Problem A
Birthday Cake — Problem Statistics

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Submissions	2026
Accepted submissions	529
Submission ratio	26.11%
Authors	531
Full solves [?]	414
Full solve Ratio	77.97%

#	User	Runtime	Language	Date
1	Travis Meade	0.00 s	C	2019-03-25 20:38:28
2	Hidden user	0.00 s	C	2019-05-16 11:15:04
3	Ivan Petrov	0.00 s	C	2019-07-24 09:48:07
4	Ryan Maschino	0.00 s	C	2023-09-29 03:53:33

#	User	Runtime	Language	Date
1	Hidden user	0.07 s	F#	2025-03-25 10:09:46

#	User	Runtime	Language	Date
1	Nick Wu	0.05 s	Java	2017-10-07 19:25:54
2	Liam Keliher	0.05 s	Java	2017-10-26 22:12:54
3	Finn Lidbetter	0.06 s	Java	2017-10-08 18:08:56
4	Daniel Moyer	0.06 s	Java	2017-10-10 03:39:08
5	Anh Mai Le Xuan	0.06 s	Java	2018-10-06 00:20:58
6	Bjørn Dons	0.06 s	Java	2020-05-11 21:40:22
7	Andrew Polizzotto	0.06 s	Java	2020-08-02 01:54:11
8	Ricardo Ruiz	0.06 s	Java	2022-10-25 05:53:37
9	Joseph Li	0.06 s	Java	2024-02-24 00:37:47
10	Ngang Bah	0.07 s	Java	2022-11-01 04:56:19

#	User	Runtime	Language	Date
1	Jacob Huebner	0.12 s	Kotlin	2022-01-28 23:22:57

#	User	Runtime	Language	Date
1	Anna Nguyen	0.03 s	Python 2	2017-10-07 19:59:40
2	Michael Goldwasser	0.03 s	Python 2	2017-10-07 20:03:26
3	Haggai Liu	0.03 s	Python 2	2017-10-07 20:12:59
4	Jingqing Yang	0.03 s	Python 2	2017-10-07 22:57:57
5	Haggai Liu	0.03 s	Python 2	2017-10-08 07:00:20
6	Jason Shi	0.03 s	Python 2	2017-10-09 00:35:42
7	Hidden user	0.03 s	Python 2	2018-05-20 17:24:02
8	Maj Stenmark	0.03 s	Python 2	2018-05-20 17:24:48
9	Seyoon Ragavan	0.03 s	Python 2	2018-11-12 02:34:15
10	Arthur Lane	0.03 s	Python 2	2023-04-05 07:16:47

#	User	Runtime	Language	Date
1	Jason Yuen	0.02 s	Python 3	2017-10-07 20:11:26
2	Derick Anderson	0.02 s	Python 3	2017-10-07 21:53:55
3	Wanqi Zhu	0.02 s	Python 3	2017-10-07 22:41:58
4	Logan Su	0.02 s	Python 3	2017-10-07 22:47:45
5	Joey Bloom	0.02 s	Python 3	2017-10-09 03:06:43
6	Jon Bolin	0.02 s	Python 3	2017-10-10 22:39:20
7	Måns Magnusson	0.02 s	Python 3	2017-10-29 12:23:37
8	Yang Li	0.02 s	Python 3	2018-09-19 00:30:25
9	Nathan Collins	0.03 s	Python 3	2017-10-10 16:04:53
10	Dilhan Salgado	0.04 s	Python 3	2024-09-21 22:32:26

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Swift	2024-06-20 20:10:20

#	User	Length	Language	Date
1	Travis Meade	1395	C	2019-03-26 18:00:30
2	Ivan Petrov	1818	C	2019-07-24 09:48:07
3	Hidden user	3074	C	2019-05-16 11:15:04
4	Ryan Maschino	8658	C	2023-09-29 03:53:33

#	User	Length	Language	Date
1	Johan Wind	920	C++	2018-12-25 00:57:09
2	Yen-Hsiang Chang	960	C++	2022-03-30 05:27:52
3	Haomin Long	998	C++	2017-10-07 19:26:07
4	Ragur Krishnan	1024	C++	2018-10-01 03:39:01
5	Evan Michael Bailey	1035	C++	2024-05-02 19:11:02
6	Rohil Shah	1049	C++	2024-02-21 21:23:38
7	Shang-En Huang	1059	C++	2017-10-07 20:43:36
8	Hidden user	1060	C++	2017-11-04 14:12:18
9	yunjie xiao	1060	C++	2024-10-23 16:52:48
10	Howard Cheng	1109	C++	2017-10-07 19:11:23

#	User	Length	Language	Date
1	Hidden user	2667	F#	2025-03-23 16:44:30

#	User	Length	Language	Date
1	Shawn Zhong	1531	Java	2017-10-16 07:36:41
2	Shawn Zhong	1541	Java	2017-10-16 07:29:54
3	Sam Reinehr	1818	Java	2019-10-12 20:04:36
4	Hidden user	1819	Java	2020-06-11 16:01:00
5	Mitch Price	1915	Java	2017-10-09 09:02:00
6	Doug Goodman	2119	Java	2017-10-09 15:35:45
7	Sam Heil	2237	Java	2017-10-07 22:19:51
8	Sohom Dutta	2338	Java	2024-02-15 10:19:19
9	Hidden user	2397	Java	2022-04-05 09:42:09
10	HyperPsych	2424	Java	2025-10-27 02:14:23

#	User	Length	Language	Date
1	Jacob Huebner	2418	Kotlin	2022-01-28 23:22:57

#	User	Length	Language	Date
1	Jingqing Yang	902	Python 2	2017-10-07 22:57:57
2	Michael Goldwasser	1730	Python 2	2017-10-07 20:03:26
3	Haggai Liu	1841	Python 2	2017-10-07 20:12:59
4	Ziyuan Zhang	1928	Python 2	2020-11-01 08:41:00
5	Arthur Lane	1928	Python 2	2023-04-05 07:17:21
6	Haggai Liu	1938	Python 2	2017-10-08 07:00:20
7	Anna Nguyen	2008	Python 2	2017-10-07 19:59:40
8	Hidden user	2477	Python 2	2018-05-20 17:24:02
9	Maj Stenmark	2477	Python 2	2018-05-20 17:24:48
10	Seyoon Ragavan	2922	Python 2	2018-11-12 02:34:15

#	User	Length	Language	Date
1	Benjamin Ye	230	Python 3	2024-02-15 06:07:31
2	Caleb Dastrup	708	Python 3	2025-02-20 01:52:17
3	Nicholas Russell Saerang	719	Python 3	2025-06-12 23:25:06
4	Russell	719	Python 3	2025-09-22 00:37:30
5	Chris Kopp	764	Python 3	2024-04-25 06:43:18
6	Wilbert Chu	830	Python 3	2024-09-22 04:54:53
7	Xiaoyang Xu	945	Python 3	2025-10-31 03:29:50
8	David Bazan	962	Python 3	2025-11-07 01:01:39
9	Ruizhe Jiang	985	Python 3	2025-11-08 07:00:25
10	Niels Christian Skov Faber	991	Python 3	2024-05-07 19:22:37

#	User	Length	Language	Date
1	Hidden user	2900	Swift	2024-06-20 20:10:20

Solution running time distribution