Problem A
Working at the Restaurant — Problem Statistics

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Submissions	8380
Accepted submissions	2078
Submission ratio	24.80%
Authors	1824
Full solves [?]	1507
Full solve Ratio	82.62%

#	User	Runtime	Language	Date
1	Flep	0.00 s	C	2020-02-16 12:35:57
2	Hidden user	0.01 s	C	2016-05-09 02:15:35
3	Dave Poplawski	0.01 s	C	2016-10-02 20:26:51
4	Adrien Coulier	0.01 s	C	2016-11-16 22:37:34
5	John Smith	0.01 s	C	2019-03-17 10:29:41
6	Jiangfeng Du	0.01 s	C	2019-07-19 14:48:39
7	Raymond Yang	0.01 s	C	2020-01-08 22:05:25
8	Abhinav Dusi	0.01 s	C	2021-10-04 03:54:44
9	Alexander Bilde Pedersen	0.01 s	C	2023-02-03 01:58:33
10	Mirel Cosulschi	0.01 s	C	2025-01-02 15:42:39

#	User	Runtime	Language	Date
1	samvid mistry	0.15 s	C#	2024-12-29 09:36:20
2	Marek	0.16 s	C#	2016-11-02 19:32:02
3	Moo	0.16 s	C#	2017-07-22 11:28:56
4	Andrzej Krajniak	0.17 s	C#	2016-11-02 18:28:50

#	User	Runtime	Language	Date
1	Anders Westling	0.01 s	C++	2014-03-31 19:48:21
2	Patrik Lilja	0.01 s	C++	2015-06-29 21:01:15
3	Hidden user	0.01 s	C++	2015-09-11 05:17:25
4	Neal Zane	0.01 s	C++	2015-12-21 01:07:03
5	Syx Pek	0.01 s	C++	2016-01-29 13:43:36
6	Valeriu Motroi	0.01 s	C++	2016-04-26 08:29:22
7	Raveen de Silva	0.01 s	C++	2016-07-03 00:49:51
8	Ranit Debnath Akash	0.01 s	C++	2016-09-23 21:25:05
9	Wen Li Looi	0.01 s	C++	2016-10-20 01:25:21
10	Andree Kaba	0.01 s	C++	2016-11-12 00:20:58

#	User	Runtime	Language	Date
1	César Armada	0.10 s	Go	2019-12-17 23:17:28
2	maria	0.10 s	Go	2019-12-17 23:19:12
3	Nathan Lee	0.10 s	Go	2025-09-06 21:13:03

#	User	Runtime	Language	Date
1	Hidden user	0.17 s	Java	2017-01-29 12:01:40
2	Joachim Borup	0.17 s	Java	2023-02-06 23:18:34
3	Leon Wang	0.17 s	Java	2024-09-01 01:03:47
4	Jan Štola	0.19 s	Java	2015-06-10 08:59:58
5	Khánh Nguyễn Tiến	0.19 s	Java	2019-09-23 03:59:35
6	Eric Xiao	0.19 s	Java	2022-01-20 05:32:41
7	Basheer Samsam	0.20 s	Java	2020-01-23 12:22:56
8	Hidden user	0.20 s	Java	2021-10-06 21:23:10
9	Nguyễn Hùng Cường	0.21 s	Java	2019-09-23 03:25:53
10	Jack Fang	0.21 s	Java	2024-08-28 02:43:59

#	User	Runtime	Language	Date
1	Stephanie Keck	0.12 s	JavaScript (Node.js)	2020-02-15 23:58:27
2	Samuel Högfeldt	0.37 s	JavaScript (Node.js)	2022-07-09 12:03:15

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.06 s	JavaScript (SpiderMonkey)	2023-09-09 20:10:19
2	Bjørn Chr. Soltvedt	0.13 s	JavaScript (SpiderMonkey)	2023-02-21 22:52:45

#	User	Runtime	Language	Date
1	Hidden user	0.41 s	Kotlin	2020-02-15 12:02:24
2	Johnny Baloney	0.44 s	Kotlin	2022-01-10 11:57:40
3	Mikael Hedin	0.52 s	Kotlin	2017-11-19 12:53:01
4	Phường Lên	0.73 s	Kotlin	2020-02-18 01:28:39
5	Adam Koprowski	0.77 s	Kotlin	2020-08-24 08:55:10

#	User	Runtime	Language	Date
1	Diego Sebastian Pacheco Ferrel	0.03 s	PHP	2024-04-19 01:18:05

#	User	Runtime	Language	Date
1	Frederik Højholt	0.12 s	Python 2	2016-07-05 20:43:20
2	Andrew Bortnikov	0.13 s	Python 2	2017-01-29 22:01:56
3	Yan Kalchevsky	0.16 s	Python 2	2017-01-29 13:00:13
4	Yupeng Gu	0.20 s	Python 2	2018-05-02 09:16:37
5	Matt Bonsall	0.21 s	Python 2	2016-10-12 16:31:28
6	Ali Ibrahim	0.22 s	Python 2	2016-09-27 23:33:13
7	Jingyi Ni	0.22 s	Python 2	2017-10-11 22:43:33
8	Haggai Liu	0.24 s	Python 2	2017-04-19 08:08:58

#	User	Runtime	Language	Date
1	Petr	0.06 s	Python 3	2025-06-24 19:53:46
2	Avery	0.06 s	Python 3	2025-07-16 00:26:22
3	Jia Li	0.06 s	Python 3	2025-09-19 02:57:43
4	Russell	0.06 s	Python 3	2025-09-21 09:26:05
5	조은별	0.06 s	Python 3	2026-03-15 11:36:41
6	Torres Torres Mejía	0.07 s	Python 3	2024-09-17 22:45:15
7	Sami Melhem	0.07 s	Python 3	2025-01-23 19:05:48
8	Keshav Dharshan	0.07 s	Python 3	2025-01-24 17:44:41
9	Yasir Yilmazcoban	0.07 s	Python 3	2025-01-25 00:25:22
10	Hidden user	0.07 s	Python 3	2025-01-26 05:25:01

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-05-17 13:22:55
2	Egor Kulikov	0.01 s	Rust	2026-01-20 13:55:32
3	Pahlevi Fikri Auliya	0.07 s	Rust	2020-10-29 22:49:19
4	Chaoyi Yin	0.08 s	Rust	2019-01-14 21:17:15
5	Mikail Khan	0.08 s	Rust	2022-01-22 03:27:01
6	Hidden user	0.08 s	Rust	2022-07-12 08:55:21
7	Hidden user	0.08 s	Rust	2024-06-30 21:28:07
8	Xiu-Heng Hua	0.08 s	Rust	2025-07-08 09:10:58
9	Lukas Dutrieux	0.08 s	Rust	2025-09-04 14:36:41
10	Omar Saber Talaat Abddelrahman	0.08 s	Rust	2025-09-27 23:48:47

#	User	Length	Language	Date
1	Raymond Yang	611	C	2020-01-08 22:05:25
2	Mirel Cosulschi	800	C	2025-01-02 15:42:39
3	노경덕	826	C	2025-03-12 01:53:02
4	김현수	835	C	2025-03-11 07:34:08
5	임시우	842	C	2026-03-12 10:39:57
6	Adrien Coulier	858	C	2016-11-16 22:37:34
7	Jechan An	886	C	2026-03-12 10:30:27
8	노창준	898	C	2025-03-12 06:28:58
9	양장범	905	C	2026-03-15 14:33:24
10	한유진/인공지능학과	920	C	2026-03-11 04:33:56

#	User	Length	Language	Date
1	samvid mistry	2066	C#	2024-12-29 09:36:20
2	Moo	3693	C#	2017-07-22 11:28:56
3	Marek	4099	C#	2016-11-02 19:32:02
4	Andrzej Krajniak	4561	C#	2016-11-02 18:28:50

#	User	Length	Language	Date
1	Utkarsh Agrawal	504	C++	2019-03-13 06:29:45
2	Syx Pek	515	C++	2016-01-29 13:43:36
3	Daner Mendoza	526	C++	2023-04-12 20:48:27
4	Chase Hinesman	562	C++	2019-01-25 22:55:09
5	Francesco Milizia	572	C++	2017-08-04 14:06:45
6	Jan Christian Blaise Cruz	575	C++	2018-12-18 21:30:19
7	Abhishek Singh	575	C++	2019-12-12 11:00:33
8	Geosef Viktor C. Uy	575	C++	2020-03-12 04:52:37
9	Leonardo Blanger	585	C++	2020-10-04 16:55:34
10	Fabio Giovanazzi	592	C++	2021-11-22 16:32:13

#	User	Length	Language	Date
1	César Armada	1064	Go	2019-12-17 23:17:28
2	maria	1212	Go	2019-12-17 23:19:12
3	Nathan Lee	1723	Go	2025-09-06 21:13:03

#	User	Length	Language	Date
1	Yeung Man Tsung	813	Java	2022-07-06 13:30:04
2	Quan Chau	845	Java	2017-08-11 13:03:16
3	April Chao	940	Java	2019-10-01 18:55:02
4	Benjamin Laurence Erickson	976	Java	2016-09-14 15:50:18
5	Yifan Sun	1122	Java	2021-01-23 02:32:22
6	Doug Goodman	1196	Java	2016-09-17 14:27:46
7	Ryan Chang	1197	Java	2021-10-07 04:43:32
8	Joachim Borup	1242	Java	2023-02-06 22:38:57
9	Michael Stephen Skalak	1256	Java	2017-05-08 15:01:10
10	Menno VanDiermen	1272	Java	2016-09-15 04:55:26

#	User	Length	Language	Date
1	Samuel Högfeldt	1756	JavaScript (Node.js)	2022-07-09 12:03:15
2	Stephanie Keck	11485	JavaScript (Node.js)	2020-02-15 23:58:27

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	797	JavaScript (SpiderMonkey)	2023-02-21 22:52:45
2	Christian Pilegaard Cederquist	801	JavaScript (SpiderMonkey)	2023-09-09 20:10:19

#	User	Length	Language	Date
1	Adam Koprowski	1178	Kotlin	2020-08-24 08:55:10
2	Phường Lên	1464	Kotlin	2020-02-18 01:28:39
3	Johnny Baloney	1521	Kotlin	2022-01-10 11:49:51
4	Hidden user	1773	Kotlin	2020-02-15 12:02:24
5	Mikael Hedin	2008	Kotlin	2017-11-19 12:53:01

#	User	Length	Language	Date
1	Diego Sebastian Pacheco Ferrel	945	PHP	2024-04-19 01:18:05

#	User	Length	Language	Date
1	Matt Bonsall	402	Python 2	2016-10-12 16:31:28
2	Haggai Liu	404	Python 2	2017-04-19 08:08:58
3	Yupeng Gu	743	Python 2	2018-05-02 09:16:37
4	Ali Ibrahim	911	Python 2	2016-09-27 23:33:13
5	Frederik Højholt	962	Python 2	2016-07-05 20:43:20
6	Yan Kalchevsky	1069	Python 2	2017-01-29 13:00:13
7	Jingyi Ni	1418	Python 2	2017-10-11 22:43:33
8	Andrew Bortnikov	1696	Python 2	2017-01-29 22:01:56

#	User	Length	Language	Date
1	Avery	224	Python 3	2025-07-16 00:20:41
2	Benjamin Z White	258	Python 3	2023-06-08 21:06:32
3	Kevin Yu	298	Python 3	2023-09-12 14:49:26
4	Hidden user	340	Python 3	2021-05-02 15:27:51
5	Nicholas Russell Saerang	438	Python 3	2023-09-13 08:57:00
6	Thibault Raffaillac	451	Python 3	2020-02-19 20:53:55
7	Clement Oh	534	Python 3	2024-01-01 14:33:30
8	Kristoffer Højelse	544	Python 3	2023-02-07 15:35:05
9	Alfred Olsson	552	Python 3	2019-07-29 08:37:25
10	Charles Chen	558	Python 3	2024-09-05 23:31:17

#	User	Length	Language	Date
1	Chaoyi Yin	1293	Rust	2019-01-14 21:17:15
2	Mikail Khan	1429	Rust	2022-01-22 03:28:25
3	Hidden user	1457	Rust	2024-06-30 21:32:09
4	Hidden user	1774	Rust	2022-07-12 08:55:21
5	Lukas Dutrieux	2040	Rust	2025-09-04 14:36:41
6	Xiu-Heng Hua	2057	Rust	2025-07-08 09:20:35
7	Reis Faar	2066	Rust	2023-06-02 21:53:10
8	Pahlevi Fikri Auliya	2640	Rust	2020-10-29 22:49:19
9	Omar Saber Talaat Abddelrahman	18766	Rust	2025-09-27 23:48:47
10	Egor Kulikov	22209	Rust	2026-01-20 13:55:32

Solution running time distribution