Problem A
Eulerian Path — Problem Statistics

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Submissions	5001
Accepted submissions	1480
Submission ratio	29.59%
Authors	742
Full solves [?]	594
Full solve Ratio	80.05%

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	C	2017-08-04 22:38:35
2	Mirel Cosulschi	0.05 s	C	2022-11-01 20:28:56
3	Oscar Cusin	0.09 s	C	2024-02-29 16:52:16
4	Mats Linander	0.13 s	C	2006-10-11 15:55:37
5	Henrik Sjögren	0.13 s	C	2006-10-11 18:08:15

#	User	Runtime	Language	Date
1	Daniel Schemmel	0.02 s	C++	2016-10-03 00:17:08
2	Johannes Olegård	0.02 s	C++	2016-10-13 16:13:08
3	Leif Eriksson	0.03 s	C++	2018-05-30 08:55:54
4	Jay Lim	0.03 s	C++	2019-01-28 19:44:45
5	Bergur Snorrason	0.03 s	C++	2019-04-04 16:48:19
6	Eyleifur Bjarkason	0.03 s	C++	2020-11-21 16:48:26
7	Lars Hummelgren	0.04 s	C++	2017-09-25 17:21:20
8	Jonas Nockert	0.04 s	C++	2018-05-18 00:24:15
9	Sam Zhang	0.04 s	C++	2019-11-14 03:33:37
10	Ahmed Hani	0.04 s	C++	2021-02-14 20:05:13

#	User	Runtime	Language	Date
1	Hidden user	0.11 s	Common Lisp	2019-08-06 23:27:43

#	User	Runtime	Language	Date
1	Norbert Voelker	0.06 s	Go	2023-05-28 18:10:08
2	Antonio Molina Lovett	0.61 s	Go	2016-02-27 08:47:24

#	User	Runtime	Language	Date
1	Fulano de Tal	0.48 s	Haskell	2021-11-27 12:24:21

#	User	Runtime	Language	Date
1	Simon Klein	0.11 s	Java	2011-12-29 15:16:46
2	David Brink	0.22 s	Java	2017-02-05 14:36:38
3	William Fiset	0.28 s	Java	2018-06-17 19:58:35
4	Frey Naimi-Akbar	0.42 s	Java	2007-10-11 02:19:06
5	Simon Habtemikael	0.43 s	Java	2007-10-16 17:29:31
6	Elias Andersson	0.43 s	Java	2016-10-13 13:57:40
7	Joakim Uddholm	0.45 s	Java	2014-10-27 09:13:35
8	Hidden user	0.47 s	Java	2011-03-02 16:34:56
9	Carl Henrik Klåvus	0.47 s	Java	2013-03-06 13:34:00
10	Martin Berntsson	0.48 s	Java	2013-03-05 12:15:14

#	User	Runtime	Language	Date
1	Alston Rodriguez	0.52 s	JavaScript (Node.js)	2026-02-24 02:16:04

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.44 s	JavaScript (SpiderMonkey)	2023-10-21 17:13:07

#	User	Runtime	Language	Date
1	Andreas Wassum	0.62 s	Kotlin	2019-08-17 13:43:16

#	User	Runtime	Language	Date
1	Sivasankaran D	0.20 s	Python 2	2025-10-03 12:50:33
2	Lars Åström	0.25 s	Python 2	2018-07-19 17:09:46
3	Maj Stenmark	0.54 s	Python 2	2018-07-26 17:00:47
4	Måns Magnusson	0.73 s	Python 2	2018-07-19 11:58:06

#	User	Runtime	Language	Date
1	Alex Tanton	0.14 s	Python 3	2026-02-24 01:08:42
2	Ole Vik Lysne	0.15 s	Python 3	2025-05-25 16:49:43
3	Jacob Molin	0.16 s	Python 3	2025-02-27 09:34:09
4	Hidden user	0.16 s	Python 3	2025-07-24 14:28:33
5	Kadriye Yildiz	0.19 s	Python 3	2024-08-23 22:20:12
6	Linh B. Ngo	0.20 s	Python 3	2024-04-15 05:38:26
7	Adrián Fernando Albores Zúñiga	0.20 s	Python 3	2024-12-04 06:05:45
8	Anton Nilsson	0.20 s	Python 3	2025-03-29 22:49:12
9	test test	0.20 s	Python 3	2025-05-26 13:03:22
10	Leo Nyberg	0.20 s	Python 3	2026-02-25 17:23:34

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-03-08 22:50:36
2	Markus Videfors	0.04 s	Rust	2023-03-07 04:21:01
3	Hidden user	0.05 s	Rust	2019-02-24 19:28:02
4	Daniel Anker Hermansen	0.06 s	Rust	2023-03-19 09:59:10
5	David Aldenbro	0.06 s	Rust	2024-10-25 17:51:38
6	Emil Hultcrantz	0.06 s	Rust	2025-02-27 15:53:15
7	Hidden user	0.09 s	Rust	2019-02-28 19:08:32
8	Gustaf Bergmark	0.16 s	Rust	2023-03-02 14:01:33

#	User	Length	Language	Date
1	Mirel Cosulschi	2875	C	2022-11-01 20:28:56
2	Hidden user	5043	C	2017-08-04 22:38:35
3	Mats Linander	6153	C	2006-10-11 16:01:21
4	Henrik Sjögren	6830	C	2006-10-11 18:10:27
5	Oscar Cusin	16838	C	2024-02-22 14:10:51

#	User	Length	Language	Date
1	Matteo Zappia	1024	C++	2022-04-16 18:47:56
2	Josenildo Silva	1088	C++	2017-02-07 21:19:33
3	Nguyen Xuan Tung	1102	C++	2020-04-10 05:49:59
4	Đk Nguyễn	1156	C++	2019-10-24 13:53:14
5	Ahmed Hani	1166	C++	2021-02-14 20:05:13
6	Zac Friggstad	1189	C++	2020-02-04 03:59:50
7	Chenghao Ding	1200	C++	2025-03-17 04:29:46
8	Mohamed Fathy	1206	C++	2021-02-08 11:00:59
9	Paolo Pellizzoni	1231	C++	2022-04-16 18:54:40
10	محمد سامح	1236	C++	2021-02-06 23:54:02

#	User	Length	Language	Date
1	Hidden user	2032	Common Lisp	2019-08-06 23:19:47

#	User	Length	Language	Date
1	Antonio Molina Lovett	1464	Go	2016-02-27 08:47:24
2	Norbert Voelker	2470	Go	2023-05-28 18:10:08

#	User	Length	Language	Date
1	Fulano de Tal	12976	Haskell	2021-11-27 12:24:21

#	User	Length	Language	Date
1	Doug Goodman	2050	Java	2021-05-18 23:43:53
2	Jeffrey H.	2358	Java	2023-08-09 06:46:28
3	Hidden user	2742	Java	2023-01-20 22:49:40
4	Lars Corbijn	3445	Java	2021-11-06 19:25:29
5	Patrik Hörnqvist	3895	Java	2016-06-07 16:28:43
6	Micah Stairs	3900	Java	2016-09-14 15:35:01
7	Taras Romanyuk	4139	Java	2024-06-25 23:07:32
8	Brendan King	4211	Java	2020-08-23 21:50:20
9	David Brink	4312	Java	2018-09-22 13:29:56
10	Fatima Umar	4405	Java	2021-10-16 06:35:44

#	User	Length	Language	Date
1	Alston Rodriguez	1952	JavaScript (Node.js)	2026-02-24 02:15:12

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	3650	JavaScript (SpiderMonkey)	2023-10-21 17:13:07

#	User	Length	Language	Date
1	Andreas Wassum	6007	Kotlin	2019-08-17 13:43:16

#	User	Length	Language	Date
1	Lars Åström	1366	Python 2	2018-07-19 17:09:46
2	Sivasankaran D	1823	Python 2	2025-10-03 12:50:33
3	Måns Magnusson	2737	Python 2	2018-07-19 11:58:06
4	Maj Stenmark	3374	Python 2	2018-07-26 17:00:47

#	User	Length	Language	Date
1	Jorke de Vlas	617	Python 3	2024-03-07 18:54:33
2	ILIE-FLORIAN BONDOC	978	Python 3	2024-11-05 18:47:58
3	Nicholas Russell Saerang	1003	Python 3	2023-06-29 08:45:00
4	Hakim nshimiyimana	1003	Python 3	2024-11-02 10:12:33
5	Russell	1003	Python 3	2025-09-21 16:46:19
6	Iman Khodadi	1056	Python 3	2024-05-29 16:05:35
7	Ole Vik Lysne	1147	Python 3	2025-05-25 16:51:19
8	Philip Welin-Berger	1379	Python 3	2024-02-19 10:00:23
9	WAHID UZ ZAMAN	1398	Python 3	2024-09-15 18:17:53
10	Jacob Molin	1512	Python 3	2025-02-27 09:41:00

#	User	Length	Language	Date
1	Vincent Lagerros	5172	Rust	2024-02-22 17:40:44
2	David Aldenbro	5814	Rust	2024-10-25 17:51:38
3	Markus Videfors	11325	Rust	2023-03-07 04:21:01
4	Gustaf Bergmark	15613	Rust	2023-03-02 14:01:33
5	Emil Hultcrantz	16513	Rust	2025-02-27 15:53:15
6	Hidden user	19140	Rust	2019-02-26 18:26:09
7	Hidden user	19227	Rust	2019-02-28 19:08:32
8	Daniel Anker Hermansen	24042	Rust	2023-03-19 09:59:10

Solution running time distribution