problem_id,start_at,end_at,weight
ahc001,2021-03-06 12:00:00+09:00,2021-03-14 20:00:00+09:00,1.0
ahc002,2021-04-25 19:00:00+09:00,2021-04-25 23:00:00+09:00,1.0
ahc003,2021-05-22 12:00:00+09:00,2021-05-30 20:00:00+09:00,1.0
ahc004,2021-06-26 13:00:00+09:00,2021-06-26 19:00:00+09:00,1.0
ahc005,2021-08-07 16:00:00+09:00,2021-08-07 20:00:00+09:00,1.0
rcl-contest-2021-long,2021-09-05 18:00:00+09:00,2021-09-12 18:00:00+09:00,1.0
future-contest-2022-qual,2021-11-03 19:00:00+09:00,2021-11-13 19:00:00+09:00,1.0
ahc006,2021-11-14 16:00:00+09:00,2021-11-14 20:00:00+09:00,1.0
ahc007,2021-12-12 16:00:00+09:00,2021-12-12 20:00:00+09:00,1.0
ahc008,2022-02-12 12:00:00+09:00,2022-02-26 19:00:00+09:00,1.0
ahc009,2022-03-26 15:00:00+09:00,2022-03-26 19:00:00+09:00,1.0
ahc010,2022-04-24 15:00:00+09:00,2022-04-24 19:00:00+09:00,1.0
ahc011,2022-05-28 12:00:00+09:00,2022-06-05 19:00:00+09:00,1.0
ahc012,2022-07-03 15:00:00+09:00,2022-07-03 19:00:00+09:00,1.0
ahc013,2022-08-09 21:00:00+09:00,2022-08-16 21:00:00+09:00,1.0
ahc014,2022-09-17 15:00:00+09:00,2022-10-01 19:00:00+09:00,1.0
ahc015,2022-10-30 15:00:00+09:00,2022-10-30 19:00:00+09:00,1.0
ahc016,2022-11-11 19:00:00+09:00,2022-11-20 19:00:00+09:00,1.0
ahc017,2023-01-28 12:00:00+09:00,2023-02-05 20:00:00+09:00,1.0
ahc018,2023-02-18 12:00:00+09:00,2023-02-26 19:00:00+09:00,1.0
ahc019,2023-03-18 12:00:00+09:00,2023-04-02 19:00:00+09:00,1.0
ahc020,2023-06-11 15:00:00+09:00,2023-06-11 19:00:00+09:00,1.0
ahc021,2023-06-25 15:00:00+09:00,2023-06-25 19:00:00+09:00,1.0
ahc022,2023-08-11 12:00:00+09:00,2023-08-20 19:00:00+09:00,1.0
toyota2023summer-final,2023-08-27 10:15:00+09:00,2023-08-27 13:45:00+09:00,1.0
ahc023,2023-09-03 10:00:00+09:00,2023-09-10 20:00:00+09:00,1.0
ahc024,2023-09-24 15:00:00+09:00,2023-09-24 19:00:00+09:00,1.0
ahc025,2023-10-14 12:00:00+09:00,2023-10-22 19:00:00+09:00,1.0
ahc026,2023-11-05 15:00:00+09:00,2023-11-05 19:00:00+09:00,1.0
ahc027,2023-12-01 19:00:00+09:00,2023-12-10 19:00:00+09:00,1.0
ahc029,2023-12-22 12:00:00+09:00,2023-12-26 21:00:00+09:00,1.0
ahc028,2024-01-13 15:00:00+09:00,2024-01-13 19:00:00+09:00,1.0
ahc030,2024-02-09 19:00:00+09:00,2024-02-19 19:00:00+09:00,1.0
ahc031,2024-03-22 19:00:00+09:00,2024-04-01 19:00:00+09:00,1.0
ahc032,2024-04-07 19:00:00+09:00,2024-04-07 23:00:00+09:00,1.0
ahc033,2024-05-17 19:00:00+09:00,2024-05-27 19:00:00+09:00,1.0
ahc034,2024-06-16 15:00:00+09:00,2024-06-16 19:00:00+09:00,1.0
ahc035,2024-07-21 15:00:00+09:00,2024-07-21 19:00:00+09:00,1.0
ahc036,2024-08-23 19:00:00+09:00,2024-09-02 19:00:00+09:00,1.0
ahc037,2024-09-15 19:00:00+09:00,2024-09-15 23:00:00+09:00,1.0
ahc038,2024-10-04 19:00:00+09:00,2024-10-14 19:00:00+09:00,1.0
ahc039,2024-11-10 15:00:00+09:00,2024-11-10 19:00:00+09:00,1.0
ahc040,2024-11-29 19:00:00+09:00,2024-12-09 19:00:00+09:00,1.0
ahc041,2025-01-19 15:00:00+09:00,2025-01-19 19:00:00+09:00,0.5
ahc042,2025-02-02 19:00:00+09:00,2025-02-02 23:00:00+09:00,0.5
ahc043,2025-02-14 19:00:00+09:00,2025-02-24 19:00:00+09:00,1.0
ahc044,2025-03-16 19:00:00+09:00,2025-03-16 23:00:00+09:00,0.5
ahc045,2025-03-28 19:00:00+09:00,2025-04-07 19:00:00+09:00,1.0
ahc046,2025-04-26 15:00:00+09:00,2025-04-26 19:00:00+09:00,0.5