Contest

Active Contests

Start Time Contest Name
2012/06/25 00:00 practice contest

Upcoming Contests

Start Time Contest Name
2017/09/23 21:00 CODE FESTIVAL 2017 qual A

Recent Contests

Start Time Contest Name
2017/09/16 21:00 AtCoder Regular Contest 083
2017/09/16 21:00 AtCoder Beginner Contest 074
2017/09/09 21:00 AtCoder Beginner Contest 073
2017/09/02 21:00 AtCoder Regular Contest 082
2017/09/02 21:00 AtCoder Beginner Contest 072
2017/08/26 21:00 AtCoder Grand Contest 019
2017/08/20 21:00 AtCoder Regular Contest 081
2017/08/20 21:00 AtCoder Beginner Contest 071
2017/08/12 21:00 AtCoder Beginner Contest 070
2017/08/06 21:00 AtCoder Regular Contest 080

view all / Calendar

Ranking

User Rating
1 tourist 4131
2 Um_nik 3732
3 w4yneb0t 3710
4 Petr 3645
5 LHiC 3579
6 semiexp 3428
7 endagorion 3414
8 yutaka1999 3385
9 cospleermusora 3378
10 yosupo 3372

view all / Hall of Fame

<a href="https://r.recruit-jinji.jp/code_fes/us/" target="_blank"><img src="https://s3-ap-northeast-1.amazonaws.com/img.atcoder.jp/banner/code_festival_2017_eng.png" alt="[PR] CodeFestival 2017" class="img-responsive center-block"></a>

Information

[How to get an account / participate in contests?](http://atcoder.jp/post/2) [AtCoder's Contest Format](http://atcoder.jp/post/1)

AtCoder Regular Contest 083 / Beginner Contest 074 Announcement

posted:
Two contests [AtCoder Regular Contest 083](https://arc083.contest.atcoder.jp/) and [AtCoder Beginner Contest 074](https://abc074.contest.atcoder.jp/) will be held at the same time. You can participate in whichever contest you want. (However, you can't register to both competitions.) The last two tasks in ABC are the same as the first two tasks in ARC. - Time： September 16th (Saturday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20170916T2100&p1=248) - Duration: 100 minutes - Number of Tasks: 4 - writer：<a href="/user/wo01" class="username"><span class="user-orange">wo01</span></a> - Rating： 0-2799 for ARC, 0-1199 for ABC The point values will be ABC: 100 - 200 - 300 - 500 ARC: 300 - 500 - 700 - 1200 We are looking forward to your participation!
last update:

AtCoder Beginner Contest 073 Announcement

posted:
[AtCoder Beginner Contest 073](https://beta.atcoder.jp/contests/abc073) will be held. - Time：September 9th (Saturday), 21:00 JST - Duration: 100 minutes - Number of Tasks: 4 - writer： <a href="https://atcoder.jp/user/namonakiacc"><span class="user-black">namonakiacc</span></a> - Rating： 0-1199 - The point values are: 100 - 200 - 300 - 400 We are looking forward to your participation!
last update:

AtCoder Regular Contest 082 / Beginner Contest 072 Announcement

posted:
Two contests [AtCoder Regular Contest 082](https://arc082.contest.atcoder.jp/) and [AtCoder Beginner Contest 072](https://abc072.contest.atcoder.jp/) will be held at the same time. You can participate in whichever contest you want. (However, you can't register to both competitions.) The last two tasks in ABC are the same as the first two tasks in ARC. - Time： September 2nd (Saturday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20170902T2100&p1=248) - Duration: 100 minutes - Number of Tasks: 4 - writer：<a href="/user/sigma425" class="username"><span class="user-red">sigma425</span></a> - Rating： 0-2799 for ARC, 0-1199 for ABC The point values will be ABC: 100 - 200 - 300 - 400 ARC: 300 - 400 - 700 - 700 We are looking forward to your participation!
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AtCoder Grand Contest 019 Announcement

posted:
[AtCoder Grand Contest 019](https://agc019.contest.atcoder.jp/) will be held on Saturday. - Time: August 26th (Saturday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20170826T2100&p1=248) - Duration: <font color="#FF0000">150 minutes</font> - Number of Tasks: 6 - Writer: <img src="http://atcoder.jp/public/img/icon/crown4000.gif"></img> <a href="/user/tourist" class="username"><span class="user-red">tourist</span></a> - Rated: Yes We are looking forward to your participation! The point values will be 300 - 500 - 900 - 1000 - 1700 (1200) - 2000 (1500).
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AtCoder Regular Contest 081 / Beginner Contest 071 Announcement

posted:
Two contests [AtCoder Regular Contest 081](https://arc081.contest.atcoder.jp/) and [AtCoder Beginner Contest 071](https://abc071.contest.atcoder.jp/) will be held at the same time. You can participate in whichever contest you want. (However, you can't register to both competitions.) The last two tasks in ABC are the same as the first two tasks in ARC. - Time： August 20th (Sunday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20170820T2100&p1=248) - Duration: 100 minutes - Number of Tasks: 4 - writer：<a href="/user/semiexp" class="username"><span class="user-red">semiexp</span></a> - Rating： 0-2799 for ARC, 0-1199 for ABC The point values will be ABC: 100 - 200 - 300 - 400 ARC: 300 - 400 - 600 - 700 We are looking forward to your participation!
last update: