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AtCoder Regular Contest 118 Announcement

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**Please note the unusual start time**. We will hold <a href="https://atcoder.jp/contests/arc118">AtCoder Regular Contest 118</a>. - Contest URL: https://atcoder.jp/contests/arc118 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210509T2205&p1=248 - Duration: 120 minutes - Number of Tasks: 6 - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a> - Tester: <a href="/users/tempura0224" class="username"><span class="user-red">tempura0224</span></a>, <a href="/users/yamunaku" class="username"><span class="user-orange">yamunaku</span></a> - Rated range: ~ 2799 The point values will be 300-400-500-700-800-1000. We are looking forward to your participation!

KYOCERA Programming Contest 2021(AtCoder Beginner Contest 200) Announcement

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We will hold <a href="https://atcoder.jp/contests/abc200">KYOCERA Programming Contest 2021(AtCoder Beginner Contest 200)</a>. - Contest URL: https://atcoder.jp/contests/abc200 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210508T2100&p1=248 - Duration: 100 minutes - Number of Tasks: 6 - Writer: <a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a> - Rated range: ~ 1999 The point values will be 100,200,300,400,500,600. We are looking forward to your participation!

ZONe Energy Programming Contest Announcement

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We will hold <a href="https://atcoder.jp/contests/zone2021">ZONe Energy Programming Contest</a>. - Contest URL: https://atcoder.jp/contests/zone2021 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210501T2100&p1=248 - Duration: 100 minutes - Number of Tasks: 6 - Writer: <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/tatyam" class="username"><span class="user-red">tatyam</span></a> - Rated range: ~ 1999 The point values will be 100,200,<span style="color:red">400</span>,<span style="color:red">300</span>,500,600. #### Attention - This contest is equivalent to AtCoder Beginner Contest. - Please pay attention to the point values bellow. Problem C is <span style="color:red;">400</span> points. We are looking forward to your participation!

AtCoder Heuristic Contest 002 Announcement

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We will hold <a href="https://atcoder.jp/contests/ahc002">AtCoder Heuristic Contest 002</a>. - Contest URL: https://atcoder.jp/contests/ahc002 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210425T1900&p1=248 - Duration: 240 minutes - Number of Tasks: 1 - Writer: <a href="/users/wata" class="username"><span class="user-yellow">wata</span></a> - Rated range: All (Heuristic Rating) The goal of AHC is to create a better solution to a problem for which it is difficult to find the optimal solution. We are looking forward to your participation!

AtCoder Beginner Contest 199(Sponsored by Panasonic) Announcement

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We will hold <a href="https://atcoder.jp/contests/abc199">AtCoder Beginner Contest 199(Sponsored by Panasonic)</a>. - Contest URL: https://atcoder.jp/contests/abc199 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210424T2100&p1=248 - Duration: 100 minutes - Number of Tasks: 6 - Writer: <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/QCFium" class="username"><span class="user-red">QCFium</span></a>, <a href="/users/satashun" class="username"><span class="user-orange">satashun</span></a>, <a href="/users/ynymxiaolongbao" class="username"><span class="user-orange">ynymxiaolongbao</span></a> - Rated range: ~ 1999 The point values will be 100-200-300-400-500-600. We are looking forward to your participation!

AtCoder Regular Contest 117 Announcement

posted:
We will hold <a href="https://atcoder.jp/contests/arc117">AtCoder Regular Contest 117</a>. - Contest URL: https://atcoder.jp/contests/arc117 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210418T2100&p1=248 - Duration: 120 minutes - Number of Tasks: 6 - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/E869120" class="username"><span class="user-red">E869120</span></a>, <a href="/users/square1001" class="username"><span class="user-orange">square1001</span></a> - Tester: <a href="/users/tempura0224" class="username"><span class="user-red">tempura0224</span></a> - Rated range: ~ 2799 The point values will be 200-400-600-600-900-900. We are looking forward to your participation!

Japanese Student Championship 2021 Announcement

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We will hold <a href="https://atcoder.jp/contests/jsc2021">Japanese Student Championship 2021</a>. **Everyone is welcome to participate. Please note that this contest will be held at a different time than usual.** - Contest URL: https://atcoder.jp/contests/jsc2021 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210417T1610&p1=248 - Duration: 120 minutes - Number of Tasks: 8 - Writer: <a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <a href="/users/QCFium" class="username"><span class="user-red">QCFium</span></a>, <a href="/users/tatyam" class="username"><span class="user-red">tatyam</span></a> - Rated range: ~ 1999 The point values will be 100-200-300-400-500-600-600-600. We are looking forward to your participation!

AtCoder Beginner Contest 198 Announcement

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We will hold <a href="https://atcoder.jp/contests/abc198">AtCoder Beginner Contest 198</a>. - Contest URL: https://atcoder.jp/contests/abc198 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210411T2100&p1=248 - Duration: 100 minutes - Number of Tasks: 6 - Writer: <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>, <a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a>, <a href="/users/tatyam" class="username"><span class="user-red">tatyam</span></a>, <a href="/users/ynymxiaolongbao" class="username"><span class="user-orange">ynymxiaolongbao</span></a> - Rated range: ~ 1999 The point values will be 100-200-300-400-500-600. We are looking forward to your participation!

AtCoder Grand Contest 053 Announcement

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We will hold <a href="https://atcoder.jp/contests/agc053">AtCoder Grand Contest 053</a>. This contest counts for GP30 scores. - Contest URL: https://atcoder.jp/contests/agc053 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210410T2100&p1=248 - Duration: 180 minutes - Number of Tasks: 6 - Writer: <img src="//img.atcoder.jp/assets/icon/crown_silver.png"> <a href="/users/yutaka1999" class="username"><span class="user-red">yutaka1999</span></a> - Rated range: 1200 ~ The point values will be 400-700-900-1000-1400-2400. We are looking forward to your participation!

Account Suspension for Unauthorized Users

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It is a violation of AtCoder's Terms of Service to have more than one account that can participate in a contest, unless you have special permission to do so. It is also cheating to share answers during the contest. Both of these actions are subject to account suspension, and we have already suspended some accounts. Currently, we are only suspending accounts of malicious users. If you have more than one account, please cancel your membership as soon as possible. Please continue to enjoy AtCoder! Thanks!