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Start Time | Contest Name |
---|---|
◉ RECRUIT Nihonbashi Half Marathon 2025 Winter(AtCoder Heuristic Contest 043) |
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Important announcements
- [2025-01-17] AHC's New Rating System
- [2025-01-15] Tentative 2025 AHC Schedule
- [2025-01-15] Announcement of AtCoder World Tour Finals 2026
- [2024-12-16] Information
- [2024-12-06] Regarding Rule Changes in ABC and ARC Due to Technological Advancement of Generative AI
- [2024-12-06] Rule Changes Regarding ARC's Division System
- [2024-12-04] Password Management for Your AtCoder Account
- [2024-12-03] Announcement Regarding ARC's Division System
- [2024-08-08] Restructuring of contests
Recent contest announcements
- [2025-02-14] New AtCoder Beginner Contest 393 Announcement
- [2025-02-14] New RECRUIT Nihonbashi Half Marathon 2025 Winter(AtCoder Heuristic Contest 043) Announcement
- [2025-02-08] AtCoder Regular Contest 192 (Div. 2) Announcement
- [2025-02-07] Japan Registry Services (JPRS) Programming Contest 2025#1 (AtCoder Beginner Contest 392) Announcement
- [2025-01-31] AtCoder Beginner Contest 391 Announcement
We will hold <a href="https://atcoder.jp/contests/abc393">AtCoder Beginner Contest 393</a>.
- Contest URL: https://atcoder.jp/contests/abc393
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250215T2100&p1=248
- Duration: 100 minutes
- Writer: <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/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/yuto1115" class="username"><span class="user-orange">yuto1115</span></a>, <img src="//img.atcoder.jp/assets/user/user-yellow-4.png" class="user-rating-stage-m"><a href="/users/ynymxiaolongbao" class="username"><span class="user-yellow">ynymxiaolongbao</span></a>
- Tester: <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>
- Rated range: ~ 1999
- The point values: 100-200-300-425-475-500-675
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/ahc043">RECRUIT Nihonbashi Half Marathon 2025 Winter(AtCoder Heuristic Contest 043)</a>.
- Contest URL: https://atcoder.jp/contests/ahc043
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250214T1900&p1=248
- Duration: 10 days
- Staff: <a href="https://atcoder.jp/users/cozy_sauna?contestType=heuristic" class="username user-yellow"><span class="user-yellow">cozy_sauna</span></a>, <a href="https://atcoder.jp/users/dpforest" class="username user-blue"><span class="user-blue">dpforest</span></a>, <a href="https://atcoder.jp/users/eha" class="username user-yellow"><span class="user-yellow">eha</span></a>, <a href="https://atcoder.jp/users/FLOPPY_30" class="username user-blue"><span class="user-blue">FLOPPY_30</span></a>, <a href="https://atcoder.jp/users/frnfnts" class="username user-cyan"><span class="user-cyan">frnfnts</span></a>, <a href="https://atcoder.jp/users/hamray" class="username user-blue"><span class="user-blue">hamray</span></a>, <a href="https://atcoder.jp/users/hashiryo" class="username user-yellow"><span class="user-yellow">hashiryo</span></a>, <a href="https://atcoder.jp/users/japlj" class="username user-red"><span class="user-red">japlj</span></a>, <a href="https://atcoder.jp/users/kanra824" class="username user-cyan"><span class="user-cyan">kanra824</span></a>, <a href="https://atcoder.jp/users/kys" class="username user-blue"><span class="user-blue">kys</span></a>, <a href="https://atcoder.jp/users/n_knuu" class="username user-blue"><span class="user-blue">n_knuu</span></a>, <a href="https://atcoder.jp/users/roiti" class="username user-blue"><span class="user-blue">roiti</span></a>, <a href="https://atcoder.jp/users/samasama" class="username user-green"><span class="user-green">samasama</span></a>, <a href="https://atcoder.jp/users/shichinomiya" class="username user-cyan"><span class="user-cyan">shichinomiya</span></a>, <a href="https://atcoder.jp/users/shiratty8" class="username user-yellow"><span class="user-yellow">shiratty8</span></a>, <a href="https://atcoder.jp/users/smiken" class="username user-orange"><span class="user-orange">smiken</span></a>, <a href="https://atcoder.jp/users/sugim48" class="username"><span style="color:#C06000;">sugim48</span></a>, <a href="https://atcoder.jp/users/suzume?contestType=heuristic" class="username user-orange"><span class="user-orange">suzume</span></a>, <a href="https://atcoder.jp/users/tomerun?contestType=heuristic" class="username user-red"><span class="user-red">tomerun</span></a>, <a href="https://atcoder.jp/users/yupiteru?contestType=heuristic" class="username user-yellow"><span class="user-yellow">yupiteru</span></a>, <a href="https://atcoder.jp/users/yusk" class="username user-cyan"><span class="user-cyan">yusk</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!
We will hold <a href="https://atcoder.jp/contests/arc192">AtCoder Regular Contest 192 (Div. 2)</a>.
- Contest URL: https://atcoder.jp/contests/arc192
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250209T2100&p1=248
- Duration: 120 minutes
- Number of Tasks: 5
- Writer: <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/hirayuu_At" class="username"><span class="user-orange">hirayuu_At</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 400-600-600-600-800.
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc392">Japan Registry Services (JPRS) Programming Contest 2025#1 (AtCoder Beginner Contest 392)</a>.
- Contest URL: https://atcoder.jp/contests/abc392
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250208T2100&p1=248
- Duration: 100 minutes
- Writer: <img src="//img.atcoder.jp/assets/user/user-orange-2.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>, <img src="//img.atcoder.jp/assets/user/user-yellow-4.png" class="user-rating-stage-m"><a href="/users/ynymxiaolongbao" class="username"><span class="user-yellow">ynymxiaolongbao</span></a>
- Tester: <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/nok0" class="username"><span class="user-orange">nok0</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/MMNMM" class="username"><span class="user-orange">MMNMM</span></a>
- Rated range: ~ 1999
- The point values: 100-200-300-400-450-500-600
We are looking forward to your participation!
We will hold <a href="https://atcoder.jp/contests/abc391">AtCoder Beginner Contest 391</a>.
- Contest URL: https://atcoder.jp/contests/abc391
- Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250201T2100&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/sotanishy" class="username"><span class="user-orange">sotanishy</span></a>, <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>, <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a>
- Tester: <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/mechanicalpenciI" class="username"><span class="user-orange">mechanicalpenciI</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/cn449" class="username"><span class="user-orange">cn449</span></a>
- Rated range: ~ 1999
- The point values: 100-200-300-400-450-500-600
We are looking forward to your participation!