Problem A
Image Decoding — Problem Statistics

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Submissions	3303
Accepted submissions	469
Submission ratio	14.20%
Authors	407
Full solves [?]	375
Full solve Ratio	92.14%

#	User	Runtime	Language	Date
1	Nicolas Tabet	0.01 s	C	2025-09-04 22:39:54
2	Avanish Mallya	0.01 s	C	2026-01-21 00:02:17

#	User	Runtime	Language	Date
1	Sai Mihir Kovour	0.00 s	C++	2026-01-22 08:50:20
2	Zihan Xu	0.00 s	C++	2026-01-23 03:56:16
3	Arnav	0.01 s	C++	2022-01-16 19:54:44
4	Otavio Sartorelli de Toledo Piza	0.01 s	C++	2022-01-17 01:48:43
5	Lucy Cheng	0.01 s	C++	2022-01-20 20:12:27
6	Ethan Dickey	0.01 s	C++	2022-02-01 02:49:46
7	Richard Feng	0.01 s	C++	2024-08-22 04:03:05
8	Jiaming Situ	0.01 s	C++	2024-08-22 04:07:16
9	Eric Zhang	0.01 s	C++	2024-08-23 02:04:49
10	Alex Park	0.01 s	C++	2024-08-23 02:13:16

#	User	Runtime	Language	Date
1	Thomas Ashcraft	0.02 s	C++ with Memory Check	2025-08-30 19:42:44

#	User	Runtime	Language	Date
1	Mikail Khan	0.09 s	Haskell	2022-01-14 19:48:38

#	User	Runtime	Language	Date
1	Leon Wang	0.11 s	Java	2024-09-01 01:53:49
2	Pranay Nandkeolyar	0.14 s	Java	2025-01-18 00:17:26
3	Kabir Batra	0.15 s	Java	2022-01-18 07:21:16
4	Elaine Huang	0.15 s	Java	2024-08-27 17:22:02
5	Benjamin Meshanko	0.16 s	Java	2022-01-14 04:57:39
6	Brian Sun	0.16 s	Java	2022-01-15 18:43:09
7	Daniel Kun Zhang	0.16 s	Java	2025-01-21 21:38:54
8	Selina Lin	0.16 s	Java	2025-09-01 02:24:17
9	Vishal Bhat	0.16 s	Java	2026-01-15 20:22:10
10	Aarav Patel	0.16 s	Java	2026-01-16 18:33:58

#	User	Runtime	Language	Date
1	John Yuan	0.20 s	JavaScript (Node.js)	2025-08-28 04:51:58

#	User	Runtime	Language	Date
1	Jacob Selbo	0.79 s	Kotlin	2026-01-15 03:14:42

#	User	Runtime	Language	Date
1	Anisha Chawla	0.09 s	Python 2	2025-09-05 03:52:25

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Python 3	2024-08-27 21:10:21
2	Lavangi Yadava	0.05 s	Python 3	2025-09-03 23:57:40
3	Madhavan Prasanna	0.05 s	Python 3	2025-09-05 02:34:12
4	Steven Widjaja	0.06 s	Python 3	2025-01-15 23:29:55
5	Nicholas Kann	0.06 s	Python 3	2025-01-16 22:27:48
6	Kushagr Khanna	0.06 s	Python 3	2025-01-16 22:33:49
7	Eli Farnesi-Dubizh	0.06 s	Python 3	2025-01-22 03:45:48
8	bhavin	0.06 s	Python 3	2025-01-22 22:55:22
9	Kestan Kamei	0.06 s	Python 3	2025-01-22 22:58:21
10	Hidden user	0.06 s	Python 3	2025-08-28 23:00:26

#	User	Runtime	Language	Date
1	Ryan Tanaka	0.06 s	Python 3 with NumPy	2024-09-18 19:58:46
2	Hidden user	0.06 s	Python 3 with NumPy	2025-09-01 04:06:01
3	Caleb	0.06 s	Python 3 with NumPy	2025-09-01 20:27:32
4	Aadi Biyani	0.06 s	Python 3 with NumPy	2025-09-04 21:02:04
5	Abhiram Dasari	0.57 s	Python 3 with NumPy	2025-08-30 20:57:42

#	User	Runtime	Language	Date
1	Caleb Smith	0.08 s	Ruby	2022-01-18 02:10:41

#	User	Runtime	Language	Date
1	Lukas Dutrieux	0.00 s	Rust	2025-08-28 03:24:03
2	Eric Park	0.02 s	Rust	2025-01-15 18:40:21
3	Anirudh Rao	0.06 s	Rust	2022-01-16 06:23:01

#	User	Length	Language	Date
1	Nicolas Tabet	1122	C	2025-09-04 22:39:54
2	Avanish Mallya	1478	C	2026-01-21 00:02:17

#	User	Length	Language	Date
1	Leo Lee	1043	C++	2025-01-19 16:55:01
2	Jayden Lee	1078	C++	2025-01-19 23:03:26
3	Kaan Savasoglu	1078	C++	2025-01-21 16:44:40
4	Noah Trupin	1100	C++	2024-08-23 20:02:15
5	Kabir Jain	1106	C++	2025-09-05 05:25:57
6	Arnav	1113	C++	2022-01-16 19:54:44
7	Otavio Sartorelli de Toledo Piza	1126	C++	2022-01-17 01:48:43
8	Segyul Park	1141	C++	2024-08-29 19:21:10
9	Nathan Nguyen	1183	C++	2025-01-19 23:40:26
10	Matthew Lee	1191	C++	2025-08-28 21:26:58

#	User	Length	Language	Date
1	Thomas Ashcraft	1888	C++ with Memory Check	2025-08-30 19:42:44

#	User	Length	Language	Date
1	Mikail Khan	1399	Haskell	2022-01-14 19:48:38

#	User	Length	Language	Date
1	Hidden user	1258	Java	2025-08-29 18:33:12
2	Charles Chen	1308	Java	2024-08-23 07:25:05
3	Charlie Heger	1464	Java	2026-01-16 07:08:46
4	Aryan	1514	Java	2025-09-05 02:05:42
5	Jeffrey Wu	1571	Java	2024-08-23 15:08:40
6	Siddh Saxena	1582	Java	2025-01-23 00:30:20
7	Emily Li	1594	Java	2025-09-03 05:09:31
8	Selina Lin	1619	Java	2025-09-01 02:24:17
9	Hidden user	1675	Java	2025-01-18 23:04:31
10	Arnav Daryani	1705	Java	2024-08-28 16:14:22

#	User	Length	Language	Date
1	John Yuan	1877	JavaScript (Node.js)	2025-08-28 04:51:58

#	User	Length	Language	Date
1	Jacob Selbo	1010	Kotlin	2026-01-15 03:14:42

#	User	Length	Language	Date
1	Anisha Chawla	908	Python 2	2025-09-05 03:52:25

#	User	Length	Language	Date
1	Munir Kudrati-Plummer	391	Python 3	2026-01-14 18:11:45
2	Ethan Chen	533	Python 3	2026-01-18 18:22:39
3	Wilbert	557	Python 3	2026-01-15 23:46:49
4	Jayden Lee	581	Python 3	2025-09-04 21:26:20
5	Ethan Dawes	645	Python 3	2025-08-29 05:21:59
6	Jack Augenstine	658	Python 3	2025-01-18 22:44:36
7	Ethan L	660	Python 3	2025-08-29 02:13:30
8	Parthav Garg	661	Python 3	2026-01-15 20:43:32
9	Alex Zhang	662	Python 3	2026-01-19 20:11:37
10	Ishan Goel	664	Python 3	2024-08-23 01:09:15

#	User	Length	Language	Date
1	Abhiram Dasari	1156	Python 3 with NumPy	2025-08-30 20:57:42
2	Caleb	1182	Python 3 with NumPy	2025-09-01 20:27:32
3	Aadi Biyani	1227	Python 3 with NumPy	2025-09-04 21:02:04
4	Hidden user	1527	Python 3 with NumPy	2025-09-01 04:06:01
5	Ryan Tanaka	1773	Python 3 with NumPy	2024-09-18 19:58:46

#	User	Length	Language	Date
1	Caleb Smith	676	Ruby	2022-01-18 02:10:41

#	User	Length	Language	Date
1	Anirudh Rao	1175	Rust	2022-01-16 06:23:01
2	Lukas Dutrieux	1974	Rust	2025-08-28 03:24:03
3	Eric Park	2542	Rust	2025-01-15 18:40:21

Solution running time distribution