Problem A
Building Highways — Problem Statistics

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Submissions	2547
Accepted submissions	2375
Submission ratio	93.25%
Authors	758
Full solves [?]	642
Full solve Ratio	84.70%

#	User	Score	Language	Date
1	cera	100	APL	2024-10-24 22:26:06
2	Thomas Feld	0	APL	2023-03-16 09:19:03

#	User	Score	Language	Date
1	Chenzhang Hu	100	Bash	2024-04-01 17:29:34

#	User	Score	Language	Date
1	Leslie Yip	100	C	2023-03-21 11:20:15
2	紅茶	100	C	2023-08-28 00:06:22
3	Johannes Lindblom	100	C	2023-12-28 23:28:02
4	Jón Steinn Elíasson	100	C	2024-10-04 23:49:12
5	Mirel Cosulschi	100	C	2025-03-25 14:40:01
6	Benjamin Lehmann	100	C	2025-08-25 03:03:13
7	Justin Sinjari	30	C	2023-11-24 05:29:10
8	Alexander Hall	30	C	2024-06-25 07:52:45
9	Naveen Kumar S	30	C	2025-04-06 13:33:32
10	HARITHA S R	30	C	2025-04-07 08:22:45

#	User	Score	Language	Date
1	Erik Kristian Gylling	100	C#	2023-11-12 15:10:57
2	Gregory Sinclair	100	C#	2023-11-30 04:35:05
3	Marcus Östling	100	C#	2024-03-31 21:04:18
4	traxex	100	C#	2024-05-27 08:05:25
5	Maykal Droshev	30	C#	2023-06-23 15:35:22
6	Simon Lixenfeld	30	C#	2023-07-31 20:17:35
7	Roberto Rodriguez Giorgetti	30	C#	2024-10-02 19:20:01
8	Inge Amdal Halvorsen	0	C#	2025-02-10 15:23:00
9	Johan Nilsson	0	C#	2025-07-25 07:32:22

#	User	Score	Language	Date
1	Oisín Mac Fhearaí	100	Crystal	2024-08-26 12:06:27

#	User	Score	Language	Date
1	Magnus Baasch Langkilde	30	F#	2025-03-30 19:11:42

#	User	Score	Language	Date
1	Norbert Voelker	100	Go	2023-03-12 12:41:35
2	Ian Howell	30	Go	2023-04-20 22:43:14

#	User	Score	Language	Date
1	Hidden user	100	Haskell	2023-03-12 09:58:35
2	Brent Yorgey	100	Haskell	2023-03-12 19:27:44
3	Sebastian Banert	100	Haskell	2023-04-22 12:54:27
4	Ng Tek In	100	Haskell	2023-08-17 17:34:58
5	Charley Sheaffer	100	Haskell	2023-11-02 18:02:31
6	Steinar Simonnes	100	Haskell	2024-01-31 15:16:30
7	Evgeny Petrovsky	100	Haskell	2024-11-17 12:47:08
8	Daniël Barenholz	100	Haskell	2025-02-18 11:14:43
9	Hidden user	30	Haskell	2024-04-15 21:49:38
10	Adam Yaser Sweilem	0	Haskell	2025-02-08 16:18:46

#	User	Score	Language	Date
1	Christian Pilegaard Cederquist	100	JavaScript (SpiderMonkey)	2023-03-13 00:11:50
2	Bjørn Chr. Soltvedt	100	JavaScript (SpiderMonkey)	2023-03-16 17:37:19
3	Zach Tschetter	100	JavaScript (SpiderMonkey)	2023-07-05 00:19:25
4	Jimmy Gustafsson	100	JavaScript (SpiderMonkey)	2024-07-21 16:09:08
5	Jose Villegas	100	JavaScript (SpiderMonkey)	2025-02-09 06:21:08

#	User	Score	Language	Date
1	Tan Rayen	0	Julia	2023-05-18 18:03:03
2	Timothy Gaede	0	Julia	2024-04-09 16:06:35

#	User	Score	Language	Date
1	Emil Wihlander	100	Kotlin	2023-07-25 21:32:56
2	Martijn Muijsers	100	Kotlin	2024-05-31 20:16:15
3	Hidden user	100	Kotlin	2025-07-01 14:36:39
4	Adam Rankin	100	Kotlin	2026-01-15 05:53:59

#	User	Score	Language	Date
1	SpeedySebas	100	Lua	2025-01-22 16:06:47
2	Matthew Farshad	30	Lua	2025-02-10 20:53:02

#	User	Score	Language	Date
1	Hidden user	100	OCaml	2024-04-13 10:05:59
2	Hidden user	100	OCaml	2024-09-12 21:09:54

#	User	Score	Language	Date
1	屏翰 张	100	Odin	2026-03-03 16:48:44

#	User	Score	Language	Date
1	Andre Wahyudi	100	PHP	2023-03-13 05:24:35
2	Renate	100	PHP	2023-07-15 22:40:07
3	Victor Santos	100	PHP	2024-04-18 19:24:15

#	User	Score	Language	Date
1	Yanmarshus Bachtiar	100	Python 2	2023-07-11 12:01:04

#	User	Score	Language	Date
1	Thomas Feld	100	Ruby	2023-03-16 08:59:17
2	Chenzhang Hu	100	Ruby	2025-09-22 18:04:52

#	User	Runtime	Language	Date
1	cera	0.08 s	APL	2024-10-24 22:26:06

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.16 s	Bash	2024-05-28 19:07:57

#	User	Runtime	Language	Date
1	Jón Steinn Elíasson	0.00 s	C	2024-10-04 23:49:12
2	Leslie Yip	0.02 s	C	2023-03-21 11:20:15
3	紅茶	0.02 s	C	2023-08-28 00:06:22
4	Johannes Lindblom	0.02 s	C	2023-12-28 23:28:02
5	Mirel Cosulschi	0.04 s	C	2025-03-25 14:40:01
6	Benjamin Lehmann	0.04 s	C	2025-08-25 03:03:13

#	User	Runtime	Language	Date
1	Erik Kristian Gylling	0.08 s	C#	2023-11-12 15:10:57
2	Gregory Sinclair	0.09 s	C#	2023-11-30 04:35:05
3	traxex	0.09 s	C#	2024-05-27 08:05:25
4	Marcus Östling	0.15 s	C#	2024-03-31 21:04:18

#	User	Runtime	Language	Date
1	Maxwell Penders	0.00 s	C++	2023-03-12 20:30:20
2	Alexander Kravberg	0.00 s	C++	2023-07-02 15:36:20
3	Poh Bao Hua, Benjamin	0.01 s	C++	2022-10-18 14:28:09
4	Tay Yu Yang	0.01 s	C++	2022-10-22 02:48:08
5	Benjamin Long Wei Ming	0.01 s	C++	2022-10-22 03:07:40
6	Gan Zhen Yang	0.01 s	C++	2022-10-22 05:51:23
7	Umair Yusof	0.01 s	C++	2022-10-22 06:56:40
8	Yeoh Jun Ting	0.01 s	C++	2022-10-22 16:58:21
9	Aung Phone Naing	0.01 s	C++	2022-11-03 06:22:08
10	Linus Puah	0.01 s	C++	2022-11-04 17:33:01

#	User	Runtime	Language	Date
1	Oisín Mac Fhearaí	0.18 s	Crystal	2024-08-26 12:06:27

#	User	Runtime	Language	Date
1	Norbert Voelker	0.03 s	Go	2023-03-12 12:41:35

#	User	Runtime	Language	Date
1	Brent Yorgey	0.05 s	Haskell	2023-03-12 19:27:44
2	Daniël Barenholz	0.32 s	Haskell	2025-02-18 11:14:43
3	Sebastian Banert	0.36 s	Haskell	2023-04-22 12:54:27
4	Steinar Simonnes	0.38 s	Haskell	2024-01-31 15:16:30
5	Charley Sheaffer	0.42 s	Haskell	2023-11-02 18:02:31
6	Ng Tek In	0.46 s	Haskell	2023-08-17 17:36:10
7	Evgeny Petrovsky	0.59 s	Haskell	2024-11-17 12:47:08
8	Hidden user	0.72 s	Haskell	2023-03-12 09:58:35

#	User	Runtime	Language	Date
1	Tan Zhang-Hng Ervin	0.06 s	Java	2024-11-13 19:20:48
2	Sven Rönnbäck	0.07 s	Java	2023-03-16 20:53:49
3	Ryan Tan	0.08 s	Java	2022-04-24 18:43:14
4	Bjørn Dons	0.09 s	Java	2023-03-12 20:40:23
5	Crystal Sharpe	0.09 s	Java	2023-08-30 05:17:47
6	Ku Brian	0.20 s	Java	2024-05-12 12:13:25
7	Lim Shao Qi	0.20 s	Java	2024-11-11 19:18:09
8	Mack Wong Yoong Yee	0.21 s	Java	2024-07-04 15:11:53
9	Issa Issack	0.21 s	Java	2024-11-23 05:11:47
10	Ranjith M	0.22 s	Java	2024-12-18 04:33:45

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.06 s	JavaScript (SpiderMonkey)	2023-03-13 00:11:50
2	Jimmy Gustafsson	0.08 s	JavaScript (SpiderMonkey)	2024-07-21 16:09:08
3	Bjørn Chr. Soltvedt	0.09 s	JavaScript (SpiderMonkey)	2023-03-16 17:37:19
4	Zach Tschetter	0.09 s	JavaScript (SpiderMonkey)	2023-07-05 00:19:25
5	Jose Villegas	0.10 s	JavaScript (SpiderMonkey)	2025-02-09 06:21:08

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.40 s	Kotlin	2024-05-31 20:16:15
2	Emil Wihlander	0.41 s	Kotlin	2023-07-25 21:32:56
3	Adam Rankin	0.49 s	Kotlin	2026-01-15 05:53:59
4	Hidden user	0.52 s	Kotlin	2025-07-01 14:36:39

#	User	Runtime	Language	Date
1	SpeedySebas	0.08 s	Lua	2025-01-22 16:06:47

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	OCaml	2024-09-12 21:09:54
2	Hidden user	0.04 s	OCaml	2024-04-13 10:05:59

#	User	Runtime	Language	Date
1	屏翰 张	0.01 s	Odin	2026-03-03 16:48:44

#	User	Runtime	Language	Date
1	Victor Santos	0.06 s	PHP	2024-04-18 19:24:15
2	Renate	0.23 s	PHP	2023-07-15 22:40:07
3	Andre Wahyudi	0.24 s	PHP	2023-03-13 05:24:35

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.08 s	Python 2	2023-07-11 12:01:04

#	User	Runtime	Language	Date
1	Jón Steinn Elíasson	0.06 s	Python 3	2024-10-04 19:52:49
2	Petr	0.06 s	Python 3	2024-10-26 16:23:25
3	Arnav Sastry	0.07 s	Python 3	2023-03-11 23:14:45
4	Peter Stauder	0.07 s	Python 3	2023-03-12 15:23:53
5	Vincent Tandya	0.07 s	Python 3	2023-03-17 20:09:20
6	Freek van Keulen	0.07 s	Python 3	2023-03-18 16:56:14
7	Gray Greenridge	0.07 s	Python 3	2023-03-21 03:35:40
8	Victor Vatn	0.07 s	Python 3	2023-03-29 11:27:38
9	Jakob Israelsen	0.07 s	Python 3	2023-03-30 15:52:23
10	Joshua Williams	0.07 s	Python 3	2023-04-20 01:00:40

#	User	Runtime	Language	Date
1	Thomas Feld	0.12 s	Ruby	2023-03-16 08:59:17
2	Chenzhang Hu	0.21 s	Ruby	2025-09-22 18:04:52

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-02-02 16:44:55
2	Artur Khuziakhmetov	0.00 s	Rust	2025-12-23 08:42:25
3	Jonathan Hallström	0.01 s	Rust	2023-03-12 19:14:16
4	Isak Jägberg	0.01 s	Rust	2023-03-31 15:10:00
5	Hidden user	0.01 s	Rust	2023-04-29 20:19:21
6	Sanjay Yepuri	0.01 s	Rust	2023-05-31 03:20:52
7	David Rasch	0.01 s	Rust	2023-08-14 13:44:28
8	Bas Dirks	0.01 s	Rust	2023-12-25 15:56:46
9	cera	0.01 s	Rust	2024-10-22 19:12:01
10	Azeez Daoud	0.01 s	Rust	2025-01-01 11:38:59

#	User	Length	Language	Date
1	cera	69	APL	2024-10-24 23:24:05

#	User	Length	Language	Date
1	Chenzhang Hu	50	Bash	2025-09-13 03:37:27

#	User	Length	Language	Date
1	Leslie Yip	324	C	2023-03-21 11:20:15
2	紅茶	392	C	2023-08-28 00:06:22
3	Mirel Cosulschi	419	C	2025-03-25 14:40:01
4	Johannes Lindblom	442	C	2023-12-28 23:28:02
5	Benjamin Lehmann	537	C	2025-08-25 03:03:13
6	Jón Steinn Elíasson	1567	C	2024-10-04 23:49:12

#	User	Length	Language	Date
1	Gregory Sinclair	155	C#	2023-11-30 04:35:05
2	traxex	226	C#	2024-05-27 08:05:25
3	Erik Kristian Gylling	619	C#	2023-11-12 15:10:57
4	Marcus Östling	2420	C#	2024-03-31 21:04:18

#	User	Length	Language	Date
1	Tan Keng Yong	130	C++	2022-10-29 11:37:42
2	Tyler Fernando	131	C++	2023-07-05 08:13:31
3	Jordan A Hopkins	202	C++	2023-07-20 17:27:49
4	Tay Yu Yang	211	C++	2022-10-22 06:17:00
5	Ng Mun Hin	246	C++	2025-12-18 16:49:27
6	Chuah Wan Juin	252	C++	2022-11-05 03:32:29
7	dimas bayu	255	C++	2025-10-31 09:46:41
8	Grae Yeandle	263	C++	2023-03-13 16:11:19
9	Yeung Man Tsung	263	C++	2023-04-23 08:19:49
10	Jesús Pacheco Alonso	281	C++	2024-11-05 10:21:12

#	User	Length	Language	Date
1	Oisín Mac Fhearaí	136	Crystal	2024-08-26 12:06:27

#	User	Length	Language	Date
1	Norbert Voelker	619	Go	2023-03-12 12:41:35

#	User	Length	Language	Date
1	Sebastian Banert	117	Haskell	2023-04-22 12:54:27
2	Charley Sheaffer	143	Haskell	2023-11-02 18:02:31
3	Steinar Simonnes	163	Haskell	2024-01-31 15:16:30
4	Hidden user	202	Haskell	2023-03-12 09:58:35
5	Evgeny Petrovsky	490	Haskell	2024-11-17 12:47:08
6	Ng Tek In	590	Haskell	2023-08-17 17:34:58
7	Daniël Barenholz	942	Haskell	2025-02-18 11:14:43
8	Brent Yorgey	9564	Haskell	2023-03-12 19:27:44

#	User	Length	Language	Date
1	Hridyanshu Aatreya	299	Java	2023-04-05 00:05:15
2	Benjamin Wen	469	Java	2023-04-13 14:57:13
3	Simon Baeckelant	483	Java	2023-11-02 21:28:56
4	Andreas Eriksen	501	Java	2023-03-17 14:13:50
5	Brian Kim	517	Java	2023-10-08 04:54:56
6	Ian Jones	531	Java	2023-03-12 07:34:37
7	Sohail Saghar	535	Java	2023-03-27 19:31:04
8	Crystal Sharpe	564	Java	2023-08-30 05:17:47
9	Doug Goodman	575	Java	2023-04-29 19:29:59
10	Miljan Mladenovic	588	Java	2023-04-06 11:32:51

#	User	Length	Language	Date
1	Jimmy Gustafsson	86	JavaScript (SpiderMonkey)	2024-07-21 16:09:08
2	Bjørn Chr. Soltvedt	161	JavaScript (SpiderMonkey)	2023-03-16 17:37:19
3	Zach Tschetter	170	JavaScript (SpiderMonkey)	2023-07-05 00:19:25
4	Jose Villegas	256	JavaScript (SpiderMonkey)	2025-02-09 06:21:08
5	Christian Pilegaard Cederquist	361	JavaScript (SpiderMonkey)	2023-03-13 00:11:50

#	User	Length	Language	Date
1	Hidden user	211	Kotlin	2025-07-01 14:36:39
2	Emil Wihlander	285	Kotlin	2023-07-25 21:32:56
3	Adam Rankin	315	Kotlin	2026-01-15 05:53:59
4	Martijn Muijsers	436	Kotlin	2024-05-31 20:16:15

#	User	Length	Language	Date
1	SpeedySebas	401	Lua	2025-01-22 16:06:47

#	User	Length	Language	Date
1	Hidden user	265	OCaml	2024-09-12 21:09:54
2	Hidden user	424	OCaml	2024-04-13 10:05:59

#	User	Length	Language	Date
1	屏翰 张	894	Odin	2026-03-03 16:48:44

#	User	Length	Language	Date
1	Renate	238	PHP	2023-07-15 22:40:07
2	Victor Santos	417	PHP	2024-04-18 19:24:15
3	Andre Wahyudi	788	PHP	2023-03-13 05:24:35

#	User	Length	Language	Date
1	Yanmarshus Bachtiar	107	Python 2	2023-07-11 12:01:04

#	User	Length	Language	Date
1	Clement Oh	63	Python 3	2023-05-14 05:45:26
2	Wouter Dijkstra	63	Python 3	2023-11-10 07:18:24
3	Benjamin Z White	64	Python 3	2023-04-14 16:25:27
4	Harry Zhang	66	Python 3	2023-03-24 12:16:16
5	Mikael Häglund	66	Python 3	2023-03-24 12:48:23
6	Thomas Draper	68	Python 3	2023-03-25 20:50:34
7	Lee Isaac	69	Python 3	2023-03-15 00:38:10
8	Charles Ancheta	71	Python 3	2023-03-28 01:28:27
9	Rafael Kristoforus Yanto	71	Python 3	2025-02-24 09:17:16
10	Lasse Letager Hansen	72	Python 3	2023-03-14 18:23:47

#	User	Length	Language	Date
1	Thomas Feld	46	Ruby	2023-03-16 08:59:17
2	Chenzhang Hu	155	Ruby	2025-09-22 18:04:52

#	User	Length	Language	Date
1	Azeez Daoud	384	Rust	2025-01-01 11:38:59
2	David Rasch	405	Rust	2023-08-14 13:44:28
3	Adam Yaser Sweilem	431	Rust	2025-02-09 13:55:58
4	Artur Khuziakhmetov	457	Rust	2025-12-23 08:42:25
5	Bas Dirks	501	Rust	2023-12-25 15:56:46
6	Ryan Mueller	519	Rust	2023-12-15 14:45:07
7	Isak Jägberg	541	Rust	2023-03-31 15:10:00
8	Sanjay Yepuri	549	Rust	2023-05-31 03:20:52
9	Xiu-Heng Hua	574	Rust	2025-07-02 10:07:49
10	Hidden user	673	Rust	2023-04-29 20:19:21

Solution running time distribution