Problem A
Good Messages — Problem Statistics

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Submissions	878
Accepted submissions	175
Submission ratio	19.93%
Authors	189
Accepted authors	152
Author ratio	80.42%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-06-24 10:41:08
2	Bergur Snorrason	0.00 s	C	2019-09-17 16:46:44
3	Eyleifur Bjarkason	0.00 s	C	2019-09-20 01:05:43

#	User	Runtime	Language	Date
1	Mikael Fiala-Lundström	0.02 s	C#	2021-07-18 01:39:46
2	Charles Christensen	0.03 s	C#	2020-05-08 22:47:46
3	Marcus Östling	0.04 s	C#	2024-04-03 21:55:16
4	Bernards Gulbis	0.04 s	C#	2024-11-22 15:10:17
5	Kevin Reinholdsson	0.04 s	C#	2024-11-22 15:51:36
6	Jaakko Honkaranta	0.04 s	C#	2024-11-22 16:30:25
7	Gonçalo Oliveira	0.04 s	C#	2024-11-22 17:42:19
8	Anders Severinsen	0.04 s	C#	2025-02-26 21:36:36
9	Martin Eriksen	0.05 s	C#	2024-11-22 13:51:13
10	Domantas Grotuzas	0.05 s	C#	2024-11-22 16:31:49

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2022-02-11 20:23:52

#	User	Runtime	Language	Date
1	Md Akif Chowdhury	0.00 s	Haskell	2023-07-03 09:24:16
2	Hidden user	0.00 s	Haskell	2023-07-15 18:27:47
3	Brent Yorgey	0.01 s	Haskell	2019-06-17 03:16:35

#	User	Runtime	Language	Date
1	Quân Anh	0.05 s	Java	2024-04-20 19:06:45
2	Joachim Geerts	0.05 s	Java	2024-11-22 16:25:09
3	Crystal Sharpe	0.06 s	Java	2020-05-15 04:39:37
4	Andrew Polizzotto	0.06 s	Java	2020-05-19 05:53:27
5	Liam Keliher	0.06 s	Java	2020-05-24 21:40:38
6	Hiếu Vũ Minh	0.06 s	Java	2022-02-07 20:13:21
7	Andreas Jørgensen	0.09 s	Java	2023-10-03 17:04:24
8	Benjamin Wen	0.09 s	Java	2023-10-03 17:10:13
9	Anders Severinsen	0.09 s	Java	2023-10-03 17:13:03
10	Orkhan Mammadov	0.09 s	Java	2024-11-22 15:20:48

#	User	Runtime	Language	Date
1	Luís Azevedo	0.05 s	JavaScript (Node.js)	2024-11-22 17:57:07

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2021-02-22 17:51:02
2	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-11-08 21:50:12

#	User	Runtime	Language	Date
1	Jesper Bech Christensen	0.20 s	Kotlin	2023-10-03 16:27:41

#	User	Runtime	Language	Date
1	Björn Lindqvist	0.00 s	Pascal	2024-11-22 14:13:37

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2021-07-18 01:34:42

#	User	Runtime	Language	Date
1	Johan Lyts	0.03 s	Python 2	2019-06-16 21:51:55
2	Aarav Singh	0.03 s	Python 2	2019-06-26 06:51:59
3	Oskar Haarklou Veileborg	0.03 s	Python 2	2019-09-26 16:00:08
4	Godmar Back	0.03 s	Python 2	2020-11-23 20:13:51
5	Hidden user	0.04 s	Python 2	2019-09-21 18:44:05

#	User	Runtime	Language	Date
1	Teikn Smith	0.04 s	Python 3	2024-08-30 20:34:31
2	Jonathan de Koning	0.04 s	Python 3	2024-09-29 23:39:50
3	UTM CS AI	0.04 s	Python 3	2024-10-02 22:08:50
4	Oliver Ekberg	0.04 s	Python 3	2024-11-25 22:00:14
5	Lee Bing Cheng	0.04 s	Python 3	2025-03-12 07:14:40
6	Tan Yi Long	0.04 s	Python 3	2025-03-30 06:46:47
7	Rachel Ercin	0.04 s	Python 3	2025-05-07 14:11:41
8	Kadin M	0.04 s	Python 3	2025-06-06 07:52:01
9	Gv Bin	0.04 s	Python 3	2025-07-02 05:44:16
10	Bjørn Dons	0.05 s	Python 3	2022-06-05 21:35:24

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-08-24 15:09:34

#	User	Runtime	Language	Date
1	Wang Zhi Jian	0.00 s	Rust	2019-06-20 07:49:43
2	Bas Dirks	0.00 s	Rust	2022-06-02 11:40:42
3	Artur Khuziakhmetov	0.00 s	Rust	2023-06-12 17:18:23
4	Daniel Anker Hermansen	0.00 s	Rust	2023-10-03 16:50:11

#	User	Runtime	Language	Date
1	Iosif Moldovan	0.00 s	Swift	2024-11-22 10:32:56

#	User	Runtime	Language	Date
1	Mahan vr	0.04 s	TypeScript	2024-11-22 19:20:13

#	User	Length	Language	Date
1	Ivan Petrov	1158	C	2019-06-24 10:41:08
2	Bergur Snorrason	1983	C	2019-09-17 16:46:44
3	Eyleifur Bjarkason	5420	C	2019-09-20 01:05:43

#	User	Length	Language	Date
1	Jaakko Honkaranta	1029	C#	2024-11-22 16:30:25
2	Jonas Andersson	1120	C#	2024-11-22 16:33:25
3	Niclas Finsberg	1293	C#	2024-11-22 15:19:05
4	Domantas Grotuzas	1480	C#	2024-11-22 16:31:49
5	Erikas Montvydas	1657	C#	2024-11-22 18:59:54
6	Kevin Reinholdsson	1670	C#	2024-11-22 15:51:36
7	Anders Severinsen	1722	C#	2025-02-26 21:36:36
8	Gonçalo Oliveira	1923	C#	2024-11-22 17:42:19
9	Martin Eriksen	2397	C#	2024-11-22 13:51:13
10	Kristupas Lunskas	2424	C#	2024-11-22 17:54:16

#	User	Length	Language	Date
1	Ernest Ng Zi Xuan	449	C++	2024-06-08 09:13:54
2	Grae Yeandle	452	C++	2021-11-15 11:14:55
3	Dominik Kubicki	526	C++	2021-09-28 18:41:12
4	Monics Barbs	540	C++	2022-10-30 12:22:15
5	Aditya Sundaram	542	C++	2019-12-10 05:19:55
6	Tran Tuong Minh Nguyen	547	C++	2019-07-13 00:22:53
7	Andreas Grigorjew	562	C++	2020-03-20 01:33:39
8	Donald Dong	628	C++	2019-06-16 18:01:48
9	Hidden user	636	C++	2019-07-03 11:14:12
10	Markus Mathiasen	656	C++	2023-08-29 17:15:45

#	User	Length	Language	Date
1	Norbert Voelker	906	Go	2022-02-11 20:23:52

#	User	Length	Language	Date
1	Hidden user	595	Haskell	2023-07-15 18:27:47
2	Md Akif Chowdhury	896	Haskell	2023-07-03 09:24:16
3	Brent Yorgey	1204	Haskell	2019-06-17 03:16:35

#	User	Length	Language	Date
1	Ali Pervaiz	1135	Java	2019-06-28 17:05:26
2	Dylan Smith	1136	Java	2019-06-13 21:41:37
3	Doug Goodman	1204	Java	2020-06-18 17:07:49
4	Crystal Sharpe	1208	Java	2020-05-15 04:39:37
5	Joel Gritter	1239	Java	2022-03-26 02:26:56
6	Benjamin Wen	1287	Java	2023-10-03 17:11:00
7	Anders Severinsen	1387	Java	2023-10-03 17:13:03
8	Andrew Polizzotto	1392	Java	2020-05-19 05:53:27
9	Žygimantas Kramenka	1395	Java	2024-11-22 18:36:08
10	Morten Kristiansen	1399	Java	2020-03-20 09:39:49

#	User	Length	Language	Date
1	Luís Azevedo	2027	JavaScript (Node.js)	2024-11-22 17:57:07

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	432	JavaScript (SpiderMonkey)	2021-02-22 17:51:02
2	Christian Cederquist	1112	JavaScript (SpiderMonkey)	2023-11-08 21:50:12

#	User	Length	Language	Date
1	Jesper Bech Christensen	358	Kotlin	2023-10-03 16:27:41

#	User	Length	Language	Date
1	Björn Lindqvist	1616	Pascal	2024-11-22 14:13:37

#	User	Length	Language	Date
1	Renate	1064	PHP	2021-07-18 01:34:42

#	User	Length	Language	Date
1	Godmar Back	416	Python 2	2020-11-23 20:13:51
2	Oskar Haarklou Veileborg	436	Python 2	2019-09-26 16:00:08
3	Johan Lyts	564	Python 2	2019-06-16 21:51:55
4	Aarav Singh	633	Python 2	2019-06-26 06:51:59
5	Hidden user	762	Python 2	2019-09-21 18:44:05

#	User	Length	Language	Date
1	Benjamin Z White	195	Python 3	2023-07-17 01:01:00
2	Nicholas Russell Saerang	212	Python 3	2024-04-29 09:03:19
3	Teikn Smith	259	Python 3	2024-08-30 20:34:31
4	Kelly Dance	292	Python 3	2023-06-24 14:04:52
5	Tan Yi Long	329	Python 3	2025-03-30 06:46:47
6	Joey Tribianni	343	Python 3	2021-06-23 10:19:23
7	Lammert Westerdijk	352	Python 3	2023-09-28 10:26:42
8	Kattis Speedrun	389	Python 3	2022-07-22 16:51:19
9	Raymond Yang	396	Python 3	2019-11-15 23:27:48
10	Yohannes Melese	397	Python 3	2021-06-23 10:20:12

#	User	Length	Language	Date
1	Thomas Feld	126	Ruby	2023-08-24 15:11:29

#	User	Length	Language	Date
1	Artur Khuziakhmetov	751	Rust	2023-06-12 17:18:23
2	Bas Dirks	1135	Rust	2022-06-02 11:40:42
3	Wang Zhi Jian	1232	Rust	2019-06-20 07:49:43
4	Daniel Anker Hermansen	26927	Rust	2023-10-03 16:50:11

#	User	Length	Language	Date
1	Iosif Moldovan	1444	Swift	2024-11-22 10:32:56

#	User	Length	Language	Date
1	Mahan vr	2047	TypeScript	2024-11-22 19:20:13

Solution running time distribution