We will hold HHKB Programming Contest 2023(AtCoder Beginner Contest 327).

• Contest URL: https://atcoder.jp/contests/abc327
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20231104T2100&p1=248
• Duration: 100 minutes
• Writer: Nyaan, math957963, evima
• Tester: cn449, yuto1115
• Rated range: ~ 1999
• The point values: 100-200-250-400-475-550-650

We are looking forward to your participation!

We will hold Panasonic Programming Contest 2023（AtCoder Beginner Contest 326）.

• Contest URL: https://atcoder.jp/contests/abc326
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20231028T2100&p1=248
• Duration: 100 minutes
• Writer: physics0523, kyopro_friends, evima
• Tester: nok0, MMNMM
• Rated range: ~ 1999
• The point values: 100-200-300-450-450-525-625

We are looking forward to your participation!

We will hold KEYENCE Programming Contest 2023 Autumn（AtCoder Beginner Contest 325）.

• Contest URL: https://atcoder.jp/contests/abc325
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20231021T2100&p1=248
• Duration: 100 minutes
• Writer: yuto1115, cn449, ideas of all tasks are provided by KEYENCE
• Tester: PCTprobability, math957963
• Rated range: ~ 1999
• The point values: 100-250-300-450-450-500-575

We are looking forward to your participation!

We will hold AtCoder Heuristic Contest 025.

• Contest URL: https://atcoder.jp/contests/ahc025
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20231014T1200&p1=248
• Duration: 8 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, alternately about once a month.

AHC has a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating system we use is monotonically non-decreasing, which values the best performance rather than the average performance. 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 Japan Registry Services (JPRS) Programming Contest 2023 (AtCoder Beginner Contest 324).

• Contest URL: https://atcoder.jp/contests/abc324
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20231014T2100&p1=248
• Duration: 100 minutes
• Writer: MMNMM, leaf1415, evima, kyopro_friends, ynymxiaolongbao
• Tester: kyopro_friends, Nyaan
• Rated range: ~ 1999
• The point values: 100-200-300-425-500-500-600

We are looking forward to your participation!

We will hold UNIQUE VISION Programming Contest 2023 Autumn(AtCoder Beginner Contest 323).

• Contest URL: https://atcoder.jp/contests/abc323
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20231007T2100&p1=248
• Duration: 100 minutes
• Writer: nok0, math957963, kyopro_friends, evima
• Tester: cn449, physics0523
• Rated range: ~ 1999
• The point values: 100-200-250-425-450-525-650 We are looking forward to your participation!

We will hold AtCoder Beginner Contest 322.

• Contest URL: https://atcoder.jp/contests/abc322
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230930T2100&p1=248
• Duration: 100 minutes
• Writer: Nyaan, PCTprobability, chokudai
• Tester: leaf1415, yuto1115
• Rated range: ~ 1999
• The point values: 100-200-250-400-475-550-600

We are looking forward to your participation!

We will hold Marubeni Programming Contest 2023 (AtCoder Heuristic Contest 024).

• Contest URL: https://atcoder.jp/contests/ahc024
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230924T1500&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, alternately about once a month.

AHC has a new rating system that is different from the existing ABC/ARC/AGC rating system. Unlike the ABC/ARC/AGC ratings, AHC rating system we use is monotonically non-decreasing, which values the best performance rather than the average performance. 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 SuntoryProgrammingContest2023 (AtCoder Beginner Contest 321).

• Contest URL: https://atcoder.jp/contests/abc321
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230923T2100&p1=248
• Duration: 100 minutes
• Writer: physics0523, yuto1115, kyopro_friends, nok0, ynymxiaolongbao
• Tester: nok0, MMNMM
• Rated range: ~ 1999
• The point values: 100-200-300-400-450-525-600

We are looking forward to your participation!

We will hold Toyota Programming Contest 2023#5（AtCoder Beginner Contest 320）.

• Contest URL: https://atcoder.jp/contests/abc320
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230916T2100&p1=248
• Duration: 100 minutes
• Writer: kyopro_friends, cn449
• Tester: PCTprobability, math957963
• Rated range: ~ 1999
• The point values: 100-200-300-400-475-550-600

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 319.

• Contest URL: https://atcoder.jp/contests/abc319
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230909T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: MMNMM, leaf1415, Nyaan, chokudai, m_99, evima
• Tester: kyopro_friends, Nyaan
• Rated range: ~ 1999

The point values will be 100-200-300-400-450-550-575.

Until ABC 318, we used 8 problems per contest because there were many difficult tasks we wanted to use in ABCs. Since we have used most of them, from this ABC, we will use 7 problems per contest.

The difficulty of problems A-F will not be changed. The range of difficulty of new problem Gs will be wider, some of them can be as easy as current problem Gs, while others can be as hard as current problem Exs. Please check the point values of each contest for more accurate estimation of difficulties.

We are looking forward to your participation!

We will hold THIRD PROGRAMMING CONTEST 2023 ALGO（AtCoder Beginner Contest 318）.

• Contest URL: https://atcoder.jp/contests/abc318
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230902T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: math957963, nok0, evima, m_99, Nyaan
• Tester: cn449, physics0523
• Rated range: ~ 1999

The point values will be 100-200-300-400-450-575-575-650.

We are looking forward to your participation!

We will hold GAMEFREAK Programming Contest 2023 (AtCoder Beginner Contest 317).

• Contest URL: https://atcoder.jp/contests/abc317
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230826T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: kyopro_friends, Nyaan, evima
• Tester: yuto1115, MMNMM
• Rated range: ~ 1999

The point values will be 100-200-300-400-425-500-600-650.

We are looking forward to your participation!

We will hold KEYENCE Programming Contest 2023 Summer（AtCoder Beginner Contest 315）.

• Contest URL: https://atcoder.jp/contests/abc315
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230819T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: cn449, physics0523, evima, Nyaan
• Tester: leaf1415, yuto1115
• Rated range: ~ 1999

The point values will be 100-200-300-400-425-500-575-625.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 314.

• Contest URL: https://atcoder.jp/contests/abc314
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230812T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: leaf1415, MMNMM, evima
• Tester: kyopro_friends, Nyaan
• Rated range: ~ 1999

The point values will be 100-200-300-400-475-475-575-625.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 313.

• Contest URL: https://atcoder.jp/contests/abc313
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230805T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: yuto1115, Nyaan, math957963, kyopro_friends, m_99
• Tester: cn449, physics0523
• Rated range: ~ 1999

The point values will be 100-300-400-550-600-625-625-650.

Since this contest is used as a qualification round for a local onsite contest, the problems are a bit different from usual ABCs. The style of the problems is a bit closer to ARCs, and the problems are a bit harder. Please refer to previous contests prepared in a similar manner.

• https://atcoder.jp/contests/abc262
• https://atcoder.jp/contests/abc288
• https://atcoder.jp/contests/abc290

We are looking forward to your participation!

We will hold UNIQUE VISION Programming Contest 2023 Summer(AtCoder Beginner Contest 312).

• Contest URL: https://atcoder.jp/contests/abc312
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230729T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: cn449, kyopro_friends, chokudai, evima, Nyaan
• Tester: MMNMM, leaf1415
• Rated range: ~ 1999
• The point values will be 100-200-300-400-500-500-550-600.

We are looking forward to your participation!

We will hold Toyota Programming Contest 2023#4（AtCoder Beginner Contest 311）.

• Contest URL: https://atcoder.jp/contests/abc311
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230722T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: Nyaan, physics0523, evima, leaf1415
• Tester: cn449, m_99
• Rated range: ~ 1999
• The point values will be 100-200-350-400-475-525-575-675.

We are looking forward to your participation!

We will hold freee Programming Contest 2023（AtCoder Beginner Contest 310）.

• Contest URL: https://atcoder.jp/contests/abc310
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230715T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: leaf1415, MMNMM, evima, ynymxiaolongbao
• Tester: nok0, PCTprobability
• Rated range: ~ 1999
• The point values will be 100-200-300-400-450-500-550-625.

We are looking forward to your participation!

We will hold Denso Create Programming Contest 2023 (AtCoder Beginner Contest 309).

• Contest URL: https://atcoder.jp/contests/abc309
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230708T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: PCTprobability, m_99, evima
• Tester: yuto1115, kyopro_friends
• Rated range: ~ 1999
• The point values will be 100-200-350-400-425-525-575-650.

We are looking forward to your participation!

We will hold AtCoder Beginner Contest 308.

• Contest URL: https://atcoder.jp/contests/abc308
• Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20230701T2100&p1=248
• Duration: 100 minutes
• Number of Tasks: 8
• Writer: yuto1115, nok0, evima, Nyaan
• Tester: Nyaan, physics0523
• Rated range: ~ 1999
• The point values will be 100 — 200 — 300 — 400 — 475 — 500 — 600 — 625.

We are looking forward to your participation!