Problem A
Altruistic Amphibians — Problem Statistics

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Submissions	963
Accepted submissions	231
Submission ratio	23.99%
Authors	210
Full solves [?]	154
Full solve Ratio	73.33%

#	User	Runtime	Language	Date
1	Hidden user	0.29 s	C	2020-02-18 05:14:44
2	鹿目圆	0.30 s	C	2018-10-16 09:01:29
3	Ivan Petrov	0.30 s	C	2019-01-11 14:33:51
4	Bergur Snorrason	0.38 s	C	2020-02-18 14:57:35

#	User	Runtime	Language	Date
1	Brandon Zhang	0.22 s	C++	2020-05-04 00:56:32
2	Lin Lee	0.23 s	C++	2021-11-17 10:39:38
3	SiBi	0.24 s	C++	2018-11-24 12:09:34
4	Ludo Pulles	0.25 s	C++	2018-10-07 18:36:22
5	Li Yue Chen	0.26 s	C++	2018-11-25 09:53:22
6	Yen-Hsiang Chang	0.27 s	C++	2019-02-21 23:39:13
7	Osman Jimenez	0.27 s	C++	2019-08-13 20:16:24
8	Benjamin Qi	0.28 s	C++	2018-10-07 03:49:04
9	Nick Wu	0.28 s	C++	2018-10-14 22:25:38
10	Eoin Davey	0.28 s	C++	2018-11-05 20:36:33

#	User	Runtime	Language	Date
1	Bjørn Dons	2.57 s	Go	2023-08-02 14:02:56

#	User	Runtime	Language	Date
1	Gustav Valentin Yde	0.58 s	Java	2019-01-25 12:27:50
2	Terrence Park	0.61 s	Java	2018-10-14 23:22:05
3	Arup Ratan Guha	0.65 s	Java	2019-04-18 18:29:59
4	Åke Wettergren	0.75 s	Java	2018-11-28 13:43:45
5	Yuxiang Zhang	0.75 s	Java	2021-09-22 22:32:20
6	Benjamin Reidys	0.77 s	Java	2019-10-18 18:56:26
7	Michael O'Brien	0.77 s	Java	2022-01-29 21:53:37
8	Kadin Tang	0.85 s	Java	2020-08-25 03:52:35
9	Benjamin Klahn	0.90 s	Java	2019-01-25 12:25:41
10	Thore Husfeldt	1.06 s	Java	2018-10-15 09:37:21

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.84 s	JavaScript (SpiderMonkey)	2023-08-14 20:13:35

#	User	Runtime	Language	Date
1	Jacob Huebner	0.78 s	Kotlin	2022-02-15 04:38:09

#	User	Runtime	Language	Date
1	Måns Magnusson	0.80 s	Python 2	2018-10-08 12:17:25
2	Thore Husfeldt	0.80 s	Python 2	2018-10-08 13:29:04
3	Oskar Haarklou Veileborg	0.80 s	Python 2	2018-10-10 22:18:12
4	Søren Hjort	0.84 s	Python 2	2019-10-04 22:02:28
5	Maj Stenmark	1.10 s	Python 2	2018-10-19 12:49:21
6	Olav Røthe Bakken	1.43 s	Python 2	2019-08-13 15:26:56
7	Andreas Björklund	1.74 s	Python 2	2019-01-14 19:48:16

#	User	Runtime	Language	Date
1	Viktor Bello Thomsen	0.79 s	Python 3	2020-10-01 21:42:33
2	Jonathan Cederlund	0.96 s	Python 3	2025-10-09 20:42:47
3	Hidden user	1.06 s	Python 3	2022-08-18 09:29:25
4	Dhaanish Kaja	1.13 s	Python 3	2022-02-06 23:25:50
5	Isaac Lee	1.20 s	Python 3	2025-07-19 22:33:45
6	Gustavo Fadel	1.21 s	Python 3	2021-11-29 21:36:27
7	Hrant Hovhannisyan	1.49 s	Python 3	2025-10-24 10:39:12
8	Ankur Garg	1.54 s	Python 3	2021-11-20 22:47:16

#	User	Runtime	Language	Date
1	Daniel Anker Hermansen	1.18 s	Rust	2025-05-27 12:37:50

#	User	Length	Language	Date
1	Ivan Petrov	892	C	2019-01-11 14:33:51
2	鹿目圆	922	C	2018-10-16 09:01:29
3	Hidden user	1900	C	2020-02-18 05:14:44
4	Bergur Snorrason	2136	C	2020-02-18 14:57:52

#	User	Length	Language	Date
1	Evan Michael Bailey	394	C++	2023-09-12 15:37:47
2	Dmitry Lyubshin	535	C++	2023-07-26 03:38:28
3	주때	555	C++	2020-03-02 16:16:40
4	Andreas Alberg	564	C++	2023-01-13 12:21:52
5	Lennart Meyling	567	C++	2024-06-19 12:15:03
6	Hao Du	584	C++	2022-05-14 13:54:35
7	Kiên Trịnh	626	C++	2020-08-21 20:54:32
8	Zijian Zhou	630	C++	2019-10-30 18:13:40
9	Cameron Custer	632	C++	2022-08-07 10:32:09
10	Yan Qval	634	C++	2018-10-07 01:35:29

#	User	Length	Language	Date
1	Bjørn Dons	1142	Go	2023-08-02 14:02:56

#	User	Length	Language	Date
1	Suhas T. Nagar	1136	Java	2022-12-23 03:03:24
2	Thore Husfeldt	1213	Java	2018-10-15 09:37:21
3	Alleb Zhang	1367	Java	2023-09-27 22:56:19
4	Alex Coleman	1535	Java	2022-08-07 09:16:07
5	Gustav Valentin Yde	1589	Java	2019-01-25 12:27:50
6	Benjamin Reidys	1823	Java	2019-10-18 18:42:27
7	Benjamin Klahn	1826	Java	2019-01-25 12:25:41
8	Arup Ratan Guha	2090	Java	2019-04-18 18:29:59
9	Michael O'Brien	2091	Java	2022-01-29 21:53:37
10	Åke Wettergren	2665	Java	2018-11-28 13:43:45

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	565	JavaScript (SpiderMonkey)	2023-08-14 20:13:35

#	User	Length	Language	Date
1	Jacob Huebner	1580	Kotlin	2022-02-15 04:38:09

#	User	Length	Language	Date
1	Thore Husfeldt	390	Python 2	2018-10-15 09:45:45
2	Olav Røthe Bakken	391	Python 2	2019-08-13 15:26:56
3	Andreas Björklund	415	Python 2	2019-01-14 19:48:16
4	Oskar Haarklou Veileborg	420	Python 2	2018-10-10 22:18:12
5	Søren Hjort	544	Python 2	2019-10-04 22:02:28
6	Måns Magnusson	580	Python 2	2018-10-08 12:19:52
7	Maj Stenmark	854	Python 2	2018-10-19 12:49:21

#	User	Length	Language	Date
1	Jonathan Cederlund	330	Python 3	2025-10-09 20:51:52
2	Ankur Garg	352	Python 3	2021-11-20 22:47:16
3	Hrant Hovhannisyan	455	Python 3	2025-10-24 10:39:12
4	Hidden user	485	Python 3	2022-08-18 09:29:25
5	Viktor Bello Thomsen	519	Python 3	2020-10-01 21:42:33
6	Gustavo Fadel	519	Python 3	2021-11-29 21:36:27
7	Dhaanish Kaja	558	Python 3	2022-02-06 23:25:50
8	Isaac Lee	675	Python 3	2025-07-19 22:33:45

#	User	Length	Language	Date
1	Daniel Anker Hermansen	15579	Rust	2025-05-27 12:37:50

Solution running time distribution