Problem A
Social running — Problem Statistics

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Submissions	1086
Accepted submissions	596
Submission ratio	54.88%
Authors	568
Full solves [?]	523
Full solve Ratio	92.08%

#	User	Runtime	Language	Date
1	Thomas Feld	0.01 s	APL	2023-04-26 09:33:47

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.07 s	Bash	2023-10-01 09:15:43

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2020-03-23 16:50:15
2	Sambit Palit	0.00 s	C	2021-01-22 20:04:11
3	PhilCampbell	0.00 s	C	2021-02-22 17:35:11
4	Filip Hovorka	0.00 s	C	2021-03-21 18:26:12
5	Andrew Roberts	0.00 s	C	2022-01-16 09:57:06
6	Miorel Palii	0.00 s	C	2022-03-24 19:42:01
7	Eyleifur Bjarkason	0.00 s	C	2023-07-01 15:42:35
8	Mirel Cosulschi	0.00 s	C	2025-02-22 23:23:37

#	User	Runtime	Language	Date
1	Sloth	0.02 s	C#	2020-02-19 18:53:36
2	Gurpartap Singh Bhatti	0.02 s	C#	2020-04-15 05:52:43
3	Henrik Hallbert	0.02 s	C#	2020-09-30 14:04:52
4	Marcus Elg	0.02 s	C#	2020-11-13 10:27:00
5	Adam Imbert	0.02 s	C#	2020-12-15 20:49:39
6	Mikael Fiala-Lundström	0.02 s	C#	2021-06-01 20:39:03
7	Göran Andersson	0.03 s	C#	2022-05-21 05:08:32
8	traxex	0.04 s	C#	2024-05-09 12:00:12

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-12-17 09:37:43

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-05-14 18:12:02

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2023-01-19 16:13:07
2	Brent Yorgey	0.01 s	Haskell	2020-03-23 15:54:49
3	Hidden user	0.01 s	Haskell	2020-05-24 12:17:36
4	Carl Westerlund	0.01 s	Haskell	2020-09-23 23:15:56
5	Jan Hrček	0.01 s	Haskell	2021-03-14 14:58:57
6	Sondre Lunde	0.01 s	Haskell	2021-11-07 10:39:14
7	Steinar Simonnes	0.01 s	Haskell	2024-05-30 11:18:02

#	User	Runtime	Language	Date
1	Stela Palii	0.05 s	Java	2024-12-10 17:43:52
2	Liam Keliher	0.06 s	Java	2020-05-01 06:23:55
3	Crystal Sharpe	0.06 s	Java	2020-05-02 16:41:24
4	Lim Zhan Hong	0.06 s	Java	2020-06-07 07:36:20
5	BluE Grand	0.06 s	Java	2020-06-24 01:24:28
6	Samuel Klingström	0.06 s	Java	2020-06-25 19:57:02
7	Theodoric Keith Lim	0.06 s	Java	2020-07-08 23:37:06
8	Emil Bak-Møller	0.06 s	Java	2020-07-28 16:09:24
9	Ho Lyun Jeong	0.06 s	Java	2020-12-04 05:11:41
10	Kadin Tang	0.06 s	Java	2020-12-19 08:46:44

#	User	Runtime	Language	Date
1	Chris Wong	0.41 s	JavaScript (Node.js)	2022-01-23 23:23:13
2	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-22 19:19:50

#	User	Runtime	Language	Date
1	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-10-07 14:15:01
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-21 12:19:04
3	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2020-03-23 20:46:53

#	User	Runtime	Language	Date
1	Timothy Gaede	0.63 s	Julia	2024-06-11 15:24:41

#	User	Runtime	Language	Date
1	Jacob Huebner	0.14 s	Kotlin	2020-04-22 06:12:13
2	Björn Holm	0.17 s	Kotlin	2020-02-19 18:22:02
3	Adam Rankin	0.17 s	Kotlin	2023-08-25 03:38:11
4	Cedrik Aagaard	0.18 s	Kotlin	2020-02-19 18:31:32

#	User	Runtime	Language	Date
1	Lars Åström	0.00 s	OCaml	2020-11-06 23:46:24

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2020-05-23 13:26:29

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-03-14 20:55:12

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-20 10:27:48
2	Björn Magnusson	0.03 s	Python 2	2020-02-19 18:10:42
3	Linus Karlsson	0.03 s	Python 2	2020-02-19 18:22:43
4	Anton Lyxell	0.03 s	Python 2	2020-02-19 18:25:04
5	Chaitanya Katpatal	0.03 s	Python 2	2020-02-19 19:52:26
6	Andreas Björklund	0.03 s	Python 2	2020-03-24 20:52:54
7	Johan Lyts	0.03 s	Python 2	2020-03-25 13:55:07
8	Thomas Feld	0.03 s	Python 2	2020-03-26 10:38:58
9	Ram Basnet	0.03 s	Python 2	2020-03-28 21:44:10
10	Andrei Stoica	0.03 s	Python 2	2020-11-02 10:56:36

#	User	Runtime	Language	Date
1	Peter Stauder	0.04 s	Python 3	2022-06-24 19:49:25
2	Erik Dyrelius	0.04 s	Python 3	2022-07-06 09:44:52
3	Hidden user	0.04 s	Python 3	2022-07-14 11:30:20
4	Marcus Gehrmann	0.04 s	Python 3	2022-07-16 20:06:25
5	Kattis Speedrun	0.04 s	Python 3	2022-07-22 01:57:42
6	Andrés Robles Arce	0.04 s	Python 3	2022-07-25 22:33:02
7	Hasan Kalzi	0.04 s	Python 3	2022-07-26 14:50:58
8	Rizal Andriana	0.04 s	Python 3	2022-08-03 18:09:38
9	Mukerem Ali Nur	0.04 s	Python 3	2022-08-24 07:51:36
10	Ola Dahl	0.04 s	Python 3	2022-09-01 20:22:12

#	User	Runtime	Language	Date
1	Kok Dith	0.05 s	Ruby	2021-08-24 14:02:16
2	Miorel Palii	0.05 s	Ruby	2022-03-24 19:32:47
3	Hakan Kjellerstrand	0.05 s	Ruby	2023-03-16 13:30:59
4	Thomas Feld	0.06 s	Ruby	2023-01-31 09:04:20
5	Chenzhang Hu	0.07 s	Ruby	2024-12-01 14:23:51

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-02-05 09:19:15

#	User	Length	Language	Date
1	Thomas Feld	33	APL	2023-04-26 09:35:35

#	User	Length	Language	Date
1	Chenzhang Hu	60	Bash	2025-09-12 22:13:52

#	User	Length	Language	Date
1	Andrew Roberts	336	C	2022-01-16 09:57:06
2	Miorel Palii	347	C	2022-03-24 19:42:01
3	PhilCampbell	372	C	2021-02-22 17:35:11
4	Mirel Cosulschi	373	C	2025-02-22 23:23:37
5	Filip Hovorka	418	C	2021-03-21 18:26:12
6	Sambit Palit	469	C	2021-01-22 20:04:11
7	Bergur Snorrason	1574	C	2020-03-23 16:50:15
8	Eyleifur Bjarkason	7703	C	2023-07-01 15:42:35

#	User	Length	Language	Date
1	traxex	281	C#	2024-05-09 12:00:12
2	Göran Andersson	627	C#	2022-05-21 05:08:32
3	Sloth	701	C#	2020-02-19 18:53:36
4	Henrik Hallbert	800	C#	2020-09-30 14:04:52
5	Gurpartap Singh Bhatti	803	C#	2020-04-15 05:52:43
6	Adam Imbert	907	C#	2020-12-15 20:49:39
7	Marcus Elg	987	C#	2020-11-13 10:27:00
8	Mikael Fiala-Lundström	1376	C#	2021-06-01 20:39:03

#	User	Length	Language	Date
1	Hidden user	212	C++	2020-07-21 20:05:58
2	Đậu Huy Minh	248	C++	2025-08-27 10:57:13
3	Jacob Zhang	262	C++	2020-12-02 04:03:19
4	Markus Mathiasen	264	C++	2022-01-27 18:31:50
5	Frederick Pek	271	C++	2021-06-16 06:23:17
6	Mohsen Mahroos	277	C++	2023-03-28 01:40:23
7	Daniel Fernando Santos Bustos	280	C++	2024-08-29 18:38:41
8	Li Jiayu	286	C++	2022-01-12 04:56:04
9	Lim An Jun	291	C++	2023-04-01 15:23:37
10	Joel Au	298	C++	2020-11-24 10:49:35

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	424	F#	2022-12-17 09:37:43

#	User	Length	Language	Date
1	Norbert Voelker	646	Go	2021-05-14 18:12:02

#	User	Length	Language	Date
1	Hidden user	252	Haskell	2023-01-19 16:13:07
2	Jan Hrček	304	Haskell	2021-03-14 14:58:57
3	Carl Westerlund	333	Haskell	2020-09-23 23:15:56
4	Steinar Simonnes	422	Haskell	2024-05-30 11:18:02
5	Sondre Lunde	492	Haskell	2021-11-07 10:39:14
6	Brent Yorgey	733	Haskell	2020-03-23 15:54:49
7	Hidden user	10835	Haskell	2020-05-24 12:17:36

#	User	Length	Language	Date
1	Raymond Arrington	403	Java	2024-06-30 20:28:58
2	Ian Gonzalez	409	Java	2020-03-26 20:27:00
3	Ruhan Goltay	436	Java	2021-11-28 13:57:40
4	Joshua Navarro	448	Java	2021-05-14 16:02:49
5	Said RIZQUE	469	Java	2021-11-09 20:06:03
6	Paul Boddington	485	Java	2020-07-20 19:32:39
7	Marius Larsen	509	Java	2020-11-19 17:14:35
8	Crystal Sharpe	519	Java	2020-03-24 15:39:53
9	Ng Yong Xiang	536	Java	2021-12-02 09:39:32
10	Caeden Whitaker	541	Java	2020-07-21 16:15:58

#	User	Length	Language	Date
1	Andoko Chandra	917	JavaScript (Node.js)	2020-10-22 19:19:50
2	Chris Wong	942	JavaScript (Node.js)	2022-01-23 23:23:13

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	199	JavaScript (SpiderMonkey)	2023-02-21 12:19:04
2	Peter Menyes	226	JavaScript (SpiderMonkey)	2021-10-07 14:15:01
3	Bjørn Chr. Soltvedt	565	JavaScript (SpiderMonkey)	2020-03-23 20:46:53

#	User	Length	Language	Date
1	Timothy Gaede	685	Julia	2024-06-11 15:24:41

#	User	Length	Language	Date
1	Adam Rankin	150	Kotlin	2023-08-25 03:38:11
2	Jacob Huebner	405	Kotlin	2020-04-22 06:12:13
3	Cedrik Aagaard	502	Kotlin	2020-02-19 18:31:32
4	Björn Holm	2187	Kotlin	2020-02-19 18:22:02

#	User	Length	Language	Date
1	Lars Åström	668	OCaml	2020-11-06 23:46:24

#	User	Length	Language	Date
1	Ingemar Ragnemalm	313	Pascal	2020-05-23 13:26:29

#	User	Length	Language	Date
1	Hakan Kjellerstrand	159	Prolog	2023-03-14 21:02:16

#	User	Length	Language	Date
1	Thomas Feld	102	Python 2	2020-03-26 10:38:58
2	Björn Magnusson	136	Python 2	2020-02-19 18:10:42
3	Andreas Björklund	144	Python 2	2020-03-24 20:52:54
4	Johan Lyts	199	Python 2	2020-03-25 13:55:07
5	Anton Lyxell	227	Python 2	2020-02-19 18:25:04
6	Andrei Stoica	246	Python 2	2020-11-02 10:56:36
7	Linus Karlsson	298	Python 2	2020-02-19 18:22:43
8	Chaitanya Katpatal	301	Python 2	2020-02-19 19:52:26
9	Hidden user	396	Python 2	2021-03-06 14:46:00
10	Ram Basnet	435	Python 2	2020-03-28 21:44:10

#	User	Length	Language	Date
1	Clement Oh	62	Python 3	2023-06-21 19:55:25
2	Benjamin Z White	79	Python 3	2023-05-18 18:53:20
3	Timothy Baeckelant	95	Python 3	2024-04-13 23:14:20
4	Hidden user	100	Python 3	2020-03-24 22:58:17
5	Joey Tribianni	100	Python 3	2022-09-14 21:43:18
6	Yohannes Melese	100	Python 3	2022-09-14 21:43:54
7	Asger Hautop Drewsen	101	Python 3	2021-02-25 11:25:05
8	Thomas Draper	101	Python 3	2023-11-10 03:55:50
9	Hidden user	102	Python 3	2020-07-30 02:08:13
10	Evan Rose	103	Python 3	2023-05-20 08:55:10

#	User	Length	Language	Date
1	Thomas Feld	47	Ruby	2023-01-31 09:04:20
2	Chenzhang Hu	51	Ruby	2024-12-01 14:23:51
3	Hakan Kjellerstrand	71	Ruby	2023-03-16 13:59:23
4	Miorel Palii	128	Ruby	2022-03-24 19:32:47
5	Kok Dith	146	Ruby	2021-08-24 14:02:16

#	User	Length	Language	Date
1	Bas Dirks	1071	Rust	2022-02-05 09:19:15

Solution running time distribution