Problem A
Lost Lineup — Problem Statistics

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Submissions	7288
Accepted submissions	4385
Submission ratio	60.17%
Authors	3955
Full solves [?]	3741
Full solve Ratio	94.59%

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-04-27 10:29:02

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-09-05 16:01:11
2	Thomas Feld	0.07 s	Bash	2023-09-28 15:55:36
3	Chenzhang Hu	0.08 s	Bash	2023-09-26 16:02:07

#	User	Runtime	Language	Date
1	Mads Jespersen	0.02 s	C#	2019-10-27 23:03:05
2	Henrik Hallbert	0.02 s	C#	2019-10-30 21:25:18
3	Thomas Norris	0.02 s	C#	2019-11-01 17:10:05
4	Patrik Rydén	0.02 s	C#	2019-11-03 14:37:58
5	Michael Palkovics	0.02 s	C#	2019-11-10 12:48:44
6	Sebastian Gielinger	0.02 s	C#	2019-12-03 10:12:48
7	Max Tegnebo	0.02 s	C#	2019-12-12 17:12:54
8	Andreas Carlsson	0.02 s	C#	2020-04-04 13:51:42
9	Joshua Jacoby	0.02 s	C#	2020-04-07 05:10:11
10	Abhishek Gupta	0.02 s	C#	2020-08-17 18:40:59

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Common Lisp	2020-03-13 13:30:44
2	David Cawthon	0.01 s	Common Lisp	2020-07-17 03:52:18

#	User	Runtime	Language	Date
1	Jesper Bengtson	0.05 s	F#	2021-02-06 10:36:09
2	Hidden user	0.05 s	F#	2021-02-09 14:57:49
3	Patrick Bahr	0.05 s	F#	2021-02-19 21:14:33
4	Jacob Harris Cryer Kragh	0.05 s	F#	2022-06-08 19:35:28

#	User	Runtime	Language	Date
1	Husain Satan	0.00 s	Go	2023-12-04 04:18:59
2	Hidden user	0.02 s	Go	2023-04-21 00:37:59
3	Fahmi Ardhianto	0.08 s	Go	2020-08-26 08:38:15
4	Krzysztof Gibuła	0.08 s	Go	2021-04-15 21:10:10
5	Norbert Voelker	0.08 s	Go	2021-04-17 22:47:38
6	Hidden user	0.08 s	Go	2021-12-17 09:47:25

#	User	Runtime	Language	Date
1	Nicholas Marsh	0.00 s	Haskell	2022-09-19 13:54:53
2	Sondre Lunde	0.00 s	Haskell	2022-11-10 08:42:13
3	Sebastian Banert	0.00 s	Haskell	2023-09-18 18:21:14
4	Mason Barnhill	0.00 s	Haskell	2023-10-19 00:07:38
5	Rudy Matela	0.00 s	Haskell	2024-05-03 10:52:05
6	Joe Little	0.00 s	Haskell	2024-09-20 12:42:43
7	Asbjørn Olav Orvedal	0.00 s	Haskell	2024-10-10 12:46:51
8	Bernardo Brust	0.00 s	Haskell	2025-07-28 23:46:31
9	Hidden user	0.01 s	Haskell	2019-10-27 10:25:55
10	Johan Adamsson	0.01 s	Haskell	2020-02-20 20:03:55

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-01-21 09:17:26
2	Lee Heng Sheng	0.05 s	Java	2024-04-28 04:43:53
3	Felix Andersen	0.06 s	Java	2020-07-18 11:24:21
4	Sven Rönnbäck	0.06 s	Java	2021-12-24 11:57:11
5	Zhou Long	0.06 s	Java	2022-07-26 21:43:09
6	Rowan	0.06 s	Java	2022-09-19 22:41:53
7	Vashista Basava	0.06 s	Java	2024-08-15 12:44:45
8	CUX "INDIO" PRADA	0.06 s	Java	2024-10-08 21:22:10
9	Tarek	0.06 s	Java	2025-09-11 06:20:12
10	Theodoric Keith Lim	0.07 s	Java	2020-05-30 06:50:53

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2024-08-22 23:52:15
2	Elias Murcray	0.04 s	JavaScript (Node.js)	2025-10-25 00:10:17
3	Redho Darmawan	0.05 s	JavaScript (Node.js)	2024-04-23 02:51:23
4	Hidden user	0.40 s	JavaScript (Node.js)	2019-11-02 22:30:07
5	Chris Wong	0.41 s	JavaScript (Node.js)	2021-02-03 00:17:27
6	Nick Ivanov	0.42 s	JavaScript (Node.js)	2020-03-07 01:46:53
7	John	0.42 s	JavaScript (Node.js)	2020-07-28 05:21:07
8	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-04 12:16:35
9	Antoine Bauri	0.42 s	JavaScript (Node.js)	2021-02-16 18:38:37

#	User	Runtime	Language	Date
1	Natali Kim	0.02 s	JavaScript (SpiderMonkey)	2020-09-30 02:57:18
2	Lucas Silva	0.02 s	JavaScript (SpiderMonkey)	2020-09-30 02:57:48
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-11-09 16:39:07
4	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-06-07 18:27:04
5	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-06-16 21:06:07
6	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-10-27 21:18:56
7	Nicklas Utgaard	0.03 s	JavaScript (SpiderMonkey)	2019-10-31 20:23:30
8	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-01-17 09:29:28

#	User	Runtime	Language	Date
1	Noszály Csaba	0.39 s	Julia	2025-02-23 14:54:00
2	Danny Robinson	0.65 s	Julia	2023-09-05 15:47:24
3	Timothy Gaede	0.67 s	Julia	2024-03-31 06:50:55

#	User	Runtime	Language	Date
1	Sam Keyser	0.12 s	Kotlin	2023-02-24 21:21:09
2	Jacob Huebner	0.13 s	Kotlin	2021-10-13 21:01:38
3	Nicholas Johnson	0.13 s	Kotlin	2021-10-14 23:10:31
4	Marit van Dijk	0.15 s	Kotlin	2021-09-16 20:34:56
5	Hidden user	0.17 s	Kotlin	2019-12-20 12:09:35
6	Dayan Ruben Gonzalez	0.17 s	Kotlin	2020-10-07 19:40:34
7	Ola Sundell	0.18 s	Kotlin	2020-08-19 16:49:44
8	Adam Rankin	0.19 s	Kotlin	2023-08-28 06:28:00
9	Terairk	0.19 s	Kotlin	2023-11-27 12:17:42
10	Ravisai Tiruvuri	0.19 s	Kotlin	2024-03-12 10:12:26

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	OCaml	2023-12-28 17:41:46

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-12-19 21:16:07
2	David Connolly	0.00 s	Pascal	2022-04-05 14:32:35
3	Hobert Ho	0.00 s	Pascal	2022-07-21 12:37:12

#	User	Runtime	Language	Date
1	Jonas Lindenskov Nielsen	0.01 s	PHP	2019-10-28 21:34:01
2	陳建宏	0.01 s	PHP	2021-06-11 18:33:05
3	Renate	0.01 s	PHP	2021-07-07 03:16:36
4	Andre Wahyudi	0.01 s	PHP	2022-10-18 06:38:57

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-18 11:42:58
2	Thomas Feld	0.03 s	Python 2	2019-10-30 13:09:51
3	Johan Lyts	0.03 s	Python 2	2019-10-31 22:15:40
4	Andreas Björklund	0.03 s	Python 2	2019-11-16 13:27:31
5	Hidden user	0.03 s	Python 2	2019-11-22 02:10:45
6	Conor McCauley	0.03 s	Python 2	2019-11-25 00:36:41
7	Justin Su	0.03 s	Python 2	2019-11-28 17:19:43
8	Guan Yang Ze	0.03 s	Python 2	2020-03-18 11:09:47
9	Maj Stenmark	0.03 s	Python 2	2020-03-29 19:11:53
10	Andrei Stoica	0.03 s	Python 2	2020-07-29 23:08:51

#	User	Runtime	Language	Date
1	Steven Hwang	0.02 s	Python 3	2019-10-26 18:08:10
2	Charles Hanson	0.02 s	Python 3	2019-10-26 18:09:02
3	Grayden Price	0.02 s	Python 3	2019-10-26 18:14:28
4	Jordan Newport	0.02 s	Python 3	2019-10-26 18:16:39
5	Adam Beziou	0.02 s	Python 3	2019-10-26 18:17:38
6	Mahmud Azam	0.02 s	Python 3	2019-10-26 18:21:52
7	Kieran Lewis	0.02 s	Python 3	2019-10-26 18:24:17
8	Jason Cannon	0.02 s	Python 3	2019-10-26 18:24:40
9	Aaron Chan	0.02 s	Python 3	2019-10-26 18:30:08
10	Johnathon Henke	0.02 s	Python 3	2019-10-26 18:31:49

#	User	Runtime	Language	Date
1	Donald Dong	0.05 s	Ruby	2021-02-23 06:22:28
2	Loke Gustafsson	0.05 s	Ruby	2021-02-24 10:30:13
3	Troy Sornson	0.05 s	Ruby	2022-01-20 00:20:26
4	TobiasZ	0.05 s	Ruby	2022-01-25 21:36:07
5	Thomas Feld	0.06 s	Ruby	2022-11-01 23:29:09
6	Eugen Neagoe	0.06 s	Ruby	2023-06-08 15:06:06
7	Russell Ng	0.07 s	Ruby	2025-05-24 09:32:28

#	User	Length	Language	Date
1	Thomas Feld	38	APL	2023-04-27 10:31:48

#	User	Length	Language	Date
1	Chenzhang Hu	38	Bash	2025-09-12 21:40:48
2	Thomas Feld	47	Bash	2023-09-28 15:55:36
3	Danny Robinson	63	Bash	2023-09-05 16:01:11

#	User	Length	Language	Date
1	Martin Blom	114	C	2023-10-27 11:58:10
2	Eduardo Núñez	156	C	2024-03-17 18:22:56
3	Yoav Farid Pozos	229	C	2021-08-20 01:49:55
4	Miranda Bueno Fatima Yolanda	232	C	2021-08-22 17:30:01
5	Marina	234	C	2024-04-16 18:09:22
6	Alexandru Onofrei	239	C	2024-01-11 12:12:31
7	Adrian Chiriac	240	C	2023-12-22 14:43:02
8	Walter Arredondo	254	C	2025-01-10 03:45:03
9	Ximun Castoreo	256	C	2020-07-06 13:59:16
10	Juan Trilnardo Defrin	259	C	2020-09-18 13:31:46

#	User	Length	Language	Date
1	Anthony Ye	377	C#	2023-03-12 17:51:34
2	Thomas Norris	429	C#	2019-11-01 17:10:05
3	Esty Crow	438	C#	2023-03-12 17:39:02
4	Tran Hoang Phuc	567	C#	2021-03-30 11:14:23
5	Sebastian Sternberg	594	C#	2021-02-02 18:32:59
6	Göran Andersson	640	C#	2022-05-08 14:15:01
7	Victor Hultén Mattsson	647	C#	2022-02-08 12:08:45
8	Sebastian Gielinger	670	C#	2019-12-03 10:12:48
9	Eric Weiss	677	C#	2022-06-22 21:41:30
10	Patrik Rydén	696	C#	2019-11-03 14:37:58

#	User	Length	Language	Date
1	Joash Ong	141	C++	2024-06-12 06:04:37
2	Hakan Kjellerstrand	174	C++	2025-02-28 20:47:29
3	Jonas Rouven Schoenauer	185	C++	2023-10-23 19:44:35
4	高一3薛年成	188	C++	2024-06-21 14:40:08
5	huangshiyu0318	191	C++	2023-05-26 03:42:02
6	李昕	202	C++	2022-10-16 08:25:16
7	黃子恩	202	C++	2022-11-04 17:25:13
8	岑。・ω・。	206	C++	2023-11-15 12:48:46
9	蘇子甯J106 25	206	C++	2025-06-14 04:00:33
10	陳柏余	209	C++	2022-10-16 05:10:21

#	User	Length	Language	Date
1	Hidden user	268	Common Lisp	2020-03-13 13:30:44
2	David Cawthon	381	Common Lisp	2020-07-17 03:52:18

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	418	F#	2022-06-08 19:35:28
2	Patrick Bahr	1887	F#	2021-02-19 21:14:33
3	Jesper Bengtson	2212	F#	2025-02-07 15:01:07
4	Hidden user	3802	F#	2021-02-09 14:57:49

#	User	Length	Language	Date
1	Fahmi Ardhianto	313	Go	2020-08-26 08:38:15
2	Hidden user	408	Go	2021-12-17 09:47:25
3	Krzysztof Gibuła	422	Go	2021-04-15 21:10:10
4	Hidden user	483	Go	2023-04-21 00:37:59
5	Husain Satan	583	Go	2023-12-04 04:18:59
6	Norbert Voelker	792	Go	2021-04-17 22:47:38

#	User	Length	Language	Date
1	Rudy Matela	105	Haskell	2024-05-03 10:52:05
2	Sebastian Banert	177	Haskell	2023-09-18 18:21:14
3	Steinar Simonnes	183	Haskell	2024-01-19 14:22:45
4	Mason Barnhill	187	Haskell	2023-10-19 00:07:12
5	Maya Saietz	202	Haskell	2020-11-13 16:21:24
6	Li Jun	207	Haskell	2023-06-21 11:16:49
7	Scott Dauer	218	Haskell	2022-04-07 03:34:49
8	Jan Hrček	241	Haskell	2020-10-19 10:46:49
9	Sondre Lunde	250	Haskell	2022-11-10 08:42:13
10	Asbjørn Olav Orvedal	265	Haskell	2024-10-10 12:46:51

#	User	Length	Language	Date
1	Hidden user	272	Java	2023-09-20 21:47:20
2	Eric Xu	313	Java	2020-08-14 22:28:55
3	Brennan Cleland	321	Java	2022-11-20 07:14:24
4	Lim Ting Kai	339	Java	2024-01-10 03:47:00
5	Prakash Varman	346	Java	2022-12-29 09:25:06
6	yixu liu	357	Java	2023-09-25 00:00:04
7	Anton Sandin	372	Java	2022-05-18 15:26:29
8	Aidan Briggs	376	Java	2022-02-17 15:57:29
9	Nate Alden	378	Java	2020-01-20 06:59:24
10	Anita Furtado	379	Java	2021-10-10 06:02:55

#	User	Length	Language	Date
1	Elias Murcray	336	JavaScript (Node.js)	2025-10-25 00:10:17
2	Hidden user	421	JavaScript (Node.js)	2019-11-02 22:30:07
3	Antoine Bauri	433	JavaScript (Node.js)	2021-02-16 18:38:37
4	Chris Wong	509	JavaScript (Node.js)	2021-02-03 00:17:27
5	Redho Darmawan	702	JavaScript (Node.js)	2024-04-23 02:51:23
6	Hidden user	708	JavaScript (Node.js)	2023-08-26 01:35:13
7	Nick Ivanov	815	JavaScript (Node.js)	2020-03-07 01:46:53
8	Andoko Chandra	931	JavaScript (Node.js)	2020-10-04 12:16:35
9	John	1013	JavaScript (Node.js)	2020-07-28 05:21:07

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	76	JavaScript (SpiderMonkey)	2022-11-09 16:43:08
2	Jimmy Gustafsson	116	JavaScript (SpiderMonkey)	2024-06-16 21:06:07
3	Peter Menyes	168	JavaScript (SpiderMonkey)	2021-01-17 09:29:28
4	Bjørn Chr. Soltvedt	215	JavaScript (SpiderMonkey)	2019-10-27 21:18:56
5	Natali Kim	242	JavaScript (SpiderMonkey)	2020-09-30 02:57:18
6	Lucas Silva	244	JavaScript (SpiderMonkey)	2020-09-30 02:57:48
7	Zach Tschetter	313	JavaScript (SpiderMonkey)	2023-06-07 18:27:04
8	Nicklas Utgaard	424	JavaScript (SpiderMonkey)	2019-10-31 20:23:30

#	User	Length	Language	Date
1	Danny Robinson	97	Julia	2023-09-05 16:23:57
2	Noszály Csaba	120	Julia	2025-02-23 14:54:00
3	Timothy Gaede	926	Julia	2024-03-31 06:50:55

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	264	Kotlin	2020-10-07 19:40:34
2	Adam Koprowski	407	Kotlin	2020-09-12 11:17:32
3	Johnny Baloney	412	Kotlin	2021-09-15 23:19:34
4	Troy Warmboe	416	Kotlin	2020-02-06 23:59:30
5	Adam Rankin	608	Kotlin	2023-08-28 06:28:00
6	Sergey Jakobsen	611	Kotlin	2021-06-04 11:55:27
7	Ola Sundell	643	Kotlin	2020-08-19 16:49:44
8	Marit van Dijk	668	Kotlin	2021-09-16 20:34:56
9	Hidden user	679	Kotlin	2019-12-20 12:09:35
10	Sam Keyser	745	Kotlin	2023-02-24 21:21:09

#	User	Length	Language	Date
1	Hidden user	415	OCaml	2023-12-28 17:41:46

#	User	Length	Language	Date
1	Ingemar Ragnemalm	264	Pascal	2019-12-19 21:16:07
2	David Connolly	290	Pascal	2022-04-05 14:32:35
3	Hobert Ho	376	Pascal	2022-07-21 12:37:12

#	User	Length	Language	Date
1	Jonas Lindenskov Nielsen	376	PHP	2019-10-28 21:34:01
2	Renate	420	PHP	2021-07-07 03:16:36
3	Andre Wahyudi	489	PHP	2022-10-18 06:38:57
4	陳建宏	1170	PHP	2021-06-11 18:33:05

#	User	Length	Language	Date
1	Andreas Björklund	124	Python 2	2019-11-16 13:27:31
2	Thomas Feld	128	Python 2	2019-10-30 13:09:51
3	Jesper Öqvist	130	Python 2	2019-10-30 16:26:27
4	Conor McCauley	134	Python 2	2019-11-25 00:36:41
5	Hidden user	139	Python 2	2019-11-22 02:10:45
6	Lars Åström	148	Python 2	2019-10-30 09:13:31
7	Guan Yang Ze	157	Python 2	2020-03-18 11:09:47
8	Johan Lyts	174	Python 2	2019-10-31 22:15:40
9	Yanmarshus Bachtiar	185	Python 2	2020-08-18 05:32:35
10	Justin Su	190	Python 2	2019-11-28 17:19:43

#	User	Length	Language	Date
1	Clement Oh	78	Python 3	2023-06-08 18:47:52
2	Dennis Magnusson	79	Python 3	2019-10-28 13:19:48
3	Thomas Meeks	88	Python 3	2022-10-02 02:57:09
4	Charles Ancheta	88	Python 3	2023-03-24 04:53:39
5	Morten Clausen	90	Python 3	2022-10-12 17:06:46
6	Vinh Buu Tang	94	Python 3	2024-08-02 07:53:21
7	Nguyên Khôi Đỗ	94	Python 3	2024-12-27 20:52:51
8	Adam Levav	95	Python 3	2023-01-24 00:33:20
9	Suus Brommer	104	Python 3	2022-06-27 09:54:04
10	Shashank Bhatt	104	Python 3	2023-01-29 05:37:54

#	User	Length	Language	Date
1	Thomas Feld	59	Ruby	2023-01-04 13:17:50
2	Russell Ng	67	Ruby	2025-05-24 09:32:28
3	Eugen Neagoe	142	Ruby	2023-06-08 15:06:06
4	Donald Dong	170	Ruby	2021-02-23 06:22:28
5	Loke Gustafsson	181	Ruby	2021-02-24 10:30:13
6	Troy Sornson	238	Ruby	2022-01-20 00:20:26
7	TobiasZ	251	Ruby	2022-01-25 21:36:07

#	User	Length	Language	Date
1	Vincent Lagerros	378	Rust	2024-12-05 20:40:18
2	Thomas	444	Rust	2022-11-22 20:45:52
3	Oskar Strömberg	520	Rust	2020-10-23 07:03:00
4	Kevin Wang	540	Rust	2021-03-25 21:52:36
5	Théo Neveu	559	Rust	2021-03-25 22:22:09
6	Kok Dith	570	Rust	2021-08-06 11:33:22
7	Baptiste Posseme	571	Rust	2021-03-26 02:54:26
8	David Rasch	578	Rust	2020-11-06 10:51:19
9	Ratel Alexandre	579	Rust	2021-03-23 20:49:30
10	Bas Dirks	592	Rust	2021-12-30 16:11:53

Solution running time distribution