hydro.ac Open in urlscan Pro
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POST /login

<form action="/login" method="post">
  <div class="dialog--signin__close-container supplementary">
    <a name="dialog--signin__close" href="javascript:;">CLOSE</a>
  </div>
  <h1 class="dialog--signin__title">SIGN IN</h1>
  <p class="dialog--signin__note">Using your HydroOJ universal account</p>
  <div class="row">
    <div class="columns">
      <label class="material textbox"> Username <input name="uname" type="text" data-autofocus="">
      </label>
    </div>
  </div>
  <div class="row">
    <div class="columns">
      <label class="material textbox"> Password <input name="password" type="password">
      </label>
    </div>
  </div>
  <div class="row">
    <div class="columns">
      <label class="checkbox">
        <input type="checkbox" name="rememberme" class="checkbox">Remember me </label>
    </div>
  </div>
  <div class="row">
    <div class="columns">
      <input type="hidden" name="tfa" value="">
      <input type="hidden" name="authnChallenge" value="">
      <input type="submit" value="Login" name="login_submit" class="expanded rounded primary button">
    </div>
  </div>
  <div class="row">
    <div class="columns">
      <a href="/oauth/github" class="expanded rounded button">Login with Github</a>
    </div>
  </div>
  <div class="row">
    <div class="columns">
      <div class="supplementary text-center">
        <a href="/lostpass">Forgot password or username?</a>
      </div>
    </div>
  </div>
</form>

Text Content

 1. 
 2. Home
 3. Problem Set
 4. Training
 5. Contest
 6. Discussion
 7. Record
 8. More

 1. Login
 2. Sign Up
 3. Language



想要免费创建一个属于自己的 OJ 吗？

新用户必读

Hydro 项目用户群（1085853538）

hydro.ac 用户群（1091497622）

给我们投食

Github Repo (AGPL 3.0)


推荐题库列表

浴谷 | 计算机科学教育新生态

测试题域

Codeforces

CCF 真题

USACO

一本通启蒙篇/入门/提高

BZOJ

SPOJ

UOJ

POJ

LOJ


CONTEST

 1. 10
    2023-6
    
    
    「SFCOI-2」SADNESS FAN CLUB ROUND 2
    
     * IOI
     * Rated
     * 4 hour(s)
     * 58

 2. 11
    2023-3
    
    
    「SFCOI-1」SADNESS FAN CLUB ROUND 1
    
     * IOI
     * Rated
     * 4 hour(s)
     * 67

 3. 9
    2022-4
    
    
    愚人节比赛
    
     * IOI
     * 48 hour(s)
     * 104

 4. 12
    2022-2
    
    
    「退群杯」3RD
    
     * ACM/ICPC
     * Rated
     * 5 hour(s)
     * 205

 5. 11
    2022-2
    
    
    「退群杯」3RD 热身赛
    
     * ACM/ICPC
     * 2.2 hour(s)
     * 130

 * More >


RANKING

Rank Username RP Bio

1 liujiameng 414 充值使用 ide Macesuted 可爱！ || [个人题库](h... 2 Macesuted QWQ SU 399
About Me [My Code Reposito... 3 baoshuo MOD 393 学习，就是发现自己越来越菜的过程。 || 个人主页
[Blog](https... 4 Maplisky 枫 369 AFOed | 退... 5 myee 362 ... 6 undefined 可爱！ SU
360 2021-9-19 记 > 我到现在都没有自己的博客站，之前wp，hexo，typecho都用过，然后发现————原来我根... 7
Liking_Cpp_In_Luogu 346 A Liking_Cpp OIer 8 Che_001 336 9 Ruiqun2009 314 原个人主页 -
2022.9.18 参加了 CSP-J2022 第一轮考试。 - ... 10 寒鸽儿 MOD 313 寒鸽儿咕咕咕

 * More >


DISCUSSION

 1.  41
     Comments
     
     
     HYDROOJ 每日一题
     
      * HydroOJ
      * 5421 views
      * Macesuted @ 2 weeks ago

 2.  41
     Comments
     
     
     【站务】【新用户必读】站务整合帖
     
      * HydroOJ
      * 8158 views
      * Rosmarinus @ 3 weeks ago

 3.  1
     Comments
     
     
     关于 LATEX
     
      * 问答
      * 9 views
      * 王靖翔 @ 1 day ago

 4.  0
     Comments
     
     
     论我在题目功能配置样例中把HACK测试干成了高精度
     
      * Hydro
      * 29 views
      * zhengzhiyun2011 @ 6 days ago

 5.  1
     Comments
     
     
     关于训练功能功能
     
      * Hydro
      * 51 views
      * Mayile @ 2 weeks ago

 6.  0
     Comments
     
     
     #P1539F. STRANGE ARRAY一题令人费解
     
      * 编程
      * 26 views
      * zhujunrui @ 2 weeks ago

 7.  1
     Comments
     
     
     如何对一道题目不同的提交语言设置不同的时空限制
     
      * Hydro
      * 28 views
      * ModCx @ 1 week ago

 8.  1
     Comments
     
     
     为什么有些题能看见代码有些题看不见？
     
      * 问答
      * 34 views
      * deng_wo_ni_xi @ 3 weeks ago

 9.  1
     Comments
     
     
     关于HYDROOJ 2024年
     
      * 问答
      * 61 views
      * flyadmin @ 1 week ago

 10. 4
     Comments
     
     
     【求助】请问为什么经过使用HYDRO框变黑了？
     
      * Hydro
      * 49 views
      * cjh0201 @ 1 day ago

 11. 1
     Comments
     
     
     刚来HYDRO，请问为什么HYDRO的RP时高时低？
     
      * Hydro
      * 61 views
      * XetrozCAI @ 1 month ago

 12. 1
     Comments
     
     
     问一下 HYDROOJ有没有啥授权QQ登录的插件
     
      * 问答
      * 57 views
      * 宇宙超级无敌大帅哥 @ 4 weeks ago

 13. 3
     Comments
     
     
     状态显示不准
     
      * Hydro
      * 44 views
      * 纪鸣宇（Leo） @ 1 month ago

 14. 0
     Comments
     
     
     求解站外题
     
      * 问答
      * 49 views
      * mcr130102 @ 1 month ago

 15. 3
     Comments
     
     
     洛谷天天502是怎麽回事
     
      * 分享
      * 92 views
      * 9egg @ 1 month ago

 16. 2
     Comments
     
     
     怎么改名？
     
      * 问答
      * 75 views
      * 刘奕含 @ 1 month ago

 17. 20
     Comments
     
     
     祝贺 HYDROOJ 注册用户数量破 30000！
     
      * Hydro
      * 126 views
      * admin @ 1 month ago

 18. 1
     Comments
     
     
     [工业时代1] 炼制合金
     
      * 分享
      * 66 views
      * 123cat @ 2 months ago

 19. 1
     Comments
     
     
     怎么从GITHUB登陆?
     
      * 问答
      * 60 views
      * clzzw666 @ 1 month ago

 20. 1
     Comments
     
     
     怎么自己从别人的域永久退出？
     
      * Hydro
      * 129 views
      * 陈昱豪 @ 2 months ago

 * More >


RECENT PROBLEMS

SFCR2C  「SFCOI-2」愤怒 6 months ago

SFCR2D  「SFCOI-2」街舞 6 months ago

SFCR2B  「SFCOI-2」幽灵 6 months ago

SFCR2A  「SFCOI-2」难过 6 months ago

SFCR1D  「SFCOI-1」猜数 8 months ago

SFCR1C  「SFCOI-1」颜色 8 months ago

SFCR1B  「SFCOI-1」行走 8 months ago

SFCR1A  「SFCOI-1」电梯 8 months ago

NOI20222C  「NOI2022」二次整数规划问题 1 year ago

NOI20222B  「NOI2022」冒泡排序 1 year ago


DISCUSSION NODES


 * 泛
   
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   2.  C
   3.  C++
   4.  Go
   5.  Java
   6.  PHP
   7.  Python
   8.  Rust
   9.  保送
   10. 数学
   11. 编程


 * HYDRO
   
   1. Hydro
   2. 团队
   3. 建议
   4. 月赛


 * 探索
   
   1. 分享
   2. 问答
   3. 题解


RECOMMENDED


 * CHINESE
   
   1. LibreOJ
   2. 洛谷
   3. UOJ
   4. CometOJ
   5. Vijos


 * ENGLISH
   
   1. Codeforces
   2. AtCoder
   3. CodeChef
   4. SPOJ
   5. TopCoder
   6. OnlineJudge


 * TOOLS
   
   1. OIerDb


STATUS

 * Judging Queue
 * Service Status


DEVELOPMENT

 * Open Source
 * API


SUPPORT

 * Help
   
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 3. Privacy
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 5. Copyright Complaint
 6. Language
 7. Legacy mode
 8. Theme

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 3. Worker 1 in 137ms
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