AtCoder Petrozavodsk Contest 001 Announcement

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[AtCoder Petrozavodsk Contest 001](https://apc001.contest.atcoder.jp/) will be held on Saturday. This contest is similar to AGC (individual, rated-for-all contest). The only difference is that the duration is significantly longer. Note that the start time of the contest is unusual. This contest counts for AtCoder Race Ranking. The contest is based on one of the contests in Petrozavodsk camp. If you are a participant of the camp, please do not participate in this contest. - Time: February 3rd (Saturday), [23:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20180203T2300&p1=248) - Duration: <font color="#FF0000">300 minutes</font> - Number of Tasks: 10 - Writer: <a href="/user/yosupo" class="username"><span class="user-red">yosupo</span></a>, <a href="/user/sugim48" class="username"><span class="user-red">sugim48</span></a>, <a href="/user/sigma425" class="username"><span class="user-red">sigma425</span></a> - Rated: Yes We are looking forward to your participation! The point values will be 100 - 300 - 500 - 600 - 900 - 1000 - 2000 - 2000 -2000 - 2100.

AtCoder Regular Contest 090 / Beginner Contest 087 Announcement

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Two contests [AtCoder Regular Contest 090](https://arc090.contest.atcoder.jp/) and [AtCoder Beginner Contest 087](https://abc087.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: January 28th (Sunday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20180128T2100&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 - 400 ARC: 300 - 400 - 700 - 900 We are looking forward to your participation!

AtCoder Regular Contest 089 / Beginner Contest 086 Announcement

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Two contests [AtCoder Regular Contest 089](https://arc089.contest.atcoder.jp/) and [AtCoder Beginner Contest 086](https://abc086.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: January 21st (Sunday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20180121T2100&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 - 500 ARC: 300 - 500 - 900 - 1100 We are looking forward to your participation!

AtCoder Grand Contest 020 Announcement

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[AtCoder Grand Contest 020](https://agc020.contest.atcoder.jp/) will be held on Sunday. This is the first contest of 2018 counted towards AtCoder Race Ranking. If you get into top 30 in this contest, you will get GP30 scores. - Time: January 14th (Sunday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20180114T2100&p1=248) - Duration: <font color="#FF0000">130 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 - 700 - 1100 (500) - 1400 - 2100.

AtCoder Beginner Contest 085 announcement

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[AtCoder Beginner Contest 085](https://beta.atcoder.jp/contests/abc085) will be held. - Time:January 7th (Sunday), 21:00 JST - Duration: 100 minutes - Number of Tasks: 4 - writer: <a href="https://atcoder.jp/user/evima"><span class="user-black">evima</span></a> - Rating: 0-1199 - The point values are: 100 - 200 - 300 - 400 We are looking forward to your participation!