Problem D
Flatter Land — Problem Statistics

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Submissions	1248
Accepted submissions	878
Submission ratio	70.35%
Authors	815
Full solves [?]	800
Full solve Ratio	98.16%

#	User	Runtime	Language	Date
1	Matzuka	0.01 s	APL	2025-09-01 10:35:19

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2025-09-07 22:26:56
2	Chenzhang Hu	0.01 s	Bash	2025-09-12 15:32:18

#	User	Runtime	Language	Date
1	Deci Bel	0.04 s	C#	2025-08-17 11:22:43
2	Jonas Bergling	0.04 s	C#	2025-08-22 10:56:53
3	Maureen De la fuente	0.04 s	C#	2025-08-24 20:38:22
4	Nicholas Hood	0.04 s	C#	2025-09-02 01:26:11
5	Freek van Keulen	0.04 s	C#	2025-09-03 15:52:39
6	Pokeheart (Pokeheart)	0.04 s	C#	2025-09-15 13:24:36
7	Cory Kalm	0.04 s	C#	2025-09-18 15:33:24
8	Hidden user	0.04 s	C#	2025-10-05 18:26:07
9	Aiden Roth	0.04 s	C#	2025-10-21 15:39:26
10	Just User	0.04 s	C#	2025-10-27 16:34:35

#	User	Runtime	Language	Date
1	Sebastian Banert	0.01 s	Common Lisp	2025-08-22 15:25:18
2	J Sotomayor	0.01 s	Common Lisp	2025-09-29 18:49:46

#	User	Runtime	Language	Date
1	dick move	0.00 s	Crystal	2025-10-13 16:48:45

#	User	Runtime	Language	Date
1	Niels Áki Mørk	0.08 s	F#	2025-09-13 14:55:54

#	User	Runtime	Language	Date
1	Jimmy Nejtron	0.00 s	Go	2025-08-14 16:36:02
2	Norbert Voelker	0.00 s	Go	2025-08-31 20:44:45
3	Dylan	0.00 s	Go	2025-09-09 22:33:50
4	Hidden user	0.00 s	Go	2025-10-09 19:10:09

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2025-08-18 11:55:20
2	Brent Yorgey	0.00 s	Haskell	2025-08-28 05:02:54
3	Juan Miguel Vilar	0.00 s	Haskell	2025-09-11 12:20:19
4	Brian Hwang	0.00 s	Haskell	2025-09-12 21:29:42
5	Pathompong Kwangtong	0.00 s	Haskell	2025-09-25 15:08:36
6	Fabian Mitterwallner	0.00 s	Haskell	2025-10-23 01:05:22
7	Herdi Saleh	0.00 s	Haskell	2025-10-27 16:12:05
8	Daniel Cabral	0.00 s	Haskell	2025-11-04 04:35:04

#	User	Runtime	Language	Date
1	Markus Bao	0.04 s	Java	2025-08-19 20:02:26
2	Sean Pettas	0.04 s	Java	2025-10-24 16:38:09
3	Rayhan Zirvi	0.06 s	Java	2021-02-12 20:08:25
4	Marit van Dijk	0.08 s	Java	2025-08-17 12:39:23
5	Luke Tan	0.08 s	Java	2025-08-18 12:52:37
6	Thomas Anung Basuki	0.08 s	Java	2025-08-19 02:30:40
7	Hunter Mullen	0.08 s	Java	2025-08-19 03:20:46
8	Adrian Hui	0.08 s	Java	2025-08-22 17:23:16
9	KEINER BALLESTEROS MARTINEZ	0.08 s	Java	2025-08-25 20:52:02
10	Joseph Lindsley	0.08 s	Java	2025-08-28 04:46:03

#	User	Runtime	Language	Date
1	Erlend Raa Vågset	0.04 s	JavaScript (Node.js)	2025-09-30 12:51:06
2	Carl Emil Zeidler	0.04 s	JavaScript (Node.js)	2025-10-24 17:36:49

#	User	Runtime	Language	Date
1	Tim McDonald	0.02 s	JavaScript (SpiderMonkey)	2020-04-25 20:02:59
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2025-08-14 07:07:01
3	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2025-08-14 11:45:31
4	Ben Armstrong	0.02 s	JavaScript (SpiderMonkey)	2025-08-14 18:45:55
5	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2025-09-03 09:50:26
6	Phuong Quang Nguyen	0.02 s	JavaScript (SpiderMonkey)	2025-09-12 10:54:33
7	Le Tri Dinh	0.02 s	JavaScript (SpiderMonkey)	2025-09-12 10:56:16

#	User	Runtime	Language	Date
1	Danny Robinson	0.36 s	Julia	2025-09-07 22:28:28
2	Timothy Gaede	0.42 s	Julia	2025-08-14 04:45:56

#	User	Runtime	Language	Date
1	Luka Chabot	0.20 s	Kotlin	2025-09-09 09:00:27
2	Younes Harichane Merrouche	0.20 s	Kotlin	2025-10-02 12:00:26
3	Sofie Meta Schroeder	0.23 s	Kotlin	2025-10-24 16:45:42

#	User	Runtime	Language	Date
1	Zeheng Li	0.00 s	Lua	2025-08-14 06:36:35
2	Trevor	0.00 s	Lua	2025-10-06 01:30:48
3	Kelium Jojoa	0.00 s	Lua	2025-11-04 03:28:20

#	User	Runtime	Language	Date
1	Nino Bašić	0.00 s	Nim	2025-09-17 14:43:57
2	Hidden user	0.00 s	Nim	2025-09-26 19:50:12
3	Alfred Morgan	0.00 s	Nim	2025-10-24 02:48:58

#	User	Runtime	Language	Date
1	Martha Kosa	0.00 s	OCaml	2025-10-30 03:34:37

#	User	Runtime	Language	Date
1	Cian Curtis	0.00 s	Pascal	2025-08-29 00:02:36
2	Ingemar Ragnemalm	0.00 s	Pascal	2025-09-06 15:25:42

#	User	Runtime	Language	Date
1	Thomas Feld	0.00 s	Perl	2025-09-17 15:52:54
2	Chenzhang Hu	0.00 s	Perl	2025-09-24 13:33:09
3	Jonas Ryssel	0.00 s	Perl	2025-10-24 17:24:15

#	User	Runtime	Language	Date
1	Sivasankaran D	0.07 s	Python 2	2025-08-17 14:29:03
2	KALAJAYANTHI M	0.07 s	Python 2	2025-09-21 07:39:05
3	DHARSHINI M	0.07 s	Python 2	2025-10-13 18:23:21

#	User	Runtime	Language	Date
1	Jey Veerasamy	0.04 s	Python 3	2025-08-14 06:08:32
2	Mack Wong Yoong Yee	0.04 s	Python 3	2025-08-14 06:35:25
3	Zeheng Li	0.04 s	Python 3	2025-08-14 06:36:06
4	Hrant Hovhannisyan	0.04 s	Python 3	2025-08-14 07:13:48
5	Ahmed Chamseddine	0.04 s	Python 3	2025-08-14 10:37:47
6	Simen Sørensen	0.04 s	Python 3	2025-08-14 13:32:45
7	Bjørn Dons	0.04 s	Python 3	2025-08-14 20:43:45
8	Yong Mao	0.04 s	Python 3	2025-08-14 23:27:45
9	Liam Keliher	0.04 s	Python 3	2025-08-15 00:35:37
10	Jason Clarke	0.04 s	Python 3	2025-08-15 13:19:08

#	User	Runtime	Language	Date
1	Ayush Biswas	0.38 s	Racket	2025-10-22 07:43:30

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2025-08-19 10:08:17
2	Þorsteinn Sævar Kristjánsson	0.06 s	Ruby	2025-10-01 11:52:10
3	Alexander Bilde Pedersen	0.06 s	Ruby	2025-10-24 16:17:41
4	Russell Ng	0.07 s	Ruby	2025-08-14 16:27:34
5	Liam Spillane	0.07 s	Ruby	2025-08-29 00:06:39
6	Frederik Petersen	0.07 s	Ruby	2025-09-18 08:40:29

#	User	Runtime	Language	Date
1	Ștefan-Iulian Alecu	0.04 s	Visual Basic	2025-11-02 04:28:43

#	User	Runtime	Language	Date
1	Grettir Heimisson	0.00 s	Zig	2025-10-20 21:53:48

#	User	Length	Language	Date
1	Matzuka	18	APL	2025-09-01 10:38:43

#	User	Length	Language	Date
1	Chenzhang Hu	19	Bash	2025-09-12 15:32:18
2	Danny Robinson	28	Bash	2025-09-07 22:26:56

#	User	Length	Language	Date
1	Martin Blom	78	C	2025-09-17 15:10:26
2	Jonatan Altebro	79	C	2025-08-22 17:34:24
3	Sven Rönnbäck	97	C	2025-08-16 11:19:17
4	Sebastian Banert	108	C	2025-08-22 15:09:03
5	Eyleifur Bjarkason	109	C	2025-09-24 17:11:32
6	Finn Uddling	109	C	2025-09-27 13:39:39
7	Ankam Vinuthna	112	C	2025-10-21 11:16:11
8	Simon Norrby	112	C	2025-11-01 20:30:24
9	MartÍn Tena Fernández	117	C	2025-09-21 15:46:04
10	Hidden user	118	C	2025-09-14 16:39:09

#	User	Length	Language	Date
1	Deci Bel	125	C#	2025-08-17 11:22:43
2	Freek van Keulen	126	C#	2025-09-03 15:52:39
3	Pokeheart (Pokeheart)	223	C#	2025-09-15 13:24:36
4	Just User	233	C#	2025-10-27 16:34:35
5	Գոռ Բաղդասարյան	251	C#	16:07:51
6	Maureen De la fuente	284	C#	2025-08-24 20:38:22
7	Hidden user	298	C#	2025-10-05 18:26:07
8	Jonas Bergling	312	C#	2025-08-22 10:56:53
9	Aiden Roth	326	C#	2025-10-21 15:39:26
10	Cory Kalm	336	C#	2025-09-18 15:33:24

#	User	Length	Language	Date
1	Hidden user	82	C++	2025-08-15 04:15:40
2	Le Hoang Vu	96	C++	2025-09-23 16:44:06
3	Hidden user	101	C++	2025-09-23 13:55:00
4	Bảo Đoan	102	C++	2025-09-01 12:26:56
5	Constantin Ungureanu	102	C++	2025-10-01 18:49:39
6	Mathias Gernez	102	C++	2025-10-09 17:18:35
7	Dac Tam	103	C++	2025-08-29 05:22:27
8	Thảo Dương Xuân	103	C++	2025-09-14 17:23:16
9	Dustin R	105	C++	2025-08-14 04:37:25
10	Đậu Huy Minh	105	C++	2025-09-16 04:34:24

#	User	Length	Language	Date
1	J Sotomayor	30	Common Lisp	2025-09-29 18:49:46
2	Sebastian Banert	70	Common Lisp	2025-08-22 15:25:18

#	User	Length	Language	Date
1	dick move	48	Crystal	2025-10-13 16:48:45

#	User	Length	Language	Date
1	Niels Áki Mørk	224	F#	2025-09-13 14:55:54

#	User	Length	Language	Date
1	Hidden user	109	Go	2025-10-09 19:10:09
2	Jimmy Nejtron	130	Go	2025-08-14 16:36:02
3	Norbert Voelker	139	Go	2025-08-31 20:44:45
4	Dylan	292	Go	2025-09-09 22:33:50

#	User	Length	Language	Date
1	Fabian Mitterwallner	39	Haskell	2025-10-23 01:06:19
2	Herdi Saleh	50	Haskell	2025-10-27 16:12:05
3	Juan Miguel Vilar	51	Haskell	2025-09-11 12:20:19
4	Steinar Simonnes	95	Haskell	2025-08-18 11:55:20
5	Daniel Cabral	121	Haskell	2025-11-04 04:35:04
6	Pathompong Kwangtong	167	Haskell	2025-09-25 15:08:36
7	Brent Yorgey	183	Haskell	2025-08-28 05:02:54
8	Brian Hwang	213	Haskell	2025-09-12 21:29:42

#	User	Length	Language	Date
1	Aarya Maskara	215	Java	2025-11-05 23:48:42
2	Carolyn Gao	219	Java	2025-11-05 23:34:19
3	Jason Chen	220	Java	2022-06-07 18:51:35
4	Luke Tan	224	Java	2025-08-18 12:52:37
5	Jason Evans	228	Java	2020-04-25 18:50:59
6	Thomas Anung Basuki	228	Java	2025-08-19 02:30:40
7	Isaac Pinder	228	Java	2025-11-06 20:46:00
8	Emil Tejn Rasmussen	229	Java	2025-09-07 18:04:17
9	Rushin Patel	229	Java	2025-11-06 04:27:31
10	Morgan Holien	233	Java	2020-04-25 18:24:54

#	User	Length	Language	Date
1	Erlend Raa Vågset	153	JavaScript (Node.js)	2025-09-30 12:51:06
2	Carl Emil Zeidler	431	JavaScript (Node.js)	2025-10-24 17:36:49

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	29	JavaScript (SpiderMonkey)	2025-08-14 07:07:01
2	Jimmy Gustafsson	29	JavaScript (SpiderMonkey)	2025-09-03 09:50:26
3	Bjørn Chr. Soltvedt	32	JavaScript (SpiderMonkey)	2025-08-14 11:45:57
4	Ben Armstrong	44	JavaScript (SpiderMonkey)	2025-08-14 18:45:55
5	Phuong Quang Nguyen	55	JavaScript (SpiderMonkey)	2025-09-12 10:54:33
6	Le Tri Dinh	56	JavaScript (SpiderMonkey)	2025-09-12 10:56:16
7	Tim McDonald	92	JavaScript (SpiderMonkey)	2020-04-25 20:02:59

#	User	Length	Language	Date
1	Danny Robinson	41	Julia	2025-09-07 22:28:28
2	Timothy Gaede	100	Julia	2025-08-14 04:45:56

#	User	Length	Language	Date
1	Younes Harichane Merrouche	101	Kotlin	2025-10-02 12:00:26
2	Sofie Meta Schroeder	149	Kotlin	2025-10-24 16:45:42
3	Luka Chabot	353	Kotlin	2025-09-09 09:00:27

#	User	Length	Language	Date
1	Zeheng Li	37	Lua	2025-08-14 06:36:35
2	Trevor	68	Lua	2025-10-06 01:30:48
3	Kelium Jojoa	75	Lua	2025-11-04 03:28:20

#	User	Length	Language	Date
1	Alfred Morgan	58	Nim	2025-10-24 02:48:58
2	Hidden user	106	Nim	2025-09-26 19:50:12
3	Nino Bašić	120	Nim	2025-09-17 14:43:57

#	User	Length	Language	Date
1	Martha Kosa	71	OCaml	2025-10-30 03:34:37

#	User	Length	Language	Date
1	Cian Curtis	51	Pascal	2025-10-22 15:48:07
2	Ingemar Ragnemalm	105	Pascal	2025-09-06 15:25:42

#	User	Length	Language	Date
1	Thomas Feld	6	Perl	2025-09-17 15:53:08
2	Chenzhang Hu	6	Perl	2025-09-24 13:33:09
3	Jonas Ryssel	75	Perl	2025-10-24 17:24:15

#	User	Length	Language	Date
1	Sivasankaran D	41	Python 2	2025-08-17 14:29:03
2	DHARSHINI M	52	Python 2	2025-10-13 18:23:21
3	KALAJAYANTHI M	58	Python 2	2025-09-21 07:39:05

#	User	Length	Language	Date
1	Guk Yi Siong	33	Python 3	2025-08-16 08:41:00
2	Nicholas Russell Saerang	33	Python 3	2025-08-21 17:28:05
3	Shashank Bhatt	34	Python 3	2025-08-18 20:30:43
4	Noah Hessen Bjerke	34	Python 3	2025-08-23 22:43:28
5	Alexandre Douard	35	Python 3	2025-09-18 20:24:38
6	Brady Bhalla	36	Python 3	2021-02-10 00:05:33
7	Reed Elliott	36	Python 3	2021-02-11 23:35:06
8	Mack Wong Yoong Yee	36	Python 3	2025-08-14 06:35:25
9	Ahmed Chamseddine	36	Python 3	2025-08-14 10:37:47
10	Simen Sørensen	36	Python 3	2025-08-14 13:32:45

#	User	Length	Language	Date
1	Ayush Biswas	48	Racket	2025-10-22 07:43:30

#	User	Length	Language	Date
1	Thomas Feld	22	Ruby	2025-08-19 10:09:18
2	Russell Ng	25	Ruby	2025-08-14 16:27:34
3	Liam Spillane	25	Ruby	2025-08-29 00:07:08
4	Frederik Petersen	25	Ruby	2025-09-18 08:40:29
5	Alexander Bilde Pedersen	25	Ruby	2025-10-24 16:17:41
6	Þorsteinn Sævar Kristjánsson	33	Ruby	2025-10-01 11:52:10

#	User	Length	Language	Date
1	Vincent Lagerros	222	Rust	2025-08-14 14:48:59
2	Pankajkumar Patro	232	Rust	2025-08-23 14:26:03
3	David Rasch	258	Rust	2025-08-25 16:28:13
4	Rasmus Melin	300	Rust	2025-09-05 16:39:48
5	Emil Dichmann	308	Rust	2025-08-17 22:24:43
6	Henrik Josefsson	311	Rust	2025-08-17 18:31:39
7	Joshua Freudenhammer	389	Rust	2025-08-28 00:02:16
8	Hans Zhao Torkelsson	399	Rust	2025-11-05 19:59:36
9	Nathaniel Risum	400	Rust	2025-08-21 12:47:01
10	Zenon	483	Rust	2025-10-15 15:58:13

#	User	Length	Language	Date
1	Ștefan-Iulian Alecu	98	Visual Basic	2025-11-02 04:28:43

#	User	Length	Language	Date
1	Grettir Heimisson	921	Zig	2025-10-20 21:53:48

Solution running time distribution