Problem I
Terraces — Problem Statistics

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Submissions	4647
Accepted submissions	1576
Submission ratio	33.91%
Authors	1391
Full solves [?]	1155
Full solve Ratio	83.03%

#	User	Runtime	Language	Date
1	Eyleifur Bjarkason	0.01 s	C	2020-10-20 19:17:53
2	Bergur Snorrason	0.01 s	C	2020-10-23 09:09:13
3	Lavangi Yadava	0.01 s	C	2025-10-30 02:44:52
4	Olav Røthe Bakken	0.02 s	C	2018-01-17 09:23:53
5	Hidden user	0.02 s	C	2020-07-23 09:14:10
6	pengin	0.02 s	C	2021-08-17 10:48:41
7	Xiaochi Wang	0.02 s	C	2022-08-10 10:32:37
8	Otávio Inácio de Oliveira	0.03 s	C	2025-07-31 02:08:22
9	Jesper Öqvist	0.15 s	C	2018-03-27 21:39:32

#	User	Runtime	Language	Date
1	Henry Platt	0.08 s	C#	2024-07-03 22:42:42
2	João Vitor Averaldo	0.08 s	C#	2025-07-12 18:05:23
3	Shehan Perera	0.08 s	C#	07:38:18
4	Alexiz Karlssson	0.09 s	C#	2025-05-12 13:29:54
5	Abdullah Alghouthani	0.11 s	C#	2022-08-31 14:38:35
6	Garway Mei	0.29 s	C#	2019-11-15 13:10:36
7	Makame Makame	0.36 s	C#	2022-03-06 17:37:01

#	User	Runtime	Language	Date
1	Lingsong Zeng	0.01 s	C++	2017-03-18 20:20:09
2	Bo Zhou	0.01 s	C++	2017-03-18 21:29:23
3	Lee Yu Choy	0.01 s	C++	2017-12-06 15:58:18
4	YanHao Ling	0.01 s	C++	2018-01-02 08:33:32
5	Johan Wind	0.01 s	C++	2018-03-26 12:51:13
6	Dmitry Lyubshin	0.01 s	C++	2018-03-26 18:36:07
7	Michael Pfeifer	0.01 s	C++	2018-04-01 05:54:01
8	Teh Nian Fei	0.01 s	C++	2018-04-05 12:36:30
9	Si Jie Lin	0.01 s	C++	2018-04-05 14:20:57
10	Hidden user	0.01 s	C++	2018-04-06 02:55:35

#	User	Runtime	Language	Date
1	Norbert Voelker	0.25 s	Go	2022-05-04 20:46:34
2	sagar tungal	0.47 s	Go	2023-07-04 22:08:13
3	Shruti Patil	0.48 s	Go	2023-07-04 22:09:31

#	User	Runtime	Language	Date
1	Shreyas Jamadagni	0.08 s	Java	2024-10-26 17:16:03
2	Sven Rönnbäck	0.08 s	Java	2025-01-05 15:44:40
3	Samuel Klingström	0.14 s	Java	2017-08-10 23:53:53
4	Mouad Naciri	0.14 s	Java	2018-12-07 08:42:18
5	Crystal Sharpe	0.14 s	Java	2020-08-06 01:39:27
6	Nguyễn Hùng Cường	0.15 s	Java	2018-10-03 14:49:27
7	Bjørn Dons	0.15 s	Java	2019-04-22 22:47:45
8	Ronald Rojas	0.18 s	Java	2017-03-18 21:37:33
9	analemma	0.18 s	Java	2023-11-13 06:51:50
10	Troy Purvis	0.19 s	Java	2021-04-13 09:59:57

#	User	Runtime	Language	Date
1	Martin Sjöborg	0.09 s	JavaScript (Node.js)	2024-05-26 10:10:25

#	User	Runtime	Language	Date
1	Peter Kedemo	0.10 s	JavaScript (SpiderMonkey)	2017-03-19 14:25:04
2	Christian Pilegaard Cederquist	0.21 s	JavaScript (SpiderMonkey)	2023-07-30 12:49:08
3	Bjørn Chr. Soltvedt	0.52 s	JavaScript (SpiderMonkey)	2020-03-16 01:07:30

#	User	Runtime	Language	Date
1	Hidden user	0.35 s	Kotlin	2020-04-30 22:41:48
2	Adam Rankin	0.83 s	Kotlin	2023-09-10 04:24:11
3	Min-Zheng Shieh	0.96 s	Kotlin	2021-03-21 07:02:41
4	Jake Bounds	2.00 s	Kotlin	2024-10-15 05:16:05

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.63 s	Lua	2023-11-14 01:13:15

#	User	Runtime	Language	Date
1	Xiu-Heng Hua	0.15 s	OCaml	2025-02-05 11:33:08

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.10 s	Pascal	2018-10-12 09:25:38

#	User	Runtime	Language	Date
1	Ciara Godwin	0.08 s	Python 2	2018-04-25 13:19:59
2	Cian Ruane	0.10 s	Python 2	2018-04-25 12:46:23
3	Noah Ó Donnaile	0.10 s	Python 2	2018-04-25 14:23:24
4	Victor Zheng	0.12 s	Python 2	2017-03-19 19:06:22
5	Andreas Björklund	0.12 s	Python 2	2019-07-27 07:05:58
6	Johan Lyts	0.12 s	Python 2	2020-10-24 12:52:26
7	Maj Stenmark	0.14 s	Python 2	2018-03-26 18:10:48
8	Fatima Afzali	0.16 s	Python 2	2018-09-08 18:13:06
9	Agis Daniels	0.16 s	Python 2	2020-03-29 15:40:03
10	Hermon Mulat	0.19 s	Python 2	2018-12-19 22:09:30

#	User	Runtime	Language	Date
1	Ramez Mosad	0.10 s	Python 3	2023-11-27 04:52:12
2	Amy Chen	0.10 s	Python 3	2023-11-27 05:45:48
3	Ron Natarajan	0.10 s	Python 3	2024-10-31 20:02:43
4	Alex Tu	0.10 s	Python 3	2024-11-01 02:09:55
5	Alex Park	0.10 s	Python 3	2024-11-01 02:34:55
6	Adithya Palaniappan Ramesh	0.10 s	Python 3	2025-10-31 00:47:21
7	Abhiram Dasari	0.10 s	Python 3	2025-10-31 02:24:20
8	Oskar Mevik Päts	0.11 s	Python 3	2022-02-20 16:53:46
9	Laura Weinschrott	0.11 s	Python 3	2023-04-10 20:05:15
10	Benjamin Leczki	0.11 s	Python 3	2023-08-09 15:40:50

#	User	Runtime	Language	Date
1	Klas af Geijerstam	0.01 s	Rust	2023-06-02 12:31:44
2	Lukas Dutrieux	0.01 s	Rust	2025-10-25 18:54:03
3	Eric Pinter	0.02 s	Rust	2021-10-09 20:45:53
4	Akemi Izuko	0.02 s	Rust	2022-10-10 04:32:02

#	User	Length	Language	Date
1	pengin	1242	C	2021-08-17 10:48:41
2	Olav Røthe Bakken	1788	C	2018-01-17 09:23:53
3	Hidden user	1814	C	2020-07-23 09:14:10
4	Xiaochi Wang	2038	C	2022-08-10 10:32:37
5	Otávio Inácio de Oliveira	2239	C	2025-07-31 02:08:22
6	Bergur Snorrason	2574	C	2020-10-23 09:09:13
7	Lavangi Yadava	2672	C	2025-10-30 02:44:52
8	Jesper Öqvist	2924	C	2018-03-27 21:39:32
9	Eyleifur Bjarkason	9535	C	2020-10-20 19:18:28

#	User	Length	Language	Date
1	João Vitor Averaldo	1955	C#	2025-07-12 18:06:29
2	Garway Mei	2090	C#	2019-11-15 13:10:36
3	Alexiz Karlssson	3149	C#	2025-05-12 13:29:54
4	Henry Platt	3578	C#	2024-07-03 22:42:42
5	Shehan Perera	4283	C#	07:38:18
6	Abdullah Alghouthani	4734	C#	2022-08-31 14:38:35
7	Makame Makame	5765	C#	2022-03-06 17:37:01

#	User	Length	Language	Date
1	Hưng Phạm	725	C++	2018-10-03 03:24:25
2	Huy Phạm	765	C++	2022-05-20 13:58:34
3	Roger Chen	788	C++	2022-10-24 13:41:15
4	Yeung Man Tsung	836	C++	2022-11-25 07:39:59
5	陳楷元	841	C++	2024-03-25 15:11:19
6	Alin Odobescu	843	C++	2022-09-01 16:12:59
7	Jiang Yue	844	C++	2018-01-21 10:04:55
8	Victor Lecomte	886	C++	2017-03-18 19:38:52
9	Teikn Smith	892	C++	2024-06-12 14:50:53
10	Artemis Ngoh	911	C++	2022-10-07 16:26:03

#	User	Length	Language	Date
1	Norbert Voelker	1582	Go	2022-05-04 20:46:34
2	sagar tungal	2794	Go	2023-07-04 21:52:26
3	Shruti Patil	2838	Go	2023-07-04 22:09:31

#	User	Length	Language	Date
1	Jiru Xu	1185	Java	2017-09-15 04:46:48
2	Doug Goodman	1211	Java	2018-05-24 13:32:25
3	Matthew Stewart	1241	Java	2018-01-31 00:55:55
4	Yuki Okamoto	1275	Java	2023-02-10 22:59:12
5	Mark Wen	1448	Java	2021-04-10 18:37:37
6	Anthony Li	1466	Java	2022-10-15 17:19:27
7	Ronald Rojas	1521	Java	2017-03-18 21:37:33
8	Emilie Hyslop	1523	Java	2021-11-29 04:49:21
9	Pedro Contipelli	1568	Java	2017-09-18 03:57:43
10	Mido Alzafa	1568	Java	2022-10-15 21:09:41

#	User	Length	Language	Date
1	Martin Sjöborg	1804	JavaScript (Node.js)	2024-05-26 10:10:25

#	User	Length	Language	Date
1	Peter Kedemo	1375	JavaScript (SpiderMonkey)	2017-03-19 14:25:04
2	Bjørn Chr. Soltvedt	1495	JavaScript (SpiderMonkey)	2020-03-16 01:07:30
3	Christian Pilegaard Cederquist	1885	JavaScript (SpiderMonkey)	2023-07-30 12:49:08

#	User	Length	Language	Date
1	Jake Bounds	1580	Kotlin	2024-10-15 05:16:05
2	Min-Zheng Shieh	2288	Kotlin	2021-03-21 07:02:41
3	Hidden user	2863	Kotlin	2020-04-30 22:41:48
4	Adam Rankin	2891	Kotlin	2023-09-10 04:24:11

#	User	Length	Language	Date
1	Shehab Ahmed Hatem	2328	Lua	2023-11-14 01:13:15

#	User	Length	Language	Date
1	Xiu-Heng Hua	1496	OCaml	2025-02-05 11:33:08

#	User	Length	Language	Date
1	Ingemar Ragnemalm	2155	Pascal	2018-10-12 09:25:38

#	User	Length	Language	Date
1	Victor Zheng	689	Python 2	2017-03-19 19:06:22
2	Ciara Godwin	818	Python 2	2018-04-25 13:17:48
3	Justin Su	901	Python 2	2018-11-05 10:13:23
4	Andreas Björklund	905	Python 2	2019-07-27 07:05:58
5	Fatima Afzali	936	Python 2	2018-09-08 18:13:06
6	Lars Åström	994	Python 2	2018-03-26 22:59:45
7	Cian Ruane	1046	Python 2	2018-04-25 12:46:23
8	Maj Stenmark	1102	Python 2	2018-03-26 18:10:48
9	Noah Ó Donnaile	1113	Python 2	2018-04-25 14:28:29
10	Alexander Hansson	1140	Python 2	2018-03-26 19:23:27

#	User	Length	Language	Date
1	Michael Goldwasser	349	Python 3	2024-10-14 23:00:28
2	Lukas Kerren	423	Python 3	2025-03-16 21:12:13
3	Victor Zheng	627	Python 3	2017-03-19 18:35:47
4	Hua Fan Cai	627	Python 3	2017-03-19 18:45:38
5	Benjamin Z White	706	Python 3	2023-10-01 19:03:26
6	Raymond Yang	740	Python 3	2019-04-07 22:15:06
7	alexandre dewilde	767	Python 3	2023-08-01 15:36:16
8	Quinn Flavel	770	Python 3	2023-10-20 07:28:46
9	Yucheng Niu	779	Python 3	2019-04-06 19:51:33
10	Måns Magnusson	795	Python 3	2017-09-26 07:25:53

#	User	Length	Language	Date
1	Eric Pinter	3150	Rust	2021-10-09 20:45:53
2	Akemi Izuko	3765	Rust	2022-10-10 04:32:02
3	Lukas Dutrieux	4361	Rust	2025-10-25 18:54:03
4	Klas af Geijerstam	13727	Rust	2023-06-02 12:31:44

Solution running time distribution