Contest
Permanent Contests
| Contest Name |
|---|
| ◉ practice contest |
| ◉ AtCoder Library Practice Contest |
Upcoming Contests
Recent Contests
[How to get an account / participate in contests?](http://atcoder.jp/posts/2)
[AtCoder's Contest Format](http://atcoder.jp/posts/1)
[AtCoder's Testcases](https://www.dropbox.com/sh/nx3tnilzqz7df8a/AAAYlTq2tiEHl5hsESw6-yfLa?dl=0) - [AtCoder's Rating System](https://www.dropbox.com/sh/zpgcogxmmu84rr8/AADcw6o7M9tJFDgtpqEQQ46Ua?dl=0) - [AtCoder Race Ranking](https://img.atcoder.jp/file/GP30.html)
We will hold <a href="https://atcoder.jp/contests/arc110">AtCoder Regular Contest 110（Sponsored by KAJIMA CORPORATION）</a>.
- Contest URL: https://atcoder.jp/contests/arc110
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20201205T2100&p1=248
- Duration: 120 minutes
- Number of Tasks: 6
- Writer: <a href="/users/gazelle" class="username"><span class="user-orange">gazelle</span></a>
- Rated range: ~ 2799
The point values will be 300-400-500-600-800-900.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/arc109">AtCoder Regular Contest 109</a>.
- Contest URL: https://atcoder.jp/contests/arc109
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20201128T2100&p1=248
- Duration: 120 minutes
- Number of Tasks: 6
- Writer: <a href="/users/nuip" class="username"><span class="user-red">nuip</span></a>
- Rated range: ~ 2799
The point values will be 300-400-500-600-700-900.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc184">AtCoder Beginner Contest 184</a>.
- Contest URL: https://atcoder.jp/contests/abc184
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20201122T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 6
- Writer: <a href="/users/beet" class="username"><span class="user-red">beet</span></a>, <a href="/users/evima" class="username"><span class="user-unrated">evima</span></a>, <a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <a href="/users/tatyam" class="username"><span class="user-orange">tatyam</span></a>, <a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a>
- Rated range: ~ 1999
The point values will be 100-200-300-400-500-600.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/arc108">AtCoder Regular Contest 108</a>.
- Contest URL: https://atcoder.jp/contests/arc108
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20201121T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 6
- Writer: <a href="/users/camypaper" class="username"><span class="user-orange">camypaper</span></a>
- Rated range: ~ 2799
The point values will be 300-400-500-600-700-900.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc183">AtCoder Beginner Contest 183</a>.
- Contest URL: https://atcoder.jp/contests/abc183
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20201115T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 6
- Writer: <a href="/users/beet" class="username"><span class="user-red">beet</span></a>, <a href="/users/Kmcode" class="username"><span class="user-orange">Kmcode</span></a>, <a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/tozangezan" class="username"><span class="user-red">tozangezan</span></a>
- Rated range: ~ 1999
The point values will be 100-200-300-400-500-600.
We are looking forward to your participation!