219.153.61.2:20004/record/63749e566248fb90a93c33a8) | [**P89**【入门】求两个自然数M和N的最大公约数](http://219.153.61.2:20004/p/89)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 14 / 16 | 6 | | [100 Accepted](http://219.153.61.2:20004/record/63749f3d6248fb90a93c33b6) | [**P90**【入门】找数游戏](http://219.153.61.2:20004/p/90)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 4 / 11 | 9 | | [100 Accepted](http://219.153.61.2:20004/record/63749f946248fb90a93c33c2) | [**P91**【入门】同因查找](http://219.153.61.2:20004/p/91)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 7 / 8 | 9 | | [0 Format Error](http://219.153.61.2:20004/record/6374a0b36248fb90a93c33d0) | [**P92**【入门】奇数及偶数和](http://219.153.61.2:20004/p/92)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 0 / 8 | 10 | | [100 Accepted](http://219.153.61.2:20004/record/6374a31a6248fb90a93c33eb) | [**P93**【入门】aabb](http://219.153.61.2:20004/p/93)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 14 / 22 | 5 | | [100 Accepted](http://219.153.61.2:20004/record/637588826248fb90a93c40e2) | [**P121**【基础】“倒”数](http://219.153.61.2:20004/p/121)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 47 / 240 | 7 | | [100 Accepted](http://219.153.61.2:20004/record/638576e16248fb90a93d791b) | [**P220**【入门】买糕点](http://219.153.61.2:20004/p/220)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 2 | 10 | | [100 Accepted](http://219.153.61.2:20004/record/638577136248fb90a93d7927) | [**P227**【入门】阿凡提的难题](http://219.153.61.2:20004/p/227)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 3 / 6 | 10 | | [100 Accepted](http://219.153.61.2:20004/record/635cdfc26248fb90a939b599) | [**P241**【入门】角谷猜想](http://219.153.61.2:20004/p/241)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 5 / 24 | 8 | | [100 Accepted](http://219.153.61.2:20004/record/6397c2fd6248fb90a93eb064) | [**P248**【入门】求数列的第n项的值是多少？](http://219.153.61.2:20004/p/248)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 2 | 10 | | [100 Accepted](http://219.153.61.2:20004/record/6397c32b6248fb90a93eb070) | [**P249**【入门】搬砖问题](http://219.153.61.2:20004/p/249)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 3 / 11 | 9 | | [100 Accepted](http://219.153.61.2:20004/record/6397c4cc6248fb90a93eb07d) | [**P250**【入门】马克思手稿的问题](http://219.153.61.2:20004/p/250)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 3 / 7 | 10 | | | [**P261**【入门】该存多少钱](http://219.153.61.2:20004/p/261)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 0 / 3 | 10 | | | [**P310**【基础】第n盆花是什么颜色？](http://219.153.61.2:20004/p/310)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 14 / 112 | 8 | | | [**P315**【入门】队形数量求解](http://219.153.61.2:20004/p/315)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 4 | 10 | | | [**P329**【入门】需要举办多少场足球赛？](http://219.153.61.2:20004/p/329)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 4 / 6 | 10 | | | [**P339**【入门】怎样种树？](http://219.153.61.2:20004/p/339)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P346**【入门】植树的人数](http://219.153.61.2:20004/p/346)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 5 / 10 | 9 | | | [**P347**【入门】纸盒的最大体积是多少？](http://219.153.61.2:20004/p/347)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 4 | 10 | | | [**P348**【入门】买公园门票](http://219.153.61.2:20004/p/348)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P349**【入门】费马定理](http://219.153.61.2:20004/p/349)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 3 | 10 | | | [**P352**【入门】门票的定价](http://219.153.61.2:20004/p/352)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | [100 Accepted](http://219.153.61.2:20004/record/63771c536248fb90a93c78bb) | [**P353**【入门】小兔子的最大活动面积](http://219.153.61.2:20004/p/353)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 6 | 10 | | | [**P391**【入门】恐龙园买玩具？](http://219.153.61.2:20004/p/391)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P392**【入门】小丽找数？](http://219.153.61.2:20004/p/392)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P393**【入门】开学大采购？](http://219.153.61.2:20004/p/393)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P457**【入门】小明学游泳](http://219.153.61.2:20004/p/457)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P465**【基础】小鱼的航程](http://219.153.61.2:20004/p/465)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 2 | 10 | | | [**P466**【基础】数的统计](http://219.153.61.2:20004/p/466)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P788**【入门】换钞票](http://219.153.61.2:20004/p/788)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P789**【入门】采购水果](http://219.153.61.2:20004/p/789)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 2 | 10 | | | [**P957**【入门】数字之和](http://219.153.61.2:20004/p/957)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 3 | 10 | | | [**P1122**【入门】换钞票（2）（change）](http://219.153.61.2:20004/p/1122)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 0 / 0 | (无) | | | [**P1124**【入门】换零钱（1）](http://219.153.61.2:20004/p/1124)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 1 / 1 | 10 | | | [**P1128**【入门】找公约数](http://219.153.61.2:20004/p/1128)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 29 / 149 | 7 | | | [**P1129**【入门】求约数](http://219.153.61.2:20004/p/1129)* [需要找规律的循环](http://219.153.61.2:20004/p?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) | 2 / 2 | 10 | * **1** [ 进入编辑模式](javascript:;) # 分类 * [动态规划](http://219.153.61.2:20004/p?q=category%3A%E5%8A%A8%E6%80%81%E8%A7%84%E5%88%92) * [搜索](http://219.153.61.2:20004/p?q=category%3A%E6%90%9C%E7%B4%A2) * [分治](http://219.153.61.2:20004/p?q=category%3A%E5%88%86%E6%B2%BB) * [计算几何](http://219.153.61.2:20004/p?q=category%3A%E8%AE%A1%E7%AE%97%E5%87%A0%E4%BD%95) * [贪心](http://219.153.61.2:20004/p?q=category%3A%E8%B4%AA%E5%BF%83) * [树结构](http://219.153.61.2:20004/p?q=category%3A%E6%A0%91%E7%BB%93%E6%9E%84) * [图结构](http://219.153.61.2:20004/p?q=category%3A%E5%9B%BE%E7%BB%93%E6%9E%84) * [数论](http://219.153.61.2:20004/p?q=category%3A%E6%95%B0%E8%AE%BA) * [模拟](http://219.153.61.2:20004/p?q=category%3A%E6%A8%A1%E6%8B%9F) * [数据结构](http://219.153.61.2:20004/p?q=category%3A%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84) * [博弈论](http://219.153.61.2:20004/p?q=category%3A%E5%8D%9A%E5%BC%88%E8%AE%BA) * [字符串](http://219.153.61.2:20004/p?q=category%3A%E5%AD%97%E7%AC%A6%E4%B8%B2) * [组合数学](http://219.153.61.2:20004/p?q=category%3A%E7%BB%84%E5%90%88%E6%95%B0%E5%AD%A6) * [线性代数](http://219.153.61.2:20004/p?q=category%3A%E7%BA%BF%E6%80%A7%E4%BB%A3%E6%95%B0) * [高精度算法](http://219.153.61.2:20004/p?q=category%3A%E9%AB%98%E7%B2%BE%E5%BA%A6%E7%AE%97%E6%B3%95) * [递推](http://219.153.61.2:20004/p?q=category%3A%E9%80%92%E6%8E%A8) * [递归](http://219.153.61.2:20004/p?q=category%3A%E9%80%92%E5%BD%92) * [概率论](http://219.153.61.2:20004/p?q=category%3A%E6%A6%82%E7%8E%87%E8%AE%BA) * [NPC](http://219.153.61.2:20004/p?q=category%3ANPC) * [其他](http://219.153.61.2:20004/p?q=category%3A%E5%85%B6%E4%BB%96) [ 手气不错](http://219.153.61.2:20004/problem/random?q=category%3A%E9%9C%80%E8%A6%81%E6%89%BE%E8%A7%84%E5%BE%8B%E7%9A%84%E5%BE%AA%E7%8E%AF) 根据当前过滤条件随机选择一道题 # 状态 * [评测队列](http://219.153.61.2:20004/record) * [服务状态](http://219.153.61.2:20004/status) # 开发 * [开源](https://github.com/hydro-dev/Hydro) * [API](http://219.153.61.2:20004/api) # 支持 * [帮助](http://219.153.61.2:20004/wiki/help) * [QQ 群](http://219.153.61.2:20004/wiki/about#contact) 1. 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#include<bits/stdc++.h> using namespace std; struct zzh{ char xm[100]; int xb; int n; int y; int r; }; zzh a[1000]; bool hzz(zzh f,zzh g) { if(f.n>g.n) { return 0; } if(f.n==g.n) { if(f.y>g.y) { return 0; } if(f.y==g.y) { if(f.r>g.r) { return 1; } } return 1; } return 1; } int main() { cout<<"请输入一共有多少人"<<endl; int n; cin>>n; cout<<"输入每个人的 姓名 出生年份 出生月份 出生日"<<endl; for(int i=1;i<=n;i++){ cout<<"第"<<i<<"个人:"; cin>>a[i].xm>>a[i].n>>a[i].y>>a[i].r; } sort(a+1,a+n+1,hzz); cout<<endl; for(int i=1;i<=n;i++) { cout<<"第"<<i<<"大的:"; cout<<a[i].xm<<" "<<a[i].n<<" "<<a[i].y<<" "<<a[i].r<<endl; } return 0; } -
-2题解 - 【入门】大小写转换 - Hydro body { --font-family: "Microsoft Yahei", "Open Sans", "Seravek", "Segoe UI", "Verdana", "PingFang SC", "Hiragino Sans GB", "Lantinghei SC", "Microsoft Yahei", "WenQuanYi Micro Hei", "sans"; --code-font-family: "Ubuntu Mono", "monaco", "Source Code Pro", "Consolas", "Lucida Console", "monospace"; --font-ligatures: none !important; } #panel { display: flex; flex-direction: column; }
3 条题解
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0</li>
6 (tyz) LV 5
</span></div> </div> <div class="hasjs--hide"> <form method="post" class="dczcomments__box" name="dczcomments__box__form" data-hotkey="ctrl+enter:submit,esc:vjCommentBoxCancel"> <div> <textarea name="content" class="textbox" data-markdown required></textarea> </div> <div> <input type="submit" class="rounded primary button dczcomments__box__submit" value="分享 (Ctrl+Enter)" data-value-reply="回复 (Ctrl+Enter)" data-value-comment="分享 (Ctrl+Enter)" data-value-comment-update="更新 (Ctrl+Enter)" data-value-reply-update="更新 (Ctrl+Enter)"> <input type="button" class="rounded button nojs--hide" name="dczcomments__box__cancel" value="取消 (Esc)"> </div> <input type="hidden" name="operation" value="submit"> </form> </div> <div class="nojs--hide"> <textarea class="textbox" name="dczcomments__dummy-box" readonly data-form="{"operation":"submit"}" placeholder="发表您的题解"></textarea> </div> <div class="commentbox-placeholder"></div> <ul style="display:none"> <li class="dczcomments__reply commentbox-container"> <div class="media"> <div class="media__body top"> <div class="clearfix"> <div class="supplementary dczcomments__supplementary"> <span class="user-profile-link"> <img class="small user-profile-avatar v-center" loading="lazy" src="//cn.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?d=mm&s=64" width="20" height="20"> <a class="user-profile-name" href="/user/172"> 6 (tyz) </a></div> </div> <div class="commentbox-placeholder"></div> </div> </div> </li> </ul> </div>1题解 - 【入门】大小写转换 - Hydro body { --font-family: "Microsoft Yahei", "Open Sans", "Seravek", "Segoe UI", "Verdana", "PingFang SC", "Hiragino Sans GB", "Lantinghei SC", "Microsoft Yahei", "WenQuanYi Micro Hei", "sans"; --code-font-family: "Ubuntu Mono", "monaco", "Source Code Pro", "Consolas", "Lucida Console", "monospace"; --font-ligatures: none !important; } #panel { display: flex; flex-direction: column; }</li>#include<bits/stdc++.h> using namespace std; int main(){ char a; cin>>a; int v; v=int(a); a=a+32; printf("%c",a); return 0; }</div> <div class="commentbox-edit-target"></div> <ul class="dczcomments__replies commentbox-reply-target"></ul> </div>1汤涵棋 (202420502) LV 4 @ 2022-10-29 8:03:06
鸡
</span> @ 2023-2-18 2:05:22</div> <div class="commentbox-edit-target"></div> <ul class="dczcomments__replies commentbox-reply-target"> <li class="dczcomments__reply"> <div class="media"> <div class="media__body top"> <div class="clearfix"> <div class="supplementary dczcomments__supplementary"> <span class="user-profile-link"> <img class="small user-profile-avatar v-center" loading="lazy" src="//cn.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?d=mm&s=64" width="20" height="20"> <a class="user-profile-name" href="/user/172"> 6 (tyz) </a>盗我号是吧
</span> @ 2023-2-18 2:05:39</div> <div class="commentbox-edit-target"></div> </div> </div> </li> <li class="dczcomments__reply"> <div class="media"> <div class="media__body top"> <div class="clearfix"> <div class="supplementary dczcomments__supplementary"> <span class="user-profile-link"> <img class="small user-profile-avatar v-center" loading="lazy" src="//cn.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?d=mm&s=64" width="20" height="20"> <a class="user-profile-name" href="/user/172"> 6 (tyz) </a>可能还不够资格哈哈哈哈哈
</div> <div class="commentbox-edit-target"></div> </div> </div> </li></ul> </div>0</li></ul>给个全对的题解
</div> <div class="commentbox-edit-target"></div> <ul class="dczcomments__replies commentbox-reply-target"></ul> </div><ul class="pager pager-bottom"><li> <span class="pager__item current">1</span> </li></ul> </div> </div> </div>
3 条题解
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0</li>
</span></div> </div> <div class="hasjs--hide"> <form method="post" class="dczcomments__box" name="dczcomments__box__form" data-hotkey="ctrl+enter:submit,esc:vjCommentBoxCancel"> <div> <textarea name="content" class="textbox" data-markdown required></textarea> </div> <div> <input type="submit" class="rounded primary button dczcomments__box__submit" value="分享 (Ctrl+Enter)" data-value-reply="回复 (Ctrl+Enter)" data-value-comment="分享 (Ctrl+Enter)" data-value-comment-update="更新 (Ctrl+Enter)" data-value-reply-update="更新 (Ctrl+Enter)"> <input type="button" class="rounded button nojs--hide" name="dczcomments__box__cancel" value="取消 (Esc)"> </div> <input type="hidden" name="operation" value="submit"> </form> </div> <div class="nojs--hide"> <textarea class="textbox" name="dczcomments__dummy-box" readonly data-form="{"operation":"submit"}" placeholder="发表您的题解"></textarea> </div> <div class="commentbox-placeholder"></div> <ul style="display:none"> <li class="dczcomments__reply commentbox-container"> <div class="media"> <div class="media__body top"> <div class="clearfix"> <div class="supplementary dczcomments__supplementary"> <span class="user-profile-link"> <img class="small user-profile-avatar v-center" loading="lazy" src="//cn.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?d=mm&s=64" width="20" height="20"> <a class="user-profile-name" href="/user/172"> 6 (tyz) </a></div> </div> <div class="commentbox-placeholder"></div> </div> </div> </li> </ul> </div>1</li>#include<bits/stdc++.h> using namespace std; int main(){ char a; cin>>a; int v; v=int(a); a=a+32; printf("%c",a); return 0; }</div> <div class="commentbox-edit-target"></div> <ul class="dczcomments__replies commentbox-reply-target"></ul> </div>1鸡
</span> @ 2023-2-18 2:05:22</div> <div class="commentbox-edit-target"></div> <ul class="dczcomments__replies commentbox-reply-target"> <li class="dczcomments__reply"> <div class="media"> <div class="media__body top"> <div class="clearfix"> <div class="supplementary dczcomments__supplementary"> <span class="user-profile-link"> <img class="small user-profile-avatar v-center" loading="lazy" src="//cn.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?d=mm&s=64" width="20" height="20"> <a class="user-profile-name" href="/user/172"> 6 (tyz) </a>盗我号是吧
</span> @ 2023-2-18 2:05:39</div> <div class="commentbox-edit-target"></div> </div> </div> </li> <li class="dczcomments__reply"> <div class="media"> <div class="media__body top"> <div class="clearfix"> <div class="supplementary dczcomments__supplementary"> <span class="user-profile-link"> <img class="small user-profile-avatar v-center" loading="lazy" src="//cn.gravatar.com/avatar/d41d8cd98f00b204e9800998ecf8427e?d=mm&s=64" width="20" height="20"> <a class="user-profile-name" href="/user/172"> 6 (tyz) </a>可能还不够资格哈哈哈哈哈
</div> <div class="commentbox-edit-target"></div> </div> </div> </li></ul> </div>0</li></ul>给个全对的题解
</div> <div class="commentbox-edit-target"></div> <ul class="dczcomments__replies commentbox-reply-target"></ul> </div><ul class="pager pager-bottom"><li> <span class="pager__item current">1</span> </li></ul> </div> </div> </div>
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13983950916
LV 8
@ 2023-5-13 16:33:18
