Problem I
ls — Problem Statistics

Back to problem description

Submissions	2385
Accepted submissions	739
Submission ratio	30.99%
Authors	663
Full solves [?]	516
Full solve Ratio	77.83%

#	User	Runtime	Language	Date
1	Arvid Jonasson	0.02 s	APL	2025-06-22 19:20:09

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	C	2018-12-24 15:01:36
2	Bergur Snorrason	0.00 s	C	2019-07-05 21:00:25
3	Ivan Petrov	0.00 s	C	2019-07-17 15:08:19
4	Daniel	0.00 s	C	2021-11-27 15:38:53
5	Oscar Kamf	0.00 s	C	2022-06-15 22:51:29
6	Hidden user	0.00 s	C	2023-01-03 13:29:41
7	Erik Sundin	0.00 s	C	2024-02-13 10:01:37
8	Solomon Tikabo	0.00 s	C	2025-02-17 19:17:30

#	User	Runtime	Language	Date
1	Renjith Sebastian	0.02 s	C#	2017-09-23 13:03:46
2	Klas af Geijerstam	0.02 s	C#	2017-09-24 14:24:54
3	Fredrik Baldhagen	0.04 s	C#	2024-10-28 15:26:16
4	Peter Cederqvist	0.04 s	C#	2025-07-22 16:29:30
5	Jan Matthiessen	0.05 s	C#	2024-09-21 16:45:33

#	User	Runtime	Language	Date
1	Javier Gómez Díaz	0.00 s	Crystal	2024-07-28 15:49:50

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.11 s	F#	2023-09-23 13:29:13

#	User	Runtime	Language	Date
1	Jimmy Gustafsson	0.02 s	Go	2022-06-20 21:44:19
2	Norbert Voelker	0.02 s	Go	2023-03-29 12:27:21
3	Godmar Back	0.08 s	Go	2020-10-19 02:47:14

#	User	Runtime	Language	Date
1	Birk Tjelmeland	0.00 s	Haskell	2017-12-23 00:21:44

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.04 s	Java	2024-08-01 11:29:25
2	Alexander Matheson	0.04 s	Java	2025-07-20 08:12:55
3	123 123	0.04 s	Java	15:41:44
4	Nick Wu	0.05 s	Java	2017-09-28 00:00:22
5	Othmane Bentaleb	0.05 s	Java	2018-08-20 02:24:01
6	Mohamed CHADAD	0.05 s	Java	2018-08-20 03:34:41
7	Jon Cavallie Mester	0.05 s	Java	2024-06-27 15:07:51
8	Issa Issack	0.05 s	Java	2025-07-21 02:55:30
9	Amy Colpitts	0.05 s	Java	2025-07-22 03:11:04
10	Erik Baalhuis	0.06 s	Java	2017-09-29 19:59:49

#	User	Runtime	Language	Date
1	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-06-16 12:39:41
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2018-07-31 07:55:58
3	Christopher Walther	0.03 s	JavaScript (SpiderMonkey)	2021-05-14 20:34:08
4	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-07-02 21:20:01

#	User	Runtime	Language	Date
1	Benjamin Ye	0.12 s	Kotlin	2023-02-12 20:29:12
2	Roy Liu	0.16 s	Kotlin	2023-06-18 19:55:52
3	Ali Amid	0.20 s	Kotlin	2024-08-18 19:26:32
4	Adam Rankin	0.22 s	Kotlin	2023-09-14 03:38:23

#	User	Runtime	Language	Date
1	Asger Hautop Drewsen	0.03 s	Python 2	2017-09-29 14:05:40
2	Sigurður Jens Albertsson	0.03 s	Python 2	2017-11-29 18:38:40
3	Thore Husfeldt	0.03 s	Python 2	2018-10-04 20:44:28
4	Hermon Mulat	0.03 s	Python 2	2018-10-12 04:42:27
5	Yanmarshus Bachtiar	0.03 s	Python 2	2020-11-20 10:18:18
6	Maj Stenmark	0.04 s	Python 2	2018-08-16 20:54:03
7	Måns Magnusson	0.04 s	Python 2	2018-08-16 23:40:43
8	Brynjar Sigurðsson	0.05 s	Python 2	2018-05-02 18:53:33
9	Eythor Andri	0.05 s	Python 2	2018-05-03 14:37:37
10	Felix Balthasar Berief	0.05 s	Python 2	2018-10-05 19:02:14

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2017-09-23 12:22:35
2	Ciara Godwin	0.02 s	Python 3	2017-09-23 16:14:07
3	Asger Hautop Drewsen	0.02 s	Python 3	2017-09-26 21:04:46
4	Cian Ruane	0.02 s	Python 3	2018-02-27 15:02:07
5	Ram Basnet	0.02 s	Python 3	2018-03-16 06:02:27
6	Bjarki Ágúst Guðmundsson	0.02 s	Python 3	2018-05-04 13:54:12
7	Guðný Lára Guðmundsdóttir	0.02 s	Python 3	2018-05-05 13:20:23
8	Driss Khalil	0.02 s	Python 3	2018-08-20 02:43:06
9	Marko Klemenšek	0.02 s	Python 3	2018-09-01 11:50:13
10	Kasra Ghodsi	0.02 s	Python 3	2018-10-24 15:31:10

#	User	Runtime	Language	Date
1	Miorel Palii	0.03 s	Ruby	2017-12-28 02:02:57
2	Thomas Feld	0.06 s	Ruby	2023-03-28 12:42:59
3	Javier Gómez Díaz	0.07 s	Ruby	2024-07-28 15:32:25

#	User	Length	Language	Date
1	Arvid Jonasson	134	APL	2025-06-23 01:10:10

#	User	Length	Language	Date
1	Erik Sundin	333	C	2024-02-13 10:02:53
2	Hidden user	367	C	2018-12-24 15:01:36
3	Ivan Petrov	838	C	2019-07-17 15:08:19
4	Hidden user	902	C	2023-01-03 13:29:41
5	Daniel	1666	C	2021-11-27 15:38:53
6	Solomon Tikabo	1799	C	2025-02-17 19:17:30
7	Oscar Kamf	2130	C	2022-06-15 22:51:29
8	Bergur Snorrason	2580	C	2019-07-05 21:00:25

#	User	Length	Language	Date
1	Fredrik Baldhagen	1387	C#	2024-10-28 15:26:16
2	Peter Cederqvist	1398	C#	2025-07-22 16:29:30
3	Renjith Sebastian	1926	C#	2017-09-23 13:03:46
4	Klas af Geijerstam	2475	C#	2017-09-24 14:24:54
5	Jan Matthiessen	2870	C#	2024-09-21 16:45:33

#	User	Length	Language	Date
1	Mathias Rav	538	C++	2017-09-29 13:49:52
2	Pedro Suyama Leston Rey	583	C++	2023-01-23 18:23:51
3	Zac Friggstad	601	C++	2024-02-06 21:46:22
4	Mohamed Jarat	605	C++	2018-08-20 20:07:35
5	a_b__c	609	C++	2021-01-27 03:17:25
6	Jalvin Chan Jia Xiang	653	C++	2020-04-06 09:33:58
7	Alexander Skidanov	663	C++	2024-12-03 23:12:12
8	Daniel de Matos	672	C++	2023-01-23 18:34:59
9	Lim An Jun	695	C++	2023-01-02 04:43:51
10	Ishak Dervišević	704	C++	2019-11-03 15:48:59

#	User	Length	Language	Date
1	Javier Gómez Díaz	76	Crystal	2024-07-28 15:49:50

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	845	F#	2023-09-23 13:29:13

#	User	Length	Language	Date
1	Jimmy Gustafsson	352	Go	2022-06-20 21:44:19
2	Norbert Voelker	431	Go	2023-03-29 12:28:54
3	Godmar Back	523	Go	2020-10-19 02:47:14

#	User	Length	Language	Date
1	Birk Tjelmeland	651	Haskell	2017-12-23 00:21:44

#	User	Length	Language	Date
1	Timothy Buzzelli	824	Java	2019-01-05 19:51:07
2	Ken Hall	1004	Java	2017-10-05 04:41:14
3	Ellie Koz	1009	Java	2019-01-05 22:19:05
4	Marc Dominic San Pedro	1072	Java	2024-05-22 03:35:14
5	Andreas Jansson	1110	Java	2018-09-28 12:15:30
6	Doug Goodman	1133	Java	2019-06-13 15:07:01
7	Mong-En Ip	1145	Java	2021-10-16 17:10:37
8	Luke Eales	1191	Java	2023-06-16 21:09:46
9	Lior Barak	1201	Java	2021-10-16 16:59:50
10	Joud Al Mualem	1290	Java	2025-06-23 15:10:42

#	User	Length	Language	Date
1	Jimmy Gustafsson	496	JavaScript (SpiderMonkey)	2022-06-16 12:39:41
2	Christian Cederquist	697	JavaScript (SpiderMonkey)	2023-07-02 21:20:01
3	Christopher Walther	1037	JavaScript (SpiderMonkey)	2021-05-14 20:34:08
4	Bjørn Chr. Soltvedt	1301	JavaScript (SpiderMonkey)	2018-07-31 07:55:58

#	User	Length	Language	Date
1	Benjamin Ye	843	Kotlin	2023-02-12 20:29:12
2	Ali Amid	866	Kotlin	2024-08-18 19:32:28
3	Roy Liu	1224	Kotlin	2023-06-18 19:58:00
4	Adam Rankin	1274	Kotlin	2023-09-14 03:38:23

#	User	Length	Language	Date
1	Andreas Björklund	398	Python 2	2019-05-05 14:21:37
2	Asger Hautop Drewsen	530	Python 2	2017-09-29 14:05:40
3	Måns Magnusson	532	Python 2	2018-08-16 23:40:43
4	Maj Stenmark	587	Python 2	2018-08-16 20:54:03
5	Sigurður Jens Albertsson	771	Python 2	2017-11-29 18:38:40
6	Brynjar Sigurðsson	782	Python 2	2018-05-03 14:34:28
7	Eythor Andri	783	Python 2	2018-05-03 14:37:37
8	Yanmarshus Bachtiar	810	Python 2	2020-11-20 10:18:18
9	Thore Husfeldt	839	Python 2	2018-10-04 20:44:28
10	Hermon Mulat	840	Python 2	2018-10-12 04:42:27

#	User	Length	Language	Date
1	Guk Yi Siong	119	Python 3	2024-12-05 11:23:50
2	Enrique Javier Cobo Jimenez	135	Python 3	2024-11-16 19:13:00
3	Naser Ogrešević	173	Python 3	2024-03-18 18:51:21
4	Jakob Fredby	178	Python 3	2025-06-26 02:28:20
5	Hidden user	181	Python 3	2025-06-19 13:47:57
6	Kadriye Yildiz	197	Python 3	2024-08-18 01:12:03
7	Simon Hellsten	238	Python 3	2023-07-29 13:38:38
8	Asger Hautop Drewsen	258	Python 3	2017-09-29 14:12:03
9	Oskar Haarklou Veileborg	258	Python 3	2017-10-06 14:45:55
10	Linus Överhem Eriksson	288	Python 3	2025-06-24 16:51:44

#	User	Length	Language	Date
1	Javier Gómez Díaz	69	Ruby	2024-07-28 15:40:26
2	Thomas Feld	73	Ruby	2023-03-28 13:23:44
3	Miorel Palii	101	Ruby	2017-12-28 02:02:57

#	User	Length	Language	Date
1	Jiaxun Wei	994	Rust	2024-12-23 09:12:19
2	Thomas Hügel	1254	Rust	2021-02-26 17:30:15
3	Eric Källman	1274	Rust	2025-06-25 00:24:13
4	Erik Persson	1820	Rust	2024-06-13 10:14:43
5	Aymeric Bachelet	1877	Rust	2021-03-19 11:36:02
6	Hidden user	1960	Rust	2023-06-20 11:35:39
7	Melker Forsberg	1980	Rust	2023-06-17 02:51:57
8	Nicholas	2330	Rust	2023-06-15 17:28:13
9	Buster Hultgren Wärn	3503	Rust	2024-07-30 21:36:26
10	Hidden user	8686	Rust	2025-03-01 09:50:11

Solution running time distribution