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Important announcements

Recent contest announcements

AtCoder Regular Contest 199 (Div. 1) Announcement

posted:
We will hold <a href="https://atcoder.jp/contests/arc199">AtCoder Regular Contest 199 (Div. 1)</a>. - Contest URL: https://atcoder.jp/contests/arc199 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250601T2100&p1=248 - Duration: 150 minutes - Number of Tasks: 4 - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/toam" class="username"><span class="user-orange">toam</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/sotanishy" class="username"><span class="user-orange">sotanishy</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a> - Rated range: 1600 ~ 2999 The point values will be 800-800-900-1000. We are looking forward to your participation!
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AtCoder Beginner Contest 408 Announcement

posted:
We will hold <a href="https://atcoder.jp/contests/abc408">AtCoder Beginner Contest 408</a>. - Contest URL: https://atcoder.jp/contests/abc408 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250531T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/MtSaka" class="username"><span class="user-orange">MtSaka</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/sounansya" class="username"><span class="user-orange">sounansya</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/yuto1115" class="username"><span class="user-red">yuto1115</span></a> - Rated range: ~ 1999 - The point values: 150-150-300-400-450-500-625 We are looking forward to your participation!
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MC Digital Programming Contest 2025 (AtCoder Heuristic Contest 048) Announcement

posted:
We will hold <a href="https://atcoder.jp/contests/ahc048">MC Digital Programming Contest 2025 (AtCoder Heuristic Contest 048)</a>. - Contest URL: https://atcoder.jp/contests/ahc048 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250530T1900&p1=248 - Duration: 10 days - Writer: <a href="/users/wata_admin" class="username"><span class="user-unrated">wata_admin</span></a> - Rated range: All (Heuristic Rating) This contest is one of the qualifying contests for <a href="https://atcoder.jp/posts/1394">AWTF 2026</a>. We are looking forward to your participation!
last update:

AtCoder Regular Contest 198 (Div. 2) Announcement

posted:
We will hold <a href="https://atcoder.jp/contests/arc198">AtCoder Regular Contest 198 (Div. 2)</a>. - Contest URL: https://atcoder.jp/contests/arc198 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250525T2100&p1=248 - Duration: 120 minutes - Number of Tasks: 5 - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/PCTprobability" class="username"><span class="user-red">PCTprobability</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a> - Rated range: 1200 ~ 2399 The point values will be 300-500-700-700-900. We are looking forward to your participation!
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AtCoder Beginner Contest 407 Announcement

posted:
We will hold <a href="https://atcoder.jp/contests/abc407">AtCoder Beginner Contest 407</a>. - Contest URL: https://atcoder.jp/contests/abc407 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250524T2100&p1=248 - Duration: 100 minutes - Writer: <a href="/users/sheyasutaka" class="username"><span class="user-red">sheyasutaka</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/MMNMM" class="username"><span class="user-orange">MMNMM</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a> - Rated range: ~ 1999 - The point values: 150-250-300-425-450-550-600 We are looking forward to your participation!
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