We will hold <a href="https://atcoder.jp/contests/arc213">AtCoder Regular Contest 213 (Div. 1)</a>. - Contest URL: https://atcoder.jp/contests/arc213 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260125T2100&p1=248 - Duration: 150 minutes - Number of Tasks: 4 - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/leaf1415" class="username"><span class="user-orange">leaf1415</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/vwxyz" class="username"><span class="user-orange">vwxyz</span></a>, <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_silver.png"> <a href="/users/potato167" class="username"><span class="user-red">potato167</span></a> - Tester: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a>, <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> - Rated range: 1600 ~ 2999 The point values will be 600-800-900-1100. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc442">JPRS Programming Contest 2026#1 (AtCoder Beginner Contest 442)</a>. - Contest URL: https://atcoder.jp/contests/abc442 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260124T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/cn449" class="username"><span class="user-red">cn449</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>, <img src="//img.atcoder.jp/assets/user/user-yellow-3.png" class="user-rating-stage-m"><a href="/users/ynymxiaolongbao" class="username"><span class="user-yellow">ynymxiaolongbao</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/chokudai" class="username"><span class="user-red">chokudai</span></a> - Tester: <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-orange-3.png" class="user-rating-stage-m"><a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</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/abc441">AtCoder Beginner Contest 441 (Promotion of Engineer Guild Fes)</a>. - Contest URL: https://atcoder.jp/contests/abc441 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260117T2100&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/mechanicalpenciI" class="username"><span class="user-orange">mechanicalpenciI</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>, <img src="//img.atcoder.jp/assets/user/user-yellow-3.png" class="user-rating-stage-m"><a href="/users/ynymxiaolongbao" class="username"><span class="user-yellow">ynymxiaolongbao</span></a>, <a href="/users/evima" class="username"><span class="user-unrated">evima</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/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a> - Rated range: ~ 1999 - The point values: 100-200-300-400-450-500-575 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/arc212">AtCoder Regular Contest 212 (Div. 2)</a>. - Contest URL: https://atcoder.jp/contests/arc212 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260111T2100&p1=248 - Duration: 120 minutes - Number of Tasks: 6 - Writer: <img src="//img.atcoder.jp/assets/user/user-yellow-1.png" class="user-rating-stage-m"><a href="/users/milkcoffee" class="username"><span class="user-yellow">milkcoffee</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 400-500-600-600-700-700. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc440">AtCoder Beginner Contest 440</a>. - Contest URL: https://atcoder.jp/contests/abc440 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260110T2100&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/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-yellow-4.png" class="user-rating-stage-m"><a href="/users/sounansya" class="username"><span class="user-yellow">sounansya</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/cn449" class="username"><span class="user-red">cn449</span></a> - Rated range: ~ 1999 - The point values: 100-200-300-400-450-550-600 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/ahc059">AtCoder Heuristic Contest 059</a>. - Contest URL: https://atcoder.jp/contests/ahc059 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260110T1500&p1=248 - Duration: 4 hours - 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 AWTF 2027. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc439">AtCoder Beginner Contest 439</a>. - Contest URL: https://atcoder.jp/contests/abc439 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20260103T2100&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/physics0523" class="username"><span class="user-orange">physics0523</span></a>, <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-1.png" class="user-rating-stage-m"><a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <a href="/users/blackyuki" class="username"><span class="user-red">blackyuki</span></a> - Tester: <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>, <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: 100-200-300-425-450-525-650 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/agc076">AtCoder Grand Contest 076</a>. This contest counts for GP30 scores. - Contest URL: https://atcoder.jp/contests/agc076 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251228T2100&p1=248 - Duration: 180 minutes - Number of Tasks: 5 - Writer: <a href="/users/maroonrk" class="username"><span style="color:#869120;">maroonrk</span></a> - Tester: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/IH19980412" class="username"><span class="user-red">IH19980412</span></a> - Rated range: 2000 ~ The point values will be 700-1100-1200-1400-1400. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc438">AtCoder Beginner Contest 438</a>. - Contest URL: https://atcoder.jp/contests/abc438 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251227T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/cn449" class="username"><span class="user-red">cn449</span></a>, <img src="//img.atcoder.jp/assets/user/user-yellow-4.png" class="user-rating-stage-m"><a href="/users/sounansya" class="username"><span class="user-yellow">sounansya</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a>, <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> - Rated range: ~ 1999 - The point values: 100-200-300-400-475-525-575 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/agc075">AtCoder Grand Contest 075</a>. This contest counts for GP30 scores. - Contest URL: https://atcoder.jp/contests/agc075 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251221T2100&p1=248 - Duration: 180 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/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/IH19980412" class="username"><span class="user-red">IH19980412</span></a> - Rated range: 2000 ~ The point values will be 600-800-1200-1200-1600. We are looking forward to your participation!