We will hold THIRD PROGRAMMING CONTEST 2024（AtCoder Heuristic Contest 039）.

• Contest URL: https://atcoder.jp/contests/ahc039
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241110T1500&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. We will hold a long-term contest with a duration of more than a week and a short-term contest with a duration of less than a day, roughly alternately about once a month.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2025 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 Toyota Programming Contest 2024#11（AtCoder Beginner Contest 379）.

• Contest URL: https://atcoder.jp/contests/abc379
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241109T2100&p1=248
• Duration: 100 minutes
• Writer: MtSaka, toam, physics0523
• Tester: yuto1115, cn449
• Rated range: ~ 1999
• The point values: 100-200-300-400-475-550-575

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 378.

• Contest URL: https://atcoder.jp/contests/abc378
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241102T2100&p1=248
• Duration: 100 minutes
• Writer: sotanishy, nok0, physics0523
• Tester: Nyaan, math957963
• Rated range: ~ 1999
• The point values: 100-200-300-425-475-500-650

We are looking forward to your participation!

We will hold AtCoder Regular Contest 186.

• Contest URL: https://atcoder.jp/contests/arc186
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241027T2100&p1=248
• Duration: 120 minutes
• Number of Tasks: 5
• Writer: nuip
• Tester: maroonrk
• Rated range: 1200 ~ 2799

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

Note: This ARC also serves as a qualification round to select the 18 contestants for the Japanese national finals, making it significantly more difficult than a regular ARC. (For reference, the difficulty is close to that of ARC184.)

Due to circumstances, we replaced the tasks and changed the point values. Since there are no easy tasks, the difficulty level of solving one or more tasks has increased. Please be careful. Since the difficulty level is flat, we recommend reading all the tasks and not necessarily solving them in order.

We are looking forward to your participation!

We will hold TOYOTA SYSTEMS Programming Contest 2024（AtCoder Beginner Contest 377).

• Contest URL: https://atcoder.jp/contests/abc377
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241026T2100&p1=248
• Duration: 100 minutes
• Writer: MMNMM, sounansya
• Tester: physics0523, kyopro_friends
• Rated range: ~ 1999
• The point values: 100-200-300-400-475-550-575

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 376.

• Contest URL: https://atcoder.jp/contests/abc376
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241019T2100&p1=248
• Duration: 100 minutes
• Writer: yuto1115, Nyaan, evima
• Tester: sotanishy, toam
• Rated range: ~ 1999
• The point values: 150-250-350-400-475-550-650

We are looking forward to your participation!

We will hold AtCoder Regular Contest 185.

• Contest URL: https://atcoder.jp/contests/arc185
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241013T2100&p1=248
• Duration: 120 minutes
• Number of Tasks: 5
• Writer: Nyaan
• Tester: maspy
• Rated range: 1200 ~ 2799

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

We are looking forward to your participation!

We will hold Panasonic Programming Contest 2024（AtCoder Beginner Contest 375）.

• Contest URL: https://atcoder.jp/contests/abc375
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241012T2100&p1=248
• Duration: 100 minutes
• Writer: cn449, kyopro_friends, ynymxiaolongbao
• Tester: MtSaka, sounansya
• Rated range: ~ 1999
• The point values: 100-150-400-400-450-550-575

We are looking forward to your participation!

We will hold KEYENCE Programming Contest 2024（AtCoder Beginner Contest 374）.

• Contest URL: https://atcoder.jp/contests/abc374
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241005T2100&p1=248
• Duration: 100 minutes
• Writer: physics0523, math957963, ideas of all tasks are provided by KEYENCE
• Tester: yuto1115, nok0
• Rated range: ~ 1999
• The point values: 100-200-300-350-475-550-600

We are looking forward to your participation!

We will hold Toyota Programming Contest 2024#10（AtCoder Heuristic Contest 038）.

• Contest URL: https://atcoder.jp/contests/ahc038
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20241004T1900&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. We will hold a long-term contest with a duration of more than a week and a short-term contest with a duration of less than a day, roughly alternately about once a month.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2025 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 373.

• Contest URL: https://atcoder.jp/contests/abc373
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240928T2100&p1=248
• Duration: 100 minutes
• Writer: sotanishy, MtSaka, evima
• Tester: MMNMM, cn449
• Rated range: ~ 1999
• The point values: 100-200-250-400-500-550-600

We are looking forward to your participation!

We will hold AtCoder Regular Contest 184.

• Contest URL: https://atcoder.jp/contests/arc184
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240922T2100&p1=248
• Duration: 120 minutes
• Number of Tasks: 5
• Writer: Aus21, physics0523
• Tester: Nyaan, maspy
• Rated range: 1200 ~ 2799

The point values will be 600-700-900-1000-1000.

This is the first ARC after the change of admin. (See details)

• The criteria for scoring have been revised.
• The difficulty of the later problems is lower than before.

However, due to special circumstances, the difficulty of the earlier problems has significantly increased compared to the standard difficulty target for ARC under the new admin. In the future, the earlier problems in ARC are expected to be easier than this one.

Given the even distribution of difficulty, we recommend reading all problems rather than focusing solely on solving them in order.

We are looking forward to your participation!

We will hold UNIQUE VISION Programming Contest 2024 Autumn (AtCoder Beginner Contest 372).

• Contest URL: https://atcoder.jp/contests/abc372
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240921T2100&p1=248
• Duration: 100 minutes
• Writer: toam, sounansya, chokudai
• Tester: Nyaan, math957963
• Rated range: ~ 1999
• The point values: 100-200-350-400-475-525-625

We are looking forward to your participation!

We will hold 11th Asprova Programming Contest（AtCoder Heuristic Contest 037）.

• Contest URL: https://atcoder.jp/contests/ahc037
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240915T1900&p1=248
• Duration: 4 hours
• Writer: iaNTU, kozima, niuez
• 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. We will hold a long-term contest with a duration of more than a week and a short-term contest with a duration of less than a day, roughly alternately about once a month.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2025 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 371.

• Contest URL: https://atcoder.jp/contests/abc371
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240914T2100&p1=248
• Duration: 100 minutes
• Writer: MMNMM, nok0, physics0523
• Tester: physics0523, kyopro_friends
• Rated range: ~ 1999
• The point values: 150-200-300-350-475-550-575

We are looking forward to your participation!

We will hold Toyota Programming Contest 2024#9（AtCoder Beginner Contest 370）.

• Contest URL: https://atcoder.jp/contests/abc370
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240907T2100&p1=248
• Duration: 100 minutes
• Writer: Nyaan, cn449, ynymxiaolongbao
• Tester: sotanishy, MtSaka
• Rated range: ~ 1999
• The point values: 100-200-300-400-475-575-650

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 369.

• Contest URL: https://atcoder.jp/contests/abc369
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240831T2100&p1=248
• Duration: 100 minutes
• Writer: yuto1115, math957963, ynymxiaolongbao
• Tester: toam, sounansya
• Rated range: ~ 1999
• The point values: 100-200-300-400-450-500-600

We are looking forward to your participation!

We will hold Hitachi Vantara Programming Contest 2024（AtCoder Beginner Contest 368）.

• Contest URL: https://atcoder.jp/contests/abc368
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240824T2100&p1=248
• Duration: 100 minutes
• Writer: Aus21, kyopro_friends, math957963
• Tester: MMNMM, nok0
• Rated range: ~ 1999
• The point values: 100-200-300-425-475-475-575

We are looking forward to your participation!

We will hold RECRUIT Nihonbashi Half Marathon 2024 Summer（AtCoder Heuristic Contest 036）.

• Contest URL: https://atcoder.jp/contests/ahc036
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240823T1900&p1=248
• Duration: 10 days
• Staff: cozy_sauna, dpforest, eha, FLOPPY_30, frnfnts, hamray, hashiryo, japlj, kanra824, kys, n_knuu, roiti, samasama, shichinomiya, shiratty8, smiken, sugim48, suzume, TangentDay, tomerun, yupiteru, yusk
• 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. We will hold a long-term contest with a duration of more than a week and a short-term contest with a duration of less than a day, roughly alternately about once a month.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2025 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 367.

• Contest URL: https://atcoder.jp/contests/abc367
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240817T2100&p1=248
• Duration: 100 minutes
• Writer: physics0523, toam, ynymxiaolongbao
• Tester: yuto1115, cn449
• Rated range: ~ 1999
• The point values: 150-150-300-400-450-500-675

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 366.

• Contest URL: https://atcoder.jp/contests/abc366
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240810T2100&p1=248
• Duration: 100 minutes
• Writer: MtSaka, sotanishy
• Tester: Nyaan, math957963
• Rated range: ~ 1999
• The point values: 100-200-300-400-475-500-600

We are looking forward to your participation!

We will hold Toyota Programming Contest 2024#8（AtCoder Beginner Contest 365）.

• Contest URL: https://atcoder.jp/contests/abc365
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240803T2100&p1=248
• Duration: 100 minutes
• Writer: MMNMM, nok0
• Tester: physics0523, kyopro_friends
• Rated range: ~ 1999
• The point values: 100-200-300-400-450-575-575

We are looking forward to your participation!

We will restructure the contests.

Admins (From September 2024)

• The admin of AWTF will be maroonrk. (no change)
• The admin of AGC will be maroonrk. (no change)
• The admin of ARC will be changed from maroonrk to snuke.
• The admin of ABC will be snuke. (no change)

Frequency of contests

• We will hold AWTF once per year.
• From August 2024 to December 2024, we will hold AGC once per month. The frequency of AGC in 2025 hasn't been decided yet.
• We will hold ARC once or twice per month. At least 20 per year.
• We will hold ABC almost every week.

Rated ranges (from AGC067)

• We will raise the lower bound of the rated range of AGC to 2000. (no upper bound)
• We will raise the lower bound of the rated range of ARC to 1200. (The upper bound will remain 2799)
• The rated range of ABC will be 0-1999. (no change)

The difficulties and the point values of ARC (From September 2024 / ARC 184)

• The problems will be mainly adjusted for yellows and oranges.
• If we predict that a problem will be solved by about half of the participants around rating 2000, we will usually assign 600 points to the problem (sometimes we may slightly adjust it for various reasons). Similarly, 2400 — 800, 2800 — 1000.
• We will mainly use problems with 600 points or lower for A/B, problems between 600-1000 points for C/D/E, and problems with 1000 points or higher for F.
• The difficulty of problems A/B/C/D will be similar to recent ARCs. E/F (especially E) will be easier.

We will hold Japan Registry Services (JPRS) Programming Contest 2024#2 (AtCoder Beginner Contest 364).

• Contest URL: https://atcoder.jp/contests/abc364
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240727T2100&p1=248
• Duration: 100 minutes
• Writer: yuto1115, cn449
• Tester: sotanishy, toam
• Rated range: ~ 1999
• The point values: 100-200-250-425-475-500-600

We are looking forward to your participation!

We will hold ALGO ARTIS Programming Contest 2024 Summer（AtCoder Heuristic Contest 035）.

• Contest URL: https://atcoder.jp/contests/ahc035
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20240721T1500&p1=248
• Duration: 4 hours
• Writer: terry_u16
• 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. We will hold a long-term contest with a duration of more than a week and a short-term contest with a duration of less than a day, roughly alternately about once a month.

This contest is one of the qualifying contests for AtCoder World Tour Finals 2025 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!