QOJ.ac

QOJ

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hos.lyric🐇

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3500

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格言

$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$

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AC 过的题目：共 1571 道题

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Tried problems：共 84 道题

387 443 1221 1222 1542 1614 2743 3875 4059 4254 4255 4659 4662 4899 4902 4904 4911 4913 4915 4917 4923 4924 5017 5022 5023 5037 5094 5098 5100 5166 5167 5169 5171 5175 5177 5219 5224 5853 6689 6734 7119 7120 7121 7122 7647 7651 7760 7763 7764 7767 7770 7773 7776 7790 7791 7794 7839 7855 7869 7872 7973 7975 8002 8178 8816 8828 8926 9158 9160 9514 9534 9563 9604 9605 9606 9609 9610 9633 9634 9635 9694 21619 21663 21870

Authored Problems：共 0 道题

无

Virtual Participations：共 108 场比赛

Name	Start time
2024-2025 集训队互测 Round 17 (Nov 22, 2024)	2025-03-10 05:30:10
2024-2025 集训队互测 Round 16 (Nov 19, 2024)	2025-02-12 11:00:00
2024-2025 集训队互测 Round 15 (Nov 17, 2024)	2025-02-11 09:00:58
2024-2025 集训队互测 Round 14 (Nov 15, 2024)	2025-02-05 12:01:20
2024-2025 集训队互测 Round 13 (Nov 12, 2024)	2025-01-17 07:00:00
2024-2025 集训队互测 Round 12 (Nov 10, 2024)	2025-01-10 13:00:06
2024-2025 集训队互测 Round 11 (Nov 8, 2024)	2025-01-09 11:00:02
3 October, 2021 — Waterloo local contest	2024-12-05 18:00:00
The 2024 ICPC Asia East Continent Online Contest (I)	2024-11-22 22:15:00
2016 浙江省队选拔赛 Day 2 (ZJOI 2016 Day 2)	2024-11-18 20:00:03
2016 浙江省队选拔赛 Day 1 (ZJOI 2016 Day 1)	2024-11-14 02:00:11
2024-2025 集训队互测 Round 10 (Nov 5, 2024)	2024-11-12 10:00:01
2024-2025 集训队互测 Round 9 (Nov 3, 2024)	2024-11-11 13:00:02
2024-2025 集训队互测 Round 8 (Nov 1, 2024)	2024-11-07 21:00:06
2024-2025 集训队互测 Round 7 (Oct 29, 2024)	2024-11-07 05:00:02
2024 陕西省队选拔赛 Day 2 (SNOI 2024 Day 2)	2024-11-06 03:00:15
2024-2025 集训队互测 Round 6 (Oct 27, 2024)	2024-11-05 15:00:07
2024 陕西省队选拔赛 Day 1 (SNOI 2024 Day 1)	2024-11-01 22:30:00
2024-2025 集训队互测 Round 5 (Oct 25, 2024)	2024-11-01 05:00:03
2024-2025 集训队互测 Round 4 (Oct 22, 2024)	2024-10-31 06:00:04
2024-2025 集训队互测 Round 3 (Oct 20, 2024)	2024-10-29 10:00:05
2024-2025 集训队互测 Round 2 (Oct 19, 2024)	2024-10-22 22:00:01
2024-2025 集训队互测 Round 1 (Oct 15, 2024)	2024-10-17 14:59:59
2024 清华大学学生程序设计竞赛暨高校邀请赛（THUPC 2024）初赛	2024-10-15 23:00:01
2022 安徽省队选拔赛 (AHOI 2022)	2024-10-14 20:30:00
(China) National Olympiad in Informatics 2024 Day 2	2024-07-29 15:59:59
(China) National Olympiad in Informatics 2024 Day 1	2024-07-24 04:59:57
2024 小青鱼训练中心 NOI Training Contest #3: Tedious Contest	2024-07-11 07:00:03
2024 小青鱼训练中心 NOI Training Contest #2: :qingyu5: Contest	2024-07-08 08:59:58
2024 小青鱼训练中心 NOI Training Contest #1: jqdai Contest	2024-06-28 04:30:09
2024 小青鱼训练中心 Contest #9: qazswedx Contest	2024-05-20 23:30:09
2024 小青鱼训练中心 Contest #8: Shandong PTT Contest 2 by Walker Shi	2024-05-20 03:00:10
2024 小青鱼训练中心 Contest #7: CDQZ Contest	2024-05-13 19:29:56
2024 小青鱼训练中心 Contest #6: Haoba Contest 2	2024-05-09 22:59:59
2024 小青鱼训练中心 Contest #5: HZEZ Contest	2024-05-03 01:00:01
2024 小青鱼训练中心 Contest #4: fateice Contest	2024-05-01 11:45:04
2024 小青鱼训练中心 Contest #3: Haoba Contest 1	2024-05-01 03:45:00
2024 小青鱼训练中心 Contest #2: Shandong PTT Contest	2024-04-30 09:14:59
2024 小青鱼训练中心 Contest #1: jiangly Contest	2024-04-25 09:00:00
2022 山东·山西省队选拔赛二试 (SDOI 2022 Round 2)	2024-02-05 18:59:59
2022 山东·山西省队选拔赛一试 (SDOI 2022 Round 1)	2024-02-02 22:00:01
集训队互测 2015 Round 1	2024-01-22 21:30:00
集训队互测 2018 Round 1	2024-01-21 16:59:58
2023-2024 集训队互测 Round 17 (Nov 30, 2023)	2024-01-16 16:00:08
2023-2024 集训队互测 Round 16 (Nov 28, 2023)	2024-01-11 11:00:01
2023-2024 集训队互测 Round 15 (Nov 26, 2023)	2024-01-10 17:45:04
2023-2024 集训队互测 Round 14 (Nov 25, 2023)	2023-12-11 12:16:14
2023-2024 集训队互测 Round 13 (Nov 23, 2023)	2023-11-27 10:26:33
2023-2024 集训队互测 Round 12 (Nov 21, 2023)	2023-11-23 10:52:30
2023-2024 集训队互测 Round 11 (Nov 19, 2023)	2023-11-22 03:27:49
2023-2024 集训队互测 Round 10 (Nov 16, 2023)	2023-11-21 11:34:04
2023-2024 集训队互测 Round 9 (Nov 14, 2023)	2023-11-17 08:00:02
2023-2024 集训队互测 Round 8 (Nov 12, 2023)	2023-11-15 08:04:59
2023-2024 集训队互测 Round 7 (Nov 11, 2023)	2023-11-13 07:30:08
2023-2024 集训队互测 Round 6 (Nov 9, 2023)	2023-11-10 17:30:14
2023-2024 集训队互测 Round 5 (Nov 7, 2023)	2023-11-09 22:59:14
2023-2024 集训队互测 Round 4 (Nov 5, 2023)	2023-11-08 18:30:33
2023-2024 集训队互测 Round 3 (Nov 4, 2023)	2023-11-08 02:32:28
2023-2024 集训队互测 Round 2 (Oct 29, 2023)	2023-11-06 13:00:23
2023-2024 集训队互测 Round 1 (Oct 28, 2023)	2023-11-02 16:03:19
2022-2023 集训队互测 Round 15 (Dec 2, 2022)	2023-10-24 18:59:39
2022-2023 集训队互测 Round 14 (Nov 30, 2022)	2023-10-24 00:00:16
2022-2023 集训队互测 Round 13 (Dec 3, 2022)	2023-10-23 05:30:26
2022-2023 集训队互测 Round 12 (Nov 29, 2022)	2023-10-20 07:01:31
2022-2023 集训队互测 Round 11 (Nov 22, 2022)	2023-10-19 09:30:49
2022-2023 集训队互测 Round 10 (Nov 20, 2022)	2023-10-13 10:16:21
2022-2023 集训队互测 Round 9 (Nov 19, 2022)	2023-10-12 09:50:40
2022-2023 集训队互测 Round 8 (Nov 17, 2022)	2023-10-11 10:00:10
2022-2023 集训队互测 Round 7 (Nov 13, 2022)	2023-10-11 01:45:45
2022-2023 集训队互测 Round 6 (Nov 12, 2022)	2023-10-09 23:10:18
2022-2023 集训队互测 Round 5 (Nov 9, 2022)	2023-10-09 08:00:02
2022-2023 集训队互测 Round 4 (Nov 6, 2022)	2023-10-06 04:07:13
2022-2023 集训队互测 Round 3 (Nov 4, 2022)	2023-10-05 04:45:14
2022-2023 集训队互测 Round 2 (Nov 1, 2022)	2023-10-03 10:03:59
2022-2023 集训队互测 Round 1 (Oct 30, 2022)	2023-09-30 07:06:01
2021 集训队互测 Round 12	2023-09-28 02:30:08
2021 集训队互测 Round 11	2023-09-27 08:08:33
2021 集训队互测 Round 10	2023-09-26 04:03:30
2021 集训队互测 Round 9	2023-09-25 16:00:41
2021 集训队互测 Round 8	2023-09-24 07:30:02
2021 集训队互测 Round 7	2023-09-22 07:30:12
2021 集训队互测 Round 6	2023-09-21 13:00:26
2021 集训队互测 Round 5	2023-09-20 04:00:33
2021 集训队互测 Round 4	2023-09-19 05:00:07
2021 集训队互测 Round 3	2023-09-18 04:30:11
2021 集训队互测 Round 2	2023-09-17 05:30:13
2021 集训队互测 Round 1	2023-09-16 04:00:07
(China) National Olympiad in Informatics 2017 Day 2	2023-09-15 11:15:13
(China) National Olympiad in Informatics 2017 Day 1	2023-09-15 09:00:03
(China) National Olympiad in Informatics 2018 Day 2	2023-09-15 00:00:11
(China) National Olympiad in Informatics 2018 Day 1	2023-09-14 06:00:41
(China) National Olympiad in Informatics 2019 Day 2	2023-09-13 22:02:07
(China) National Olympiad in Informatics 2019 Day 1	2023-09-13 04:00:20
(China) National Olympiad in Informatics 2020 Day 2	2023-09-07 14:00:19
International Olympiad in Informatics 2023 Day 2	2023-09-04 15:30:35
International Olympiad in Informatics 2023 Day 1	2023-09-01 14:00:37
(China) National Olympiad in Informatics 2020 Day 1	2023-08-27 14:03:26
(China) National Olympiad in Informatics 2021 Day 2	2023-08-25 12:00:03
(China) National Olympiad in Informatics 2021 Day 1	2023-08-24 14:00:12
(China) National Olympiad in Informatics 2022 Day 2	2023-08-22 02:00:05
(China) National Olympiad in Informatics 2022 Day 1	2023-08-20 01:30:38
(China) National Olympiad in Informatics 2023 Day 2	2023-08-09 21:10:43
(China) National Olympiad in Informatics 2023 Day 1	2023-08-03 08:30:51
Public NOIP Round #5 (Div. 1, 提高)	2023-07-26 03:00:03
2018 浙江省队选拔赛 Day 2 (ZJOI 2018 Day 2)	2023-06-16 05:25:19
IOI 2023 中国国家队选拔第一试 (CTS 2023 Day 1)	2023-05-01 10:31:00
Public NOIP Round #2 (Div. 1, 提高)	2022-10-13 07:40:31
Public NOIP Round #1 (Div. 1, 提高)	2022-10-11 19:03:09