Problem A
Birthday Boy — Problem Statistics

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Submissions	1911
Accepted submissions	530
Submission ratio	27.73%
Authors	552
Full solves [?]	461
Full solve Ratio	83.51%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2018-12-23 02:01:16
2	Ivan Petrov	0.00 s	C	2019-02-12 08:04:47
3	Hidden user	0.00 s	C	2024-02-24 04:28:57

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.05 s	C#	2024-03-25 09:27:25
2	Lukas P.	0.05 s	C#	2026-02-28 01:58:11

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.09 s	F#	2023-10-22 10:20:57

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2023-04-28 14:07:12
2	Li Jun	0.00 s	Haskell	2023-06-30 23:19:23
3	Matthew Gvasalia	0.00 s	Haskell	2023-08-18 16:32:25
4	Brent Yorgey	0.01 s	Haskell	2018-12-22 21:27:55

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.06 s	Java	2023-04-29 15:39:30
2	Andrew Polizzotto	0.07 s	Java	2020-10-21 13:39:31
3	Ho Lyun Jeong	0.08 s	Java	2021-01-29 04:25:52
4	Taras Romanyuk	0.08 s	Java	2023-12-17 20:39:07
5	Ivan Kosov	0.08 s	Java	2024-07-17 04:16:23
6	Tjibbe van der Veen	0.11 s	Java	2019-09-04 16:14:35
7	Hidden user	0.12 s	Java	2018-12-21 23:38:01
8	Mike Nguyen	0.12 s	Java	2022-04-23 21:21:03
9	Taylor Wong	0.12 s	Java	2025-01-26 03:56:19
10	Andy Tang	0.12 s	Java	2025-01-26 07:38:58

#	User	Runtime	Language	Date
1	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-12-27 18:19:30

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-06-14 18:58:26

#	User	Runtime	Language	Date
1	Johnny Baloney	0.15 s	Kotlin	2021-12-06 21:31:01
2	Phường Lên	0.16 s	Kotlin	2019-12-22 06:20:07
3	Adam Rankin	0.21 s	Kotlin	2023-09-23 18:03:24
4	Ravisai Tiruvuri	0.23 s	Kotlin	2024-03-27 17:19:17
5	Hidden user	0.24 s	Kotlin	2019-12-22 05:54:27

#	User	Runtime	Language	Date
1	Eoin Davey	0.03 s	Python 2	2019-03-06 11:41:11
2	Lars Åström	0.03 s	Python 2	2019-05-07 23:21:18
3	Oskar Haarklou Veileborg	0.03 s	Python 2	2019-06-18 17:34:08
4	Hidden user	0.03 s	Python 2	2019-07-22 17:56:43
5	Jonatan Nilsson	0.03 s	Python 2	2019-09-01 13:44:07
6	Björn Magnusson	0.03 s	Python 2	2019-09-02 10:14:19
7	Andreas Björklund	0.03 s	Python 2	2019-09-04 08:21:02
8	Mukerem Ali Nur	0.03 s	Python 2	2019-10-02 18:55:17
9	Yanmarshus Bachtiar	0.03 s	Python 2	2020-10-05 09:47:47
10	David Nilsson	0.04 s	Python 2	2019-07-16 17:28:41

#	User	Runtime	Language	Date
1	Bernhard Kartefla	0.02 s	Python 3	2018-12-23 16:51:11
2	Wang Zhi Jian	0.02 s	Python 3	2019-01-06 16:51:20
3	Vincent Tandya	0.02 s	Python 3	2019-02-24 23:18:36
4	Isaac Lee	0.02 s	Python 3	2019-03-08 03:34:06
5	Hans Tananda	0.02 s	Python 3	2019-09-14 09:37:49
6	Hidden user	0.02 s	Python 3	2019-09-17 02:20:10
7	Maarten Sebregts	0.02 s	Python 3	2019-09-22 10:58:50
8	Crystal Math	0.02 s	Python 3	2019-10-06 17:28:47
9	Jarik Karsten	0.02 s	Python 3	2019-10-07 13:07:11
10	Connor Johnston	0.02 s	Python 3	2019-10-15 20:54:47

#	User	Runtime	Language	Date
1	Alexander Bilde Pedersen	0.07 s	Ruby	2025-03-19 11:32:01

#	User	Runtime	Language	Date
1	Pahlevi Fikri Auliya	0.00 s	Rust	2020-10-18 10:33:10

#	User	Length	Language	Date
1	Ivan Petrov	1317	C	2019-02-12 08:04:47
2	Hidden user	2942	C	2024-02-24 04:28:57
3	Bergur Snorrason	5439	C	2018-12-23 02:01:16

#	User	Length	Language	Date
1	Lukas P.	3045	C#	2026-02-28 01:58:11
2	Andriy Zyevakov	12795	C#	2024-03-25 09:27:25

#	User	Length	Language	Date
1	Jalvin Chan Jia Xiang	783	C++	2020-01-18 11:17:20
2	Johan Wind	810	C++	2018-12-26 17:13:44
3	Dmitry Lyubshin	900	C++	2023-04-05 08:21:49
4	Tuukka Korhonen	964	C++	2022-03-11 08:31:33
5	Mugeon Kim	967	C++	2024-02-06 13:26:05
6	Haobin Ni	984	C++	2022-04-23 20:35:48
7	Nguyen Xuan Tung	985	C++	2021-02-26 12:45:16
8	Sander Oppen	994	C++	2024-04-30 15:35:48
9	Hidden user	1005	C++	2025-10-01 13:50:31
10	Andreas Alberg	1041	C++	2024-04-30 15:53:20

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1930	F#	2023-10-22 10:20:57

#	User	Length	Language	Date
1	Li Jun	1025	Haskell	2023-06-30 23:19:23
2	Brent Yorgey	1892	Haskell	2018-12-22 21:27:55
3	Hidden user	2026	Haskell	2023-04-28 14:07:12
4	Matthew Gvasalia	2900	Haskell	2023-08-18 16:32:25

#	User	Length	Language	Date
1	Hidden user	1661	Java	2018-12-21 23:38:01
2	Crystal Sharpe	1665	Java	2020-10-03 22:14:51
3	Ivan Dario	1697	Java	2019-05-10 17:36:07
4	Martijn Muijsers	1887	Java	2020-08-28 20:13:50
5	Brandon Zhang	2088	Java	2019-06-30 20:56:54
6	Addison Schmidt	2148	Java	2022-04-23 21:02:05
7	Bas te Kolste	2169	Java	2019-08-07 13:49:03
8	Doug Goodman	2313	Java	2020-03-16 20:01:52
9	Andrew Polizzotto	2454	Java	2020-10-21 13:39:31
10	Hidden user	2504	Java	2022-04-23 20:26:00

#	User	Length	Language	Date
1	Peter Kedemo	1564	JavaScript (Node.js)	2020-12-27 18:19:30

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1299	JavaScript (SpiderMonkey)	2019-06-14 18:58:26

#	User	Length	Language	Date
1	Johnny Baloney	1816	Kotlin	2021-12-06 21:31:01
2	Hidden user	1975	Kotlin	2019-12-22 05:54:27
3	Adam Rankin	2077	Kotlin	2023-09-23 18:03:24
4	Phường Lên	3072	Kotlin	2019-12-22 06:20:07
5	Ravisai Tiruvuri	6302	Kotlin	2024-03-27 17:19:17

#	User	Length	Language	Date
1	Andreas Björklund	644	Python 2	2019-09-04 08:21:02
2	Oskar Haarklou Veileborg	759	Python 2	2019-06-18 17:34:08
3	Jonatan Nilsson	828	Python 2	2019-09-01 13:44:07
4	Björn Magnusson	828	Python 2	2019-09-02 10:14:19
5	Eoin Davey	895	Python 2	2019-03-06 11:41:11
6	Hidden user	1007	Python 2	2019-07-22 17:57:06
7	Lars Åström	1043	Python 2	2019-05-07 23:21:18
8	Mukerem Ali Nur	1074	Python 2	2019-10-02 18:55:17
9	Måns Magnusson	1122	Python 2	2019-09-01 14:51:14
10	Maj Stenmark	1122	Python 2	2019-09-01 19:26:42

#	User	Length	Language	Date
1	Daniel Bogorad	365	Python 3	2026-01-19 15:40:56
2	Ahmed Chamseddine	372	Python 3	2023-10-23 15:44:09
3	Nicholas Russell Saerang	387	Python 3	2023-08-20 05:07:26
4	Yong Mao	396	Python 3	2023-10-26 02:43:25
5	Jason Clarke	434	Python 3	2024-06-14 11:48:49
6	Troels Bjerre Lund	522	Python 3	2021-02-17 22:34:37
7	Thibault Raffaillac	612	Python 3	2020-02-02 18:32:15
8	Artur Khuziakhmetov	615	Python 3	2022-07-11 21:01:04
9	Joneil Negrite	650	Python 3	2024-01-05 09:04:10
10	Bryan Wong Wei Heng	662	Python 3	2020-01-15 16:17:30

#	User	Length	Language	Date
1	Alexander Bilde Pedersen	366	Ruby	2025-03-19 12:38:30

#	User	Length	Language	Date
1	Pahlevi Fikri Auliya	3326	Rust	2020-10-18 10:44:51

Solution running time distribution