Problem I
Kindergarten Excursion — Problem Statistics

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Submissions	4682
Accepted submissions	1479
Submission ratio	31.59%
Authors	1326
Full solves [?]	1109
Full solve Ratio	83.63%

#	User	Runtime	Language	Date
1	Oskar Werkelin Ahlin	0.00 s	C	2014-01-03 02:22:06
2	Jonas Höglund	0.01 s	C	2014-01-03 16:39:42
3	Bergur Snorrason	0.01 s	C	2019-01-09 11:17:11
4	Eyleifur Bjarkason	0.01 s	C	2019-01-09 13:56:37
5	Sindri Frostason	0.01 s	C	2019-01-27 22:07:26
6	Þórður Agust	0.01 s	C	2019-01-29 19:24:34
7	Yang Chenglong	0.01 s	C	2019-04-11 03:41:38
8	vance	0.01 s	C	2020-04-01 11:47:03
9	Ioannis Br	0.01 s	C	2020-07-13 22:39:08
10	Caleb Kraglund	0.01 s	C	2024-10-14 09:41:22

#	User	Runtime	Language	Date
1	Lukas Polacek	0.03 s	C#	2013-02-27 10:37:30
2	masosz	0.03 s	C#	2015-01-19 23:17:42
3	Krasimir Balchev	0.04 s	C#	2020-06-17 18:15:06
4	Nathan Andrews	0.06 s	C#	2024-08-28 02:18:34
5	Amirreza Taleb	0.07 s	C#	2023-07-06 21:43:27
6	Hidden user	0.07 s	C#	2023-07-07 19:39:28
7	Mati Rachamim	0.22 s	C#	2019-04-28 13:24:38

#	User	Runtime	Language	Date
1	Klas Björkqvist	0.01 s	C++	2011-09-19 21:05:44
2	Ulf Lundström	0.01 s	C++	2011-09-27 08:56:53
3	Johan Sannemo	0.01 s	C++	2011-10-09 10:48:02
4	Peter Ondrúška	0.01 s	C++	2011-10-16 13:37:53
5	Bogdan-Cristian Tataroiu	0.01 s	C++	2011-10-16 13:40:14
6	Felix Arends	0.01 s	C++	2011-10-16 14:19:50
7	Matvey Soloviev	0.01 s	C++	2011-10-16 15:04:10
8	Conor Muldoon	0.01 s	C++	2011-10-16 15:13:39
9	Cihat Imamoglu	0.01 s	C++	2012-02-24 21:03:29
10	Urban Pettersson	0.01 s	C++	2012-03-01 18:43:32

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Common Lisp	2019-07-28 05:28:41

#	User	Runtime	Language	Date
1	Nathan Lee	0.04 s	Go	2025-08-28 18:52:40
2	Norbert Voelker	0.08 s	Go	2022-02-03 19:25:05

#	User	Runtime	Language	Date
1	Hidden user	0.11 s	Haskell	2022-09-03 11:41:08

#	User	Runtime	Language	Date
1	Bjørn Dons	0.09 s	Java	2018-11-04 03:18:18
2	Hidden user	0.11 s	Java	2014-03-24 09:44:21
3	Jan Štola	0.11 s	Java	2015-06-09 08:38:20
4	Finn Lidbetter	0.11 s	Java	2016-08-25 16:07:50
5	Micah Stairs	0.11 s	Java	2016-10-20 17:06:51
6	Martijn Muijsers	0.11 s	Java	2016-11-08 21:52:31
7	William Fiset	0.11 s	Java	2017-02-21 22:51:04
8	Lizhong Wang	0.11 s	Java	2018-04-23 21:09:33
9	Eyleifur Bjarkason	0.11 s	Java	2019-01-09 14:03:37
10	Daniel Bernstein	0.12 s	Java	2011-10-21 02:55:55

#	User	Runtime	Language	Date
1	Urban Pettersson	0.10 s	JavaScript (Node.js)	2018-06-22 15:12:57
2	Martin Pettersson	0.15 s	JavaScript (Node.js)	2024-06-19 01:00:51
3	Peter Kedemo	0.45 s	JavaScript (Node.js)	2020-01-03 10:11:05

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.05 s	JavaScript (SpiderMonkey)	2023-05-30 02:06:32
2	Bjørn Chr. Soltvedt	0.10 s	JavaScript (SpiderMonkey)	2020-09-16 00:55:18

#	User	Runtime	Language	Date
1	Timothy Gaede	0.50 s	Julia	2025-09-26 07:05:16

#	User	Runtime	Language	Date
1	Phường Lên	0.30 s	Kotlin	2020-08-12 19:11:37
2	Adam Rankin	0.40 s	Kotlin	2023-10-23 03:21:25

#	User	Runtime	Language	Date
1	Joseph Chau	0.26 s	Lua	2024-01-26 05:32:10
2	Caleb Austin	0.28 s	Lua	2024-08-31 09:34:25

#	User	Runtime	Language	Date
1	Hidden user	0.81 s	Nim	2026-01-03 16:59:47

#	User	Runtime	Language	Date
1	WalkerKnapp	0.10 s	PHP	2024-04-02 23:40:05

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.60 s	Prolog	2022-08-11 09:19:14

#	User	Runtime	Language	Date
1	Oskar Werkelin Ahlin	0.04 s	Python 2	2011-09-18 18:05:24
2	Alexandre Loiko	0.04 s	Python 2	2012-02-06 18:21:24
3	Erik Odenman	0.04 s	Python 2	2015-06-09 20:29:33
4	Christofer Ohlsson	0.04 s	Python 2	2015-07-08 16:44:58
5	Jessica Fang	0.04 s	Python 2	2017-04-29 00:41:15
6	Maisam Arif	0.04 s	Python 2	2017-04-29 00:44:16
7	Rachel Campbell	0.04 s	Python 2	2017-04-29 00:59:33
8	Hermon Mulat	0.04 s	Python 2	2019-02-04 04:55:12
9	Lars Åström	0.05 s	Python 2	2019-06-11 20:10:33
10	Hidden user	0.06 s	Python 2	2017-07-03 11:59:47

#	User	Runtime	Language	Date
1	Erik Odenman	0.06 s	Python 3	2022-10-08 13:03:29
2	Khalil Alobeid	0.06 s	Python 3	2024-10-23 03:02:27
3	Xiang Ji	0.06 s	Python 3	2024-10-30 21:02:13
4	Sami Melhem	0.06 s	Python 3	2025-01-21 20:42:42
5	Nicolas Ladendorf	0.06 s	Python 3	2025-01-22 22:34:36
6	Tyson Long	0.06 s	Python 3	2025-01-23 21:25:58
7	Eduardo Alvarez Hernandez	0.06 s	Python 3	2025-01-27 23:13:37
8	Kiran Vengurlekar	0.06 s	Python 3	2025-01-29 23:09:22
9	Clement-Andi Edet	0.06 s	Python 3	2025-02-20 21:20:43
10	USaskAdvanced15	0.06 s	Python 3	2025-02-22 20:40:58

#	User	Runtime	Language	Date
1	Thomas Feld	0.34 s	Ruby	2023-01-05 14:03:25
2	Hidden user	0.48 s	Ruby	2019-04-01 11:07:07

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-02-18 19:49:35
2	Sindri Frostason	0.01 s	Rust	2019-01-27 22:12:13
3	Bas Dirks	0.01 s	Rust	2022-06-28 22:23:23
4	Artur Khuziakhmetov	0.01 s	Rust	2022-08-10 18:36:33
5	Hidden user	0.01 s	Rust	2024-12-24 00:56:21
6	Sherman Chann Zhi Shen	0.02 s	Rust	2021-09-20 08:25:36
7	Mckinley Xie	0.02 s	Rust	2025-01-19 03:37:15
8	Pahlevi Fikri Auliya	0.13 s	Rust	2020-10-28 00:32:51

#	User	Runtime	Language	Date
1	Ștefan-Iulian Alecu	0.07 s	Visual Basic	2025-11-05 21:41:11

#	User	Length	Language	Date
1	Reuben James Loquinario	294	C	2025-09-22 08:20:42
2	Oskar Werkelin Ahlin	369	C	2014-01-03 02:03:42
3	Sindri Frostason	443	C	2019-01-27 22:07:26
4	vance	557	C	2020-04-01 11:47:03
5	Caleb Kraglund	619	C	2024-10-14 09:41:22
6	Þórður Agust	634	C	2019-01-29 19:24:34
7	Yang Chenglong	844	C	2019-04-11 03:41:38
8	Ioannis Br	1084	C	2020-07-20 15:57:17
9	Lionel KITIHOUN	1099	C	2017-05-15 18:53:40
10	Yue Jiao	1101	C	2015-10-18 13:53:46

#	User	Length	Language	Date
1	Lukas Polacek	448	C#	2013-02-27 10:37:30
2	Nathan Andrews	655	C#	2024-08-28 02:24:45
3	Hidden user	729	C#	2023-07-07 19:52:34
4	Amirreza Taleb	773	C#	2023-07-06 21:43:27
5	Krasimir Balchev	859	C#	2020-06-17 18:15:06
6	Mati Rachamim	1195	C#	2019-04-28 14:13:07
7	masosz	2662	C#	2015-01-19 23:17:42

#	User	Length	Language	Date
1	Syx Pek	242	C++	2016-01-28 14:20:35
2	Hidden user	242	C++	2019-01-14 14:32:35
3	Hrant Hovhannisyan	272	C++	2017-06-17 09:43:19
4	Zane Yu	276	C++	2019-01-14 14:46:03
5	Muhammad Irham Rasyidi	289	C++	2017-08-10 07:53:45
6	Gabriel Gomez	289	C++	2025-01-19 06:49:26
7	Chase Hinesman	292	C++	2018-01-22 21:21:06
8	Ical Firdaus	295	C++	2016-01-28 14:06:39
9	Arturo Jesus Jara Huilca	296	C++	2021-12-27 05:39:20
10	Ben Wu	304	C++	2021-07-19 20:54:42

#	User	Length	Language	Date
1	Hidden user	461	Common Lisp	2019-07-28 05:23:38

#	User	Length	Language	Date
1	Norbert Voelker	583	Go	2022-02-03 19:25:05
2	Nathan Lee	680	Go	2025-08-28 18:52:40

#	User	Length	Language	Date
1	Hidden user	1389	Haskell	2022-09-03 11:41:08

#	User	Length	Language	Date
1	Reuben James Loquinario	402	Java	2025-09-22 08:15:21
2	Ricardo	446	Java	2021-01-30 07:44:37
3	Adarsh Koka	463	Java	2019-01-21 06:49:27
4	Khabiir Khan	491	Java	2022-11-22 04:31:57
5	Doug Goodman	497	Java	2018-01-23 19:50:32
6	Tamonash Chakraborty	517	Java	2021-05-18 08:35:25
7	Jenner Wile	541	Java	2016-02-22 21:04:16
8	Aman Gottumukkala	564	Java	2019-01-23 22:00:41
9	Akshay Gupta	569	Java	2017-10-30 18:02:51
10	Micah Stairs	583	Java	2016-10-20 17:06:51

#	User	Length	Language	Date
1	Peter Kedemo	454	JavaScript (Node.js)	2020-01-03 10:11:05
2	Urban Pettersson	553	JavaScript (Node.js)	2018-06-22 15:12:57
3	Martin Pettersson	805	JavaScript (Node.js)	2024-06-19 01:00:51

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	289	JavaScript (SpiderMonkey)	2020-09-16 00:55:18
2	Christian Pilegaard Cederquist	346	JavaScript (SpiderMonkey)	2023-05-30 02:06:32

#	User	Length	Language	Date
1	Timothy Gaede	1195	Julia	2025-09-26 07:05:16

#	User	Length	Language	Date
1	Adam Rankin	565	Kotlin	2023-10-23 03:21:25
2	Phường Lên	1810	Kotlin	2020-08-12 19:11:37

#	User	Length	Language	Date
1	Joseph Chau	420	Lua	2024-01-26 05:32:10
2	Caleb Austin	490	Lua	2024-08-31 09:34:25

#	User	Length	Language	Date
1	Hidden user	800	Nim	2026-01-03 16:59:47

#	User	Length	Language	Date
1	WalkerKnapp	677	PHP	2024-04-02 23:40:05

#	User	Length	Language	Date
1	Andriy Zyevakov	2365	Prolog	2022-08-11 09:19:14

#	User	Length	Language	Date
1	Erik Odenman	97	Python 2	2015-06-09 20:36:41
2	Thomas Feld	180	Python 2	2020-08-27 12:54:25
3	Lars Åström	192	Python 2	2019-06-11 20:10:33
4	Hidden user	209	Python 2	2018-01-26 08:41:35
5	Oskar Werkelin Ahlin	215	Python 2	2011-09-18 18:05:24
6	Hidden user	229	Python 2	2017-07-03 11:59:47
7	Andreas Björklund	237	Python 2	2019-05-18 16:37:42
8	Rachel Campbell	253	Python 2	2017-04-29 00:59:33
9	Jessica Fang	272	Python 2	2017-04-29 00:41:15
10	Maisam Arif	276	Python 2	2017-04-29 00:44:16

#	User	Length	Language	Date
1	Farzam Abrishami	70	Python 3	2024-01-26 20:50:47
2	Erik Odenman	71	Python 3	2022-10-08 13:03:29
3	Benjamin Z White	71	Python 3	2023-07-23 03:01:36
4	Ahmed Chamseddine	114	Python 3	2025-07-01 01:14:14
5	Lee Isaac	125	Python 3	2021-08-17 00:44:56
6	Rafael Kristoforus Yanto	132	Python 3	2025-02-21 19:06:30
7	Hidden user	133	Python 3	2022-01-30 02:21:50
8	Clement Oh	133	Python 3	2023-08-20 16:27:12
9	Peter Stauder	139	Python 3	2023-05-23 09:15:57
10	Srikar Gutta	142	Python 3	2021-01-26 15:03:36

#	User	Length	Language	Date
1	Thomas Feld	63	Ruby	2023-01-05 15:16:31
2	Hidden user	238	Ruby	2019-04-01 11:07:07

#	User	Length	Language	Date
1	Artur Khuziakhmetov	367	Rust	2022-08-10 18:36:33
2	Hidden user	519	Rust	2024-12-24 00:56:21
3	Bas Dirks	688	Rust	2022-06-28 22:34:42
4	Sindri Frostason	750	Rust	2019-01-27 22:12:13
5	Mckinley Xie	1182	Rust	2025-01-19 03:37:15
6	Sherman Chann Zhi Shen	1296	Rust	2021-09-20 08:25:36
7	Pahlevi Fikri Auliya	2429	Rust	2020-10-28 00:32:51
8	Vincent Lagerros	5982	Rust	2024-09-21 16:27:23

#	User	Length	Language	Date
1	Ștefan-Iulian Alecu	343	Visual Basic	2025-11-05 21:41:11

Solution running time distribution