Problem A
Shuffling Along — Problem Statistics

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Submissions	2197
Accepted submissions	947
Submission ratio	43.10%
Authors	896
Accepted authors	820
Author ratio	91.52%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.01 s	Bash	2023-10-19 16:10:46

#	User	Runtime	Language	Date
1	Walter Mao	0.00 s	C	2017-04-30 05:41:53
2	Brendon Mcebisi Tankwa	0.00 s	C	2017-05-03 06:28:43
3	Stéphane	0.00 s	C	2017-09-14 00:33:34
4	Olav Røthe Bakken	0.00 s	C	2017-10-26 14:35:51
5	Steven Rachman	0.00 s	C	2018-06-23 19:51:01
6	Sambit Palit	0.00 s	C	2020-10-27 22:09:11
7	Jing Wang	0.00 s	C	2021-10-20 09:53:15
8	Mikael K Eriksson	0.00 s	C	2022-02-22 08:12:20
9	sataapon naowat	0.00 s	C	2023-01-22 02:38:10

#	User	Runtime	Language	Date
1	Sampath Kumar	0.02 s	C#	2016-09-14 22:40:52
2	Chi Tran	0.02 s	C#	2020-12-31 10:05:01
3	Wendel Fabian Chinsamy	0.03 s	C#	2019-12-13 11:34:58
4	Fredrik Jacobsson	0.06 s	C#	2024-02-05 00:43:23

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Common Lisp	2019-07-20 22:36:03

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.10 s	F#	2023-01-30 14:44:18

#	User	Runtime	Language	Date
1	Ola Dahl	0.02 s	Go	2023-01-31 20:01:46
2	Norbert Voelker	0.08 s	Go	2021-08-22 21:18:38

#	User	Runtime	Language	Date
1	Aurélien Pepin	0.01 s	Haskell	2019-10-03 09:41:34
2	Li Jun	0.01 s	Haskell	2023-06-22 13:48:58
3	Steinar Simonnes	0.01 s	Haskell	2025-06-26 12:29:10
4	Frederik Højholt	0.06 s	Haskell	2016-03-03 21:03:14
5	Simon Vandel Sillesen	0.06 s	Haskell	2016-03-03 21:07:01
6	Daniel Cabral	0.14 s	Haskell	2021-10-26 21:39:56

#	User	Runtime	Language	Date
1	CUX "INDIO" PRADA	0.04 s	Java	2025-02-14 21:48:54
2	Hidden user	0.05 s	Java	2015-11-14 05:09:36
3	Simon Xue	0.05 s	Java	2016-06-11 02:03:17
4	Finn Lidbetter	0.05 s	Java	2017-02-02 03:56:48
5	Martijn Muijsers	0.05 s	Java	2017-04-30 11:14:06
6	Lee Wei Hong	0.05 s	Java	2017-12-06 15:46:16
7	Fu Jin	0.05 s	Java	2018-07-13 13:36:54
8	Issa Issack	0.05 s	Java	2025-01-30 21:55:22
9	Luu Nhat Phi	0.06 s	Java	2015-11-14 04:59:49
10	Trần Công Duy	0.06 s	Java	2015-11-14 07:27:17

#	User	Runtime	Language	Date
1	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-03-28 11:21:10
2	Bjørn Chr. Soltvedt	0.04 s	JavaScript (SpiderMonkey)	2016-07-28 11:03:03

#	User	Runtime	Language	Date
1	Noszály Csaba	0.44 s	Julia	2025-03-24 09:49:48
2	Timothy Gaede	0.56 s	Julia	2024-07-10 12:28:56

#	User	Runtime	Language	Date
1	Ashish Singh	0.15 s	Kotlin	2023-01-24 07:20:50
2	Ravisai Tiruvuri	0.19 s	Kotlin	2024-03-15 07:37:56
3	Johnny Baloney	0.24 s	Kotlin	2021-10-19 16:37:15
4	Adam Koprowski	0.28 s	Kotlin	2020-10-14 22:58:45
5	Adam Rankin	0.32 s	Kotlin	2023-08-30 04:11:04

#	User	Runtime	Language	Date
1	Sander de Haan	0.07 s	Lua	2025-05-07 16:17:24

#	User	Runtime	Language	Date
1	Asger Hautop Drewsen	0.03 s	Python 2	2015-11-19 00:52:43
2	Jesper Öqvist	0.03 s	Python 2	2018-11-06 20:52:15
3	Ethan Dickey	0.03 s	Python 2	2019-03-20 18:06:51
4	Greg Hamerly	0.03 s	Python 2	2019-03-20 18:07:41
5	Lars Åström	0.03 s	Python 2	2019-06-21 00:41:39
6	Johan Lyts	0.03 s	Python 2	2020-05-05 21:18:20
7	Måns Magnusson	0.04 s	Python 2	2019-05-28 23:04:11
8	Yanmarshus Bachtiar	0.05 s	Python 2	2020-09-07 03:04:28
9	Haggai Liu	0.06 s	Python 2	2017-05-23 06:46:16
10	Mohammed Daudali	0.06 s	Python 2	2017-10-10 23:50:12

#	User	Runtime	Language	Date
1	Cheng Hang	0.02 s	Python 3	2018-01-17 09:49:18
2	James Hamm	0.02 s	Python 3	2018-05-10 14:13:35
3	Michael Wong	0.02 s	Python 3	2019-07-08 04:22:40
4	Oskar Haarklou Veileborg	0.03 s	Python 3	2017-10-02 21:24:34
5	Z S	0.03 s	Python 3	2019-04-30 23:28:43
6	Jason Wong	0.04 s	Python 3	2019-07-09 03:07:24
7	Joshua Cepeda	0.04 s	Python 3	2019-09-27 16:52:24
8	Ziyang Li	0.04 s	Python 3	2019-10-27 21:53:55
9	Jason Cannon	0.04 s	Python 3	2019-12-17 18:06:37
10	Tony Rozzi	0.04 s	Python 3	2022-09-08 23:10:58

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-01-11 11:12:22

#	User	Runtime	Language	Date
1	Chun Mun Soon	0.00 s	Rust	2021-07-19 04:02:55
2	Hidden user	0.00 s	Rust	2022-01-13 21:04:16
3	Bas Dirks	0.00 s	Rust	2022-06-07 18:30:43
4	jaswanth	0.00 s	Rust	2024-02-28 14:05:46

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 10:59:57

#	User	Length	Language	Date
1	Steven Rachman	802	C	2018-06-23 19:51:01
2	Olav Røthe Bakken	1028	C	2017-10-26 14:35:51
3	Sambit Palit	1039	C	2020-10-27 22:09:11
4	sataapon naowat	1616	C	2023-01-22 02:38:10
5	Brendon Mcebisi Tankwa	1648	C	2017-05-03 06:28:43
6	Jing Wang	1813	C	2021-10-20 09:53:15
7	Stéphane	1920	C	2017-09-14 00:33:34
8	Walter Mao	2747	C	2017-04-30 05:41:53
9	Mikael K Eriksson	34312	C	2022-02-22 08:12:20

#	User	Length	Language	Date
1	Wendel Fabian Chinsamy	2187	C#	2019-12-13 11:38:16
2	Fredrik Jacobsson	2203	C#	2024-02-05 00:43:23
3	Chi Tran	4177	C#	2020-12-31 10:05:01
4	Sampath Kumar	5477	C#	2016-09-14 22:40:52

#	User	Length	Language	Date
1	Jonathon Arbaugh	365	C++	2017-05-06 19:52:14
2	Fernando Gonzalez Gutierrez	403	C++	2022-09-11 18:47:01
3	Hidden user	408	C++	2023-08-30 12:14:42
4	Anna Roczek	434	C++	2023-07-06 15:09:28
5	Mohsen Mahroos	441	C++	2024-05-24 04:51:54
6	William Gan	475	C++	2018-03-27 14:24:32
7	Spynder	481	C++	2023-08-22 18:25:34
8	Rafael Bardisa Rodes	482	C++	2023-01-29 16:51:38
9	William Taylor-Melanson	525	C++	2020-07-25 03:46:01
10	Leonardo Blanger	587	C++	2020-08-25 19:57:32

#	User	Length	Language	Date
1	Hidden user	1442	Common Lisp	2019-07-20 22:36:03

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	2150	F#	2023-01-30 14:44:18

#	User	Length	Language	Date
1	Norbert Voelker	1482	Go	2021-08-22 21:18:38
2	Ola Dahl	3648	Go	2023-01-31 20:01:46

#	User	Length	Language	Date
1	Aurélien Pepin	489	Haskell	2019-10-03 09:41:34
2	Steinar Simonnes	702	Haskell	2025-06-26 12:29:10
3	Li Jun	755	Haskell	2023-06-22 13:48:58
4	Daniel Cabral	1172	Haskell	2021-10-26 21:45:04
5	Frederik Højholt	1616	Haskell	2016-03-03 21:03:14
6	Simon Vandel Sillesen	1616	Haskell	2016-03-03 21:07:01

#	User	Length	Language	Date
1	William Beard	885	Java	2020-11-29 02:47:45
2	Christian Ramus	1064	Java	2023-07-02 23:29:59
3	Michael Liu	1082	Java	2018-06-18 00:48:56
4	Crystal Sharpe	1102	Java	2020-07-17 05:15:17
5	Hidden user	1107	Java	2019-04-10 23:51:58
6	Jacob Burroughs	1115	Java	2017-05-06 19:07:09
7	Quinn Minnich	1151	Java	2017-03-11 18:21:26
8	Eric Leow Yu Quan	1154	Java	2021-01-01 09:20:04
9	Doug Goodman	1159	Java	2018-04-29 15:39:50
10	Hidden user	1181	Java	2019-05-17 12:01:00

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	718	JavaScript (SpiderMonkey)	2016-07-28 11:03:03
2	Christian Cederquist	1181	JavaScript (SpiderMonkey)	2023-03-28 11:21:10

#	User	Length	Language	Date
1	Noszály Csaba	749	Julia	2025-03-24 09:49:48
2	Timothy Gaede	2106	Julia	2024-07-10 12:28:56

#	User	Length	Language	Date
1	Adam Rankin	606	Kotlin	2023-08-30 04:11:04
2	Adam Koprowski	820	Kotlin	2020-10-14 22:58:45
3	Johnny Baloney	1021	Kotlin	2021-10-19 17:06:29
4	Ashish Singh	1091	Kotlin	2023-01-24 07:20:50
5	Ravisai Tiruvuri	5150	Kotlin	2024-03-15 07:37:56

#	User	Length	Language	Date
1	Sander de Haan	1535	Lua	2025-05-07 16:26:39

#	User	Length	Language	Date
1	Johan Lyts	212	Python 2	2020-05-05 21:18:20
2	Måns Magnusson	373	Python 2	2019-05-28 23:06:25
3	Thomas Feld	384	Python 2	2019-11-20 10:37:08
4	Jesper Öqvist	492	Python 2	2018-11-06 20:52:15
5	Asger Hautop Drewsen	514	Python 2	2015-11-19 00:52:43
6	Lars Åström	545	Python 2	2019-06-21 00:41:39
7	Haggai Liu	599	Python 2	2017-05-23 06:46:16
8	Ciara Godwin	617	Python 2	2018-03-26 18:02:19
9	Oskar Haarklou Veileborg	655	Python 2	2017-10-02 21:23:18
10	Ethan Dickey	729	Python 2	2019-03-20 18:06:51

#	User	Length	Language	Date
1	Blake Herrera	74	Python 3	2022-09-12 15:48:36
2	Parker Leathers	74	Python 3	2022-09-14 19:08:16
3	Lee Isaac	158	Python 3	2022-11-10 15:07:54
4	Nicholas Russell Saerang	202	Python 3	2023-08-06 23:57:59
5	Charles Ancheta	214	Python 3	2023-03-30 07:08:57
6	Johan Lyts	246	Python 3	2020-05-06 13:58:17
7	Andreas Björklund	249	Python 3	2023-04-07 09:38:36
8	Herman Karlsson	251	Python 3	2017-02-02 22:32:47
9	Thibault Raffaillac	291	Python 3	2020-01-26 20:34:51
10	Ahmed Chamseddine	299	Python 3	2025-05-30 19:28:01

#	User	Length	Language	Date
1	Thomas Feld	67	Ruby	2023-01-11 11:44:05

#	User	Length	Language	Date
1	jaswanth	1407	Rust	2024-02-28 14:05:46
2	Bas Dirks	1409	Rust	2022-06-07 18:30:43
3	Chun Mun Soon	1761	Rust	2021-07-19 04:02:55
4	Hidden user	5623	Rust	2022-01-13 21:04:16

Solution running time distribution