We will hold Mirrativ Programming Contest 2025 (AtCoder Beginner Contest 414).

• Contest URL: https://atcoder.jp/contests/abc414
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250712T2100&p1=248
• Duration: 100 minutes
• Writer: sheyasutaka, toam, sounansya
• Tester: Nyaan, kyopro_friends
• Rated range: ~ 1999
• The point values: 100-200-350-400-475-525-625

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 050.

• Contest URL: https://atcoder.jp/contests/ahc050
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250706T1900&p1=248
• Duration: 4 hours
• Writer: physics0523
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests held regularly on AtCoder. Unlike algorithm contests such as ABC/ARC/AGC, the goal is to create a better solution to a problem for which it is difficult to find the optimal solution.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2026 to crown the world champion of AtCoder players. Please refer to this post for more details.

After the contest ends, all participants can post their approach on the Editorial tab. Please share your approach.

We are looking forward to your participation!

We will hold Denso Create Programming Contest 2025（AtCoder Beginner Contest 413）.

• Contest URL: https://atcoder.jp/contests/abc413
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250705T2100&p1=248
• Duration: 100 minutes
• Writer: MMNMM, MtSaka, sounansya, toam, PCTprobability
• Tester: yuto1115, physics0523
• Rated range: ~ 1999
• The point values: 100-200-300-425-450-525-575

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 412.

• Contest URL: https://atcoder.jp/contests/abc412
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250628T2100&p1=248
• Duration: 100 minutes
• Writer: Nyaan, cn449
• Tester: toam, sounansya
• Rated range: ~ 1999
• The point values: 100-200-300-425-500-525-650

We are looking forward to your participation!

We will hold Toyota Programming Contest 2025#3（AtCoder Heuristic Contest 049）.

• Contest URL: https://atcoder.jp/contests/ahc049
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250621T1500&p1=248
• Duration: 4 hours
• Writer: wata_admin
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests held regularly on AtCoder. Unlike algorithm contests such as ABC/ARC/AGC, the goal is to create a better solution to a problem for which it is difficult to find the optimal solution.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2026 to crown the world champion of AtCoder players. Please refer to this post for more details.

After the contest ends, all participants can post their approach on the Editorial tab. Please share your approach.

We are looking forward to your participation!

We will hold AtCoder Regular Contest 201.

• Contest URL: https://atcoder.jp/contests/arc201
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250622T2100&p1=248
• Duration: 120 minutes
• Number of Tasks: 6
• Writer: snuke
• Tester: Nyaan, maspy
• Rated range: 1200 ~ 2799

The point values will be 500-500-600-700-800-1000.

Please note that the rated range differs from usual, as this ARC also serves as a qualifying round for a domestic contest in Japan.

We are looking forward to your participation!

We will hold UNIQUE VISION Programming Contest 2025 Summer (AtCoder Beginner Contest 411).

• Contest URL: https://atcoder.jp/contests/abc411
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250621T2100&p1=248
• Duration: 100 minutes
• Writer: yuto1115, math957963, ynymxiaolongbao, toam
• Tester: sheyasutaka, MMNMM
• Rated range: ~ 1999
• The point values: 100-200-350-425-450-525-600

We are looking forward to your participation!

We will hold AtCoder Regular Contest 200 (Div. 2).

• Contest URL: https://atcoder.jp/contests/arc200
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250615T2100&p1=248
• Duration: 120 minutes
• Number of Tasks: 5
• Writer: sounansya
• Tester: Nyaan, maspy
• Rated range: 1200 ~ 2399

The point values will be 500-600-700-700-800.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 410.

• Contest URL: https://atcoder.jp/contests/abc410
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250614T2100&p1=248
• Duration: 100 minutes
• Writer: physics0523, kyopro_friends
• Tester: nok0, MMNMM
• Rated range: ~ 1999
• The point values: 100-200-300-400-450-525-575

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 409.

• Contest URL: https://atcoder.jp/contests/abc409
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250607T2100&p1=248
• Duration: 100 minutes
• Writer: sotanishy, toam
• Tester: math957963, cn449
• Rated range: ~ 1999
• The point values: 100-200-300-400-425-500-625

We are looking forward to your participation!

We will hold AtCoder Regular Contest 199 (Div. 1).

• 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: toam
• Tester: sotanishy, maspy
• Rated range: 1600 ~ 2999

The point values will be 800-800-900-1000.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 408.

• Contest URL: https://atcoder.jp/contests/abc408
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250531T2100&p1=248
• Duration: 100 minutes
• Writer: MtSaka, sounansya
• Tester: Nyaan, yuto1115
• Rated range: ~ 1999
• The point values: 150-150-300-400-450-500-625

We are looking forward to your participation!

We will hold MC Digital Programming Contest 2025 (AtCoder Heuristic Contest 048).

• Contest URL: https://atcoder.jp/contests/ahc048
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250530T1900&p1=248
• Duration: 10 days
• Writer: wata_admin
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests held regularly on AtCoder. Unlike algorithm contests such as ABC/ARC/AGC, the goal is to create a better solution to a problem for which it is difficult to find the optimal solution.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2026 to crown the world champion of AtCoder players. Please refer to this post for more details.

After the contest ends, all participants can post their approach on the Editorial tab. Please share your approach.

We are looking forward to your participation!

We will hold AtCoder Regular Contest 198 (Div. 2).

• 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: PCTprobability
• Tester: Nyaan, maspy
• Rated range: 1200 ~ 2399

The point values will be 300-500-700-700-900.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 407.

• Contest URL: https://atcoder.jp/contests/abc407
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250524T2100&p1=248
• Duration: 100 minutes
• Writer: sheyasutaka, MMNMM
• Tester: physics0523, kyopro_friends
• Rated range: ~ 1999
• The point values: 150-250-300-425-450-550-600

We are looking forward to your participation!

We will hold Toyota Programming Contest 2025#2（AtCoder Heuristic Contest 047）.

• Contest URL: https://atcoder.jp/contests/ahc047
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250518T1900&p1=248
• Duration: 4 hours
• Writer: chokudai
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests held regularly on AtCoder. Unlike algorithm contests such as ABC/ARC/AGC, the goal is to create a better solution to a problem for which it is difficult to find the optimal solution.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2026 to crown the world champion of AtCoder players. Please refer to this post for more details.

After the contest ends, all participants can post their approach on the Editorial tab. Please share your approach.

We are looking forward to your participation!

We will hold Panasonic Programming Contest 2025（AtCoder Beginner Contest 406）.

• Contest URL: https://atcoder.jp/contests/abc406
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250517T2100&p1=248
• Duration: 100 minutes
• Writer: math957963, cn449, sounansya, maspy
• Tester: MtSaka, toam
• Rated range: ~ 1999
• The point values: 100-200-350-400-450-500-625

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 405.

• Contest URL: https://atcoder.jp/contests/abc405
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250510T2100&p1=248
• Duration: 100 minutes
• Writer: Nyaan, yuto1115, ynymxiaolongbao
• Tester: sotanishy, sounansya
• Rated range: ~ 1999
• The point values: 100-200-300-400-475-525-625

We are looking forward to your participation!

We will hold AtCoder Regular Contest 197 (Div. 2).

• 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: maspy
• Tester: Nyaan
• Rated range: 1200 ~ 2399

The point values will be 400-500-600-700-800.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 404.

• Contest URL: https://atcoder.jp/contests/abc404
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250503T2100&p1=248
• Duration: 100 minutes
• Writer: physics0523, kyopro_friends, sounansya
• Tester: nok0, MMNMM
• Rated range: ~ 1999
• The point values: 100-250-300-400-475-550-600

We are looking forward to your participation!

We will hold BrainPad Programming Contest 2025 （AtCoder Heuristic Contest 046）.

• Contest URL: https://atcoder.jp/contests/ahc046
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250426T1500&p1=248
• Duration: 4 hours
• Writer: wata_admin
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests held regularly on AtCoder. Unlike algorithm contests such as ABC/ARC/AGC, the goal is to create a better solution to a problem for which it is difficult to find the optimal solution.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2026 to crown the world champion of AtCoder players. Please refer to this post for more details.

After the contest ends, all participants can post their approach on the Editorial tab. Please share your approach.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 403.

• Contest URL: https://atcoder.jp/contests/abc403
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250427T2100&p1=248
• Duration: 100 minutes
• Writer: sotanishy, toam
• Tester: math957963, cn449
• Rated range: ~ 1999
• The point values: 100-250-300-425-500-500-600

We are looking forward to your participation!

We will hold Tokio Marine & Nichido Fire Insurance Programming Contest 2025 (AtCoder Beginner Contest 402).

• Contest URL: https://atcoder.jp/contests/abc402
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250419T2100&p1=248
• Duration: 100 minutes
• Writer: MtSaka, sounansya
• Tester: Nyaan, yuto1115
• Rated range: ~ 1999
• The point values: 100-200-300-400-450-525-650

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 401.

• Contest URL: https://atcoder.jp/contests/abc401
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250412T2100&p1=248
• Duration: 100 minutes
• Writer: nok0, MMNMM, evima
• Tester: physics0523, kyopro_friends
• Rated range: ~ 1999
• The point values: 100-200-300-400-450-500-575

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 400.

• Contest URL: https://atcoder.jp/contests/abc400
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20250405T2100&p1=248
• Duration: 100 minutes
• Writer: math957963, cn449, chokudai, Nyaan
• Tester: sotanishy, toam
• Rated range: ~ 1999
• The point values: 100-200-350-400-425-550-625

We are looking forward to your participation!