Contest
Permanent Contests
| Contest Name |
|---|
| ◉ practice contest |
| ◉ AtCoder Library Practice Contest |
Upcoming Contests
Recent Contests
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[AtCoder's Contest Format](http://atcoder.jp/posts/1)
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Dear users,
We are going to suspend our service on the following schedule for maintenance.
【Schedule】
- Start time: <a href="https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220714T00&p1=248">Wed, July 13, 2022 15:00(UTC)</a>
- End time: <a href="https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220714T04&p1=248">Wed, July 13, 2022 19:00(UTC)</a>
【Affected Resource】
- [https://atcoder.jp](https://atcoder.jp)
We apologize for the inconvenience to our users. Thank you for your understanding.
NS Solutions Corporation Programming Contest 2022（AtCoder Beginner Contest 257） Announcement
posted:We will hold <a href="https://atcoder.jp/contests/abc257">NS Solutions Corporation Programming Contest 2022（AtCoder Beginner Contest 257）</a>.
- Contest URL: https://atcoder.jp/contests/abc257
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20220625T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 8
- Writer: <a href="/users/mechanicalpenciI" class="username"><span class="user-orange">mechanicalpenciI</span></a>, <a href="/users/nok0" class="username"><span class="user-orange">nok0</span></a>, <a href="/users/m_99" class="username"><span class="user-orange">m_99</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/chokudai" class="username"><span class="user-red">chokudai</span></a>, <a href="/users/leaf1415" class="username"><span class="user-orange">leaf1415</span></a>
- Rated range: ~ 1999
The point values will be 100-200-300-400-500-500-600-600.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/arc142">AtCoder Regular Contest 142</a>.
- Contest URL: https://atcoder.jp/contests/arc142
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20220619T2100&p1=248
- Duration: 120 minutes
- Number of Tasks: 6
- Writer: <a href="/users/m_99" class="username"><span class="user-orange">m_99</span></a>
- Tester: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a>, <a href="/users/satashun" class="username"><span class="user-red">satashun</span></a>
- Rated range: ~ 2799
The point values will be 300-400-500-800-900-1000.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc256">Tokio Marine & Nichido Fire Insurance Programming Contest 2022（AtCoder Beginner Contest 256)</a>.
- Contest URL: https://atcoder.jp/contests/abc256
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20220618T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 8
- Writer: <a href="/users/Nyaan" class="username"><span class="user-red">Nyaan</span></a>, <a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <a href="/users/m_99" class="username"><span class="user-orange">m_99</span></a>, <a href="/users/leaf1415" class="username"><span class="user-orange">leaf1415</span></a>
- Tester: <a href="/users/KoD" class="username"><span class="user-red">KoD</span></a>, <a href="/users/PCTprobability" class="username"><span class="user-orange">PCTprobability</span></a>
- Rated range: ~ 1999
The point values will be 100-200-300-400-500-500-600-600.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc255">Aising Programming Contest 2022（AtCoder Beginner Contest 255）</a>.
- Contest URL: https://atcoder.jp/contests/abc255
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20220611T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 8
- Writer: <a href="/users/leaf1415" class="username"><span class="user-orange">leaf1415</span></a>, <a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a>, <a href="/users/m_99" class="username"><span class="user-orange">m_99</span></a>, <a href="/users/nok0" class="username"><span class="user-orange">nok0</span></a>
- Tester: <a href="/users/mechanicalpenciI" class="username"><span class="user-orange">mechanicalpenciI</span></a>, <a href="/users/nok0" class="username"><span class="user-orange">nok0</span></a>
- Rated range: ~ 1999
The point values will be 100-200-300-400-500-500-600-600.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc254">AtCoder Beginner Contest 254</a>.
- Contest URL: https://atcoder.jp/contests/abc254
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20220604T2100&p1=248
- Duration: 100 minutes
- Number of Tasks: 8
- Writer: <a href="/users/PCTprobability" class="username"><span class="user-orange">PCTprobability</span></a>, <a href="/users/m_99" class="username"><span class="user-orange">m_99</span></a>
- Tester: <a href="/users/Nyaan" class="username"><span class="user-red">Nyaan</span></a>, <a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>
- Rated range: ~ 1999
The point values will be 100-200-300-400-500-500-600-600.
We are looking forward to your participation!