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!

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!

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!

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!

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!

We will hold <a href="https://atcoder.jp/contests/ahc047">Toyota Programming Contest 2025#2（AtCoder Heuristic Contest 047）</a>. - Contest URL: https://atcoder.jp/contests/ahc047 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250518T1900&p1=248 - Duration: 4 hours - Writer: <img src="//img.atcoder.jp/assets/icon/crown_silver.png"> <a href="/users/chokudai" class="username"><span class="user-red">chokudai</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/abc406">Panasonic Programming Contest 2025（AtCoder Beginner Contest 406）</a>. - Contest URL: https://atcoder.jp/contests/abc406 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250517T2100&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-4.png" class="user-rating-stage-m"><a href="/users/cn449" class="username"><span class="user-orange">cn449</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>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</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-2.png" class="user-rating-stage-m"><a href="/users/toam" class="username"><span class="user-orange">toam</span></a> - Rated range: ~ 1999 - The point values: 100-200-350-400-450-500-625 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc405">AtCoder Beginner Contest 405</a>. - Contest URL: https://atcoder.jp/contests/abc405 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250510T2100&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/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-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/sotanishy" class="username"><span class="user-orange">sotanishy</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: 100-200-300-400-475-525-625 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/arc197">AtCoder Regular Contest 197 (Div. 2)</a>. - Contest URL: https://atcoder.jp/contests/arc197 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250504T2100&p1=248 - Duration: 120 minutes - Number of Tasks: 5 - 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: <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: 1200 ~ 2399 The point values will be 400-500-600-700-800. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc404">AtCoder Beginner Contest 404</a>. - Contest URL: https://atcoder.jp/contests/abc404 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250503T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-yellow-4.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-yellow">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-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-2.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-1.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: 100-250-300-400-475-550-600 We are looking forward to your participation!