Problem J
Stack Construction — Problem Statistics

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Submissions	1043
Accepted submissions	321
Submission ratio	30.78%
Authors	308
Full solves [?]	189
Full solve Ratio	61.36%

#	User	Runtime	Language	Date
1	Mirel Cosulschi	0.06 s	C	2025-06-03 17:35:15
2	Ivan Petrov	0.12 s	C	2019-08-06 13:40:35

#	User	Runtime	Language	Date
1	Katie Messana	0.36 s	C#	2026-03-18 13:30:53
2	Hidden user	0.39 s	C#	2026-03-18 13:52:44
3	Katelyn Kramer	0.47 s	C#	2026-03-18 13:40:13
4	Collin Hale	0.47 s	C#	2026-03-18 13:42:04
5	Jacob Riedel	0.47 s	C#	2026-03-18 13:43:10
6	Owen White	0.47 s	C#	2026-03-18 13:43:17
7	Gabriel Rathke Bartholomay	0.47 s	C#	2026-03-18 13:43:58
8	Christopher J Walker	0.47 s	C#	2026-03-18 13:44:49
9	specK	0.47 s	C#	2026-03-18 13:46:21
10	Kayla Tornatore	0.47 s	C#	2026-03-18 13:46:24

#	User	Runtime	Language	Date
1	Hubert Teo	0.04 s	C++	2016-10-29 20:07:29
2	Nick Wu	0.04 s	C++	2020-07-03 03:09:06
3	RYAN ONG ZHENG XUN	0.04 s	C++	2024-03-04 09:16:25
4	Tomás Cariño	0.05 s	C++	2017-08-21 21:34:39
5	Reyno Tilikaynen	0.05 s	C++	2017-10-21 20:14:03
6	Jason Liu	0.05 s	C++	2023-05-01 06:04:11
7	David Sturgill	0.05 s	C++	2023-06-05 23:28:32
8	Tan Kwang Thiag	0.05 s	C++	2024-02-12 19:10:12
9	Yuto Watanabe	0.05 s	C++	2024-02-13 17:06:11
10	Gao Tianrun	0.05 s	C++	2024-02-15 04:18:20

#	User	Runtime	Language	Date
1	Bjørn Dons	0.07 s	Go	2023-07-27 19:36:30

#	User	Runtime	Language	Date
1	Hidden user	0.16 s	Java	2017-10-13 07:12:58
2	Ali Zarrini	0.16 s	Java	2017-11-10 05:20:40
3	Hidden user	0.17 s	Java	2018-03-26 08:07:52
4	Ronald Cruz	0.18 s	Java	2017-10-29 02:08:11
5	Igor Durovic	0.18 s	Java	2017-11-09 05:20:44
6	Jarrett Spiker	0.19 s	Java	2016-11-01 23:36:31
7	Eric Williamson	0.20 s	Java	2017-10-28 23:25:04
8	Daniel Moyer	0.20 s	Java	2017-10-29 00:48:34
9	Hidden user	0.24 s	Java	2026-03-18 11:31:40
10	Collin Hale	0.24 s	Java	2026-03-18 13:41:21

#	User	Runtime	Language	Date
1	David Schlyter	0.68 s	JavaScript (SpiderMonkey)	2017-10-24 10:58:33

#	User	Runtime	Language	Date
1	Jacob Huebner	0.37 s	Kotlin	2021-06-08 07:12:52
2	Danny Mittal	0.48 s	Kotlin	2024-09-28 19:34:27

#	User	Runtime	Language	Date
1	Måns Magnusson	0.53 s	Python 2	2018-11-15 17:42:03
2	Hidden user	1.38 s	Python 2	2018-12-16 23:05:31

#	User	Runtime	Language	Date
1	Bryce Crouse	0.17 s	Python 3	2025-11-08 02:06:45
2	Oskar Haarklou Veileborg	0.21 s	Python 3	2020-10-06 08:53:54
3	Nicholas Russell Saerang	0.45 s	Python 3	2023-07-23 20:18:17
4	Ram Basnet	0.45 s	Python 3	2023-12-17 21:22:32
5	Marian D.	0.48 s	Python 3	2023-11-24 09:18:08
6	Daniel Bogorad	0.49 s	Python 3	2025-07-13 05:02:11
7	Allan Kong	0.50 s	Python 3	2025-10-26 04:08:31
8	Clement Oh	0.51 s	Python 3	2024-02-13 05:52:58
9	Hrant Hovhannisyan	0.55 s	Python 3	2025-06-26 10:27:25
10	Tai Tze Kin	0.60 s	Python 3	2024-02-17 18:11:10

#	User	Length	Language	Date
1	Ivan Petrov	732	C	2019-08-06 13:40:35
2	Mirel Cosulschi	815	C	2025-06-03 17:35:15

#	User	Length	Language	Date
1	Katelyn Kramer	749	C#	2026-03-18 13:40:13
2	Collin Hale	749	C#	2026-03-18 13:42:04
3	Jacob Riedel	749	C#	2026-03-18 13:43:10
4	Owen White	749	C#	2026-03-18 13:43:17
5	Gabriel Rathke Bartholomay	749	C#	2026-03-18 13:43:58
6	Christopher J Walker	749	C#	2026-03-18 13:44:49
7	specK	749	C#	2026-03-18 13:46:21
8	Kayla Tornatore	749	C#	2026-03-18 13:46:24
9	Peyton	749	C#	2026-03-18 13:46:30
10	Makenna Griffith	749	C#	2026-03-18 13:46:42

#	User	Length	Language	Date
1	Katelyn Kramer	605	C++	2026-03-18 13:37:21
2	Owen White	605	C++	2026-03-18 13:40:05
3	Nicholas Garza	605	C++	2026-03-18 13:40:07
4	Gabriel Rathke Bartholomay	605	C++	2026-03-18 13:40:16
5	Collin Hale	605	C++	2026-03-18 13:40:27
6	Jacob Riedel	605	C++	2026-03-18 13:40:30
7	Ankit S. Thakuri	605	C++	2026-03-18 13:40:37
8	Christopher J Walker	605	C++	2026-03-18 13:41:28
9	Madison Koscielski	605	C++	2026-03-18 13:42:35
10	specK	605	C++	2026-03-18 13:43:25

#	User	Length	Language	Date
1	Bjørn Dons	1048	Go	2023-07-27 19:36:30

#	User	Length	Language	Date
1	specK	684	Java	2026-03-18 13:45:36
2	Peyton	684	Java	2026-03-18 13:45:44
3	Ankit S. Thakuri	685	Java	2026-03-18 13:46:09
4	Collin Hale	691	Java	2026-03-18 13:41:21
5	Ryan Sack	691	Java	2026-03-18 13:41:48
6	Owen White	691	Java	2026-03-18 13:42:01
7	Christopher J Walker	691	Java	2026-03-18 13:43:15
8	Nicholas Garza	691	Java	2026-03-18 13:44:33
9	Kayla Tornatore	691	Java	2026-03-18 13:44:38
10	Max Kerby	691	Java	2026-03-18 13:47:56

#	User	Length	Language	Date
1	David Schlyter	1790	JavaScript (SpiderMonkey)	2017-10-24 10:58:33

#	User	Length	Language	Date
1	Jacob Huebner	781	Kotlin	2021-06-08 07:12:52
2	Danny Mittal	844	Kotlin	2024-09-28 19:34:27

#	User	Length	Language	Date
1	Måns Magnusson	649	Python 2	2018-11-15 17:42:03
2	Hidden user	1367	Python 2	2018-12-16 16:59:34

#	User	Length	Language	Date
1	Clement Oh	373	Python 3	2023-09-29 07:37:06
2	Nicholas Russell Saerang	374	Python 3	2023-07-23 20:17:31
3	Marian D.	381	Python 3	2023-11-24 09:18:08
4	Daniel Bogorad	474	Python 3	2025-07-13 05:02:11
5	Tai Tze Kin	489	Python 3	2024-02-17 18:11:10
6	Hrant Hovhannisyan	559	Python 3	2025-06-26 10:27:25
7	Joshua Andersson	577	Python 3	2024-12-29 01:36:05
8	Ram Basnet	658	Python 3	2023-12-17 21:22:32
9	Oskar Haarklou Veileborg	708	Python 3	2020-10-06 08:53:54
10	Allan Kong	772	Python 3	2025-10-26 04:08:31

Solution running time distribution