We will hold 10th Asprova Programming Contest (AtCoder Heuristic Contest 023).

• Contest URL: https://atcoder.jp/contests/ahc023
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230903T1000&p1=248
• Duration: 7 days
• Writer/Tester: c7c7, iaNTU, kozima, niuez, and several others
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold RECRUIT Nihonbashi Half Marathon 2023 Summer (AtCoder Heuristic Contest 022).

• Contest URL: https://atcoder.jp/contests/ahc022
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230811T1200&p1=248
• Duration: 9 days
• Staff: cozy_sauna, dpforest, eha, FLOPPY_30, hamray, japlj, kanra824, kys, n_knuu, Naccan, roiti, shichinomiya, shiratty8, smiken, sugim48, suzume, TangentDay, Ti11192916, tomerun, yupiteru, yusk
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold TOYOTA Programming Contest 2023 Summer (AtCoder Heuristic Contest 021).

• Contest URL: https://atcoder.jp/contests/ahc021
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230625T1500&p1=248
• Duration: 4 hours
• Writer: wata_admin
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold ALGO ARTIS Programming Contest 2023 (AtCoder Heuristic Contest 020).

• Contest URL: https://atcoder.jp/contests/ahc020
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230611T1500&p1=248
• Duration: 4 hours
• Writer: terry_u16
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold ALGO ARTIS Programming Contest 2023 (AtCoder Heuristic Contest 020).

• Contest URL: https://atcoder.jp/contests/ahc020
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230423T1500&p1=248
• Duration: 4 hours
• Writer: terry_u16
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold MC Digital Programming Contest 2023 (AtCoder Heuristic Contest 019).

• Contest URL: https://atcoder.jp/contests/ahc019
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230318T1200&p1=248
• Duration: 2 weeks
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold RECRUIT Nihonbashi Half Marathon 2023 Winter（AtCoder Heuristic Contest 018）.

• Contest URL: https://atcoder.jp/contests/ahc018
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230218T1200&p1=248
• Duration: 8 days
• Staff：dpforest, eha, japlj, roiti, shichinomiya, shiratty8, sugim48, suzume, TangentDay, Ti11192916, tomerun, yupiteru, yusk
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold THIRD PROGRAMMING CONTEST 2022 (AtCoder Heuristic Contest 017).

• Contest URL: https://atcoder.jp/contests/ahc017
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230128T1200&p1=248
• Duration: 8 days
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold HACK TO THE FUTURE 2023 qual (AtCoder Heuristic Contest 016).

• Contest URL: https://atcoder.jp/contests/ahc016
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20221111T1900&p1=248
• Duration: 9 days
• Writer: wata
• Member: tsukammo, dchular
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a series of programming contests that will be 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold TOYOTA MOTOR CORPORATION Programming Contest 2022 (AtCoder Heuristic Contest 015).

• Contest URL: https://atcoder.jp/contests/ahc015
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20221030T1500&p1=248
• Duration: 4 hours
• Writer: chokudai
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold estie Programming Contest 2022 (AtCoder Heuristic Contest 014).

• Contest URL: https://atcoder.jp/contests/ahc014
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220917T1500&p1=248
• Duration: 2 weeks (long-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold RECRUIT Nihonbashi Half Marathon 2022 Summer (AHC013).

• Contest URL: https://atcoder.jp/contests/ahc013
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220809T2100&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220816T2100&p1=248
• Duration: 1 week (long-term contest)
• Staff: dpforest, eha, japlj, roiti, shichinomiya, shiratty8, sugim48, suzume, TangentDay, Ti11192916, tomerun, yupiteru, yusk
• Rated range: All (Heuristic Rating)

Nihonbashi Half Marathon is a programming contest held by Recruit Co., Ltd.. This contest is rated for AHC rating. Unlike algorithm contests such as ABC/ARC/AGC, the goal of AtCoder Heuristic Contest (AHC) is to create a better solution to a problem for which it is difficult to find the optimal solution.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 012.

• Contest URL: https://atcoder.jp/contests/ahc012
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220703T1500&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220703T1900&p1=248
• Duration: 4 hours (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 011.

• Contest URL: https://atcoder.jp/contests/ahc011
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220528T1200&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220605T1900&p1=248
• Duration: 8 days (long-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold ALGO ARTIS Programming Contest 2022（AtCoder Heuristic Contest 010）.

• Contest URL: https://atcoder.jp/contests/ahc010
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220424T1500&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220424T1900&p1=248
• Duration: 240 minutes (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold Monoxer Programming Contest 2022 (AtCoder Heuristic Contest 009).

• Contest URL: https://atcoder.jp/contests/ahc009
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220326T1500&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220326T1900&p1=248
• Duration: 240 minutes (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold MC Digital Programming Contest 2022 (AtCoder Heuristic Contest 008).

• Contest URL: https://atcoder.jp/contests/ahc008
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220212T1200&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220226T1900&p1=248
• Duration: 2 weeks (long-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

AHC uses a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating does not decrease even if contest performance is poor. Please feel free to participate. You can check the current ranking here: https://atcoder.jp/ranking?contestType=heuristic

We are looking forward to your participation!

We will hold THIRD Programming Contest 2021 (AtCoder Heuristic Contest 007).

• Contest URL: https://atcoder.jp/contests/ahc007
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20211212T1600&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20211212T2000&p1=248
• Duration: 240 minutes (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

We are looking forward to your participation!

We will hold Kyocera Programming Contest (AtCoder Heuristic Contest 006).

• Contest URL: https://atcoder.jp/contests/ahc006
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20211114T1600&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20211114T2000&p1=248
• Duration: 240 minutes (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

We are looking forward to your participation!

HACK TO THE FUTURE 2022 qual has just started!

• Contest URL: https://atcoder.jp/contests/future-contest-2022-qual
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20211103T1900&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20211113T1900&p1=248
• Duration: 10 days (long-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

There is a single optimization problem, like AtCoder Heuristic Contest (AHC). This contest is rated for AHC rating.

We are looking forward to your participation!

We will hold RECRUIT Nihonbashi Half Marathon 2021 (long).

• Contest URL: https://atcoder.jp/contests/rcl-contest-2021-long
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210905T1800&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210912T1800&p1=248
• Duration: 7 days (long-term contest)
• Writer: Recruit Co., Ltd.
• Rated range: All (Heuristic Rating)

There is a single optimization problem, like AtCoder Heuristic Contest (AHC). This contest is rated for AHC rating.

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 005.

• Contest URL: https://atcoder.jp/contests/ahc005
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210807T1600&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210807T2000&p1=248
• Duration: 240 minutes (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 004.

• Contest URL: https://atcoder.jp/contests/ahc004
• Start Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210626T1300&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210626T1900&p1=248
• Duration: 360 minutes (short-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are planning to 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, alternately about once a month.

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 003.

• Contest URL: https://atcoder.jp/contests/ahc003
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210522T1200&p1=248
• End Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210530T2000&p1=248
• Duration: 8 days + 8 hours (long-term contest)
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are looking forward to your participation!

We will hold AtCoder Heuristic Contest 002.

• Contest URL: https://atcoder.jp/contests/ahc002
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20210425T1900&p1=248
• End Time: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210425T2300&p1=248
• Duration: 4 hours
• Writer: wata
• Rated range: All (Heuristic Rating)

AtCoder Heuristic Contest (AHC) is a new series of programming contests that will be 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 are looking forward to your participation!