Problem A
Awkward Party — Problem Statistics

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Submissions	6780
Accepted submissions	2652
Submission ratio	39.12%
Authors	2402
Full solves [?]	2083
Full solve Ratio	86.72%

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	C	2018-12-19 15:18:36
2	Bergur Snorrason	0.01 s	C	2019-07-20 16:06:11
3	Ivan Petrov	0.01 s	C	2019-11-04 13:26:47
4	Ioannis Br	0.01 s	C	2022-04-15 14:18:22
5	Hidden user	0.01 s	C	2023-11-19 20:50:19
6	Ionuț Ștefan	0.01 s	C	2023-11-25 22:02:06
7	Ana-Maria Petre	0.01 s	C	2023-11-26 09:05:20
8	Naveen Kumar S	0.01 s	C	2025-04-21 15:29:40
9	Michael van der Kamp	0.02 s	C	2019-06-16 23:18:57
10	Sambit Palit	0.02 s	C	2020-11-08 23:42:28

#	User	Runtime	Language	Date
1	Nicholas Sippley	0.04 s	C#	2019-06-19 02:25:42
2	traxex	0.06 s	C#	2024-05-06 17:35:48
3	Liisi Kask	0.06 s	C#	2024-10-02 16:58:55
4	Amanda Christensen	0.07 s	C#	2021-07-12 15:24:53
5	Andreas B Andersen	0.07 s	C#	2021-07-12 15:27:07
6	Kolton Kovac	0.07 s	C#	2022-07-14 07:47:42
7	Nabeel Mirza	0.07 s	C#	2023-09-04 07:41:15
8	Nathan Andrews	0.07 s	C#	2024-09-06 23:30:12
9	Umar Rasyid	0.07 s	C#	2025-06-28 03:44:43
10	Evan Miller	0.07 s	C#	2025-09-03 02:14:29

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.00 s	C++	2024-12-25 17:30:29
2	Daniel Widjaja	0.01 s	C++	2019-01-11 18:49:03
3	Hidden user	0.01 s	C++	2019-02-04 08:28:39
4	Kenneth Langedal	0.01 s	C++	2019-02-22 17:17:58
5	Kuan Wei Heng	0.01 s	C++	2019-03-16 09:44:06
6	Chan Zhi Zheng Amos	0.01 s	C++	2019-03-17 09:08:00
7	Ian DeHaan	0.01 s	C++	2019-05-30 05:00:57
8	Michael Roberts	0.01 s	C++	2019-08-11 01:33:35
9	Yogindra Addanki	0.01 s	C++	2020-08-21 16:51:46
10	Sathyaram	0.01 s	C++	2020-08-30 23:06:04

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	Common Lisp	2019-06-14 06:02:10

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.10 s	F#	2023-03-18 08:13:31
2	Hjalte Sorgenfrei Mac Dalland	0.14 s	F#	2020-02-07 17:51:24

#	User	Runtime	Language	Date
1	Muhammad Fairuzi Teguh	0.10 s	Go	2021-04-05 17:08:49
2	Norbert Voelker	0.10 s	Go	2021-09-06 17:27:52
3	Andriy Zyevakov	0.24 s	Go	2019-06-16 16:17:56
4	Husain Satan	0.71 s	Go	2023-11-06 18:28:37

#	User	Runtime	Language	Date
1	Tim Put	0.05 s	Haskell	2019-09-17 19:36:47
2	Steinar Simonnes	0.05 s	Haskell	2024-05-01 18:05:44
3	Hidden user	0.06 s	Haskell	2022-03-08 23:12:10
4	Stian	0.07 s	Haskell	2021-10-08 13:16:50
5	Aurélien Pepin	0.25 s	Haskell	2019-09-21 17:50:52

#	User	Runtime	Language	Date
1	Clement Oh	0.06 s	Java	2022-08-05 21:50:08
2	Guangyi Zhou	0.08 s	Java	2024-12-17 13:48:30
3	Wallace Peck Teong Yee	0.10 s	Java	2024-10-23 10:38:09
4	Simon Kristiansen	0.13 s	Java	2020-11-01 20:54:01
5	Bjørn Dons	0.14 s	Java	2018-12-28 07:38:47
6	Anish Kambhampati	0.15 s	Java	2022-01-23 17:02:09
7	Hanh Phuc Huynh	0.17 s	Java	2019-10-16 09:37:04
8	Marcus Gulli Bergquist	0.18 s	Java	2018-11-10 14:21:43
9	Benjamin Reidys	0.18 s	Java	2018-11-18 05:14:50
10	Adrian Bay Dorph	0.18 s	Java	2020-10-10 21:51:52

#	User	Runtime	Language	Date
1	Leonid Demidov	0.08 s	JavaScript (Node.js)	2023-10-04 11:49:10
2	Sander Hellesø	0.11 s	JavaScript (Node.js)	2019-04-21 06:21:24

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-06-08 06:38:23
2	Zach Tschetter	0.05 s	JavaScript (SpiderMonkey)	2023-07-01 02:11:42
3	Bjørn Chr. Soltvedt	0.09 s	JavaScript (SpiderMonkey)	2019-01-10 18:24:27

#	User	Runtime	Language	Date
1	Timothy Gaede	0.54 s	Julia	2024-05-15 06:08:35

#	User	Runtime	Language	Date
1	Jacob Huebner	0.23 s	Kotlin	2022-02-06 02:46:10
2	Nicholas Johnson	0.26 s	Kotlin	2022-02-05 21:50:56
3	Johnny Baloney	0.33 s	Kotlin	2022-01-16 21:01:17
4	Adam Rankin	0.46 s	Kotlin	2023-09-23 22:27:34
5	Troy Warmboe	0.47 s	Kotlin	2020-02-05 22:54:43
6	Adam Koprowski	0.47 s	Kotlin	2020-08-30 11:09:01
7	Hidden user	0.56 s	Kotlin	2019-11-03 18:55:30
8	Phường Lên	0.56 s	Kotlin	2019-11-03 23:28:37

#	User	Runtime	Language	Date
1	Caleb Austin	0.02 s	Lua	2024-09-06 22:32:35

#	User	Runtime	Language	Date
1	Joseph Chau	0.03 s	Pascal	2024-02-02 22:35:04

#	User	Runtime	Language	Date
1	Jonas Lindenskov Nielsen	0.04 s	PHP	2020-02-07 17:00:42

#	User	Runtime	Language	Date
1	Lars Åström	0.05 s	Python 2	2018-11-10 11:55:50
2	Markus Fanebust Dregi	0.05 s	Python 2	2018-11-10 11:56:53
3	Hidden user	0.05 s	Python 2	2018-12-08 16:06:21
4	Andreas Björklund	0.05 s	Python 2	2018-12-23 15:28:08
5	Rafael Rivas	0.05 s	Python 2	2019-01-16 02:32:22
6	Jesper Öqvist	0.05 s	Python 2	2019-03-17 11:08:23
7	James Lawson	0.05 s	Python 2	2019-04-03 14:54:02
8	Michael van der Kamp	0.05 s	Python 2	2019-06-16 23:30:52
9	Oskar Haarklou Veileborg	0.05 s	Python 2	2019-11-22 11:38:45
10	Hermon Mulat	0.06 s	Python 2	2019-01-07 21:34:53

#	User	Runtime	Language	Date
1	Philip Andersson	0.05 s	Python 3	2019-02-22 22:16:15
2	Ethan Woodrum	0.05 s	Python 3	2019-08-06 23:36:57
3	Ellen Lloyd	0.05 s	Python 3	2019-09-30 00:13:52
4	Jonatan Nilsson	0.05 s	Python 3	2019-10-10 15:14:45
5	Carson Barnett	0.05 s	Python 3	2019-12-25 00:58:05
6	Joakim Sunde	0.06 s	Python 3	2018-11-10 12:16:24
7	Jakob Kallestad	0.06 s	Python 3	2018-11-10 17:56:08
8	Ryan Berthold	0.06 s	Python 3	2019-01-03 04:13:06
9	Andrew McGehee	0.06 s	Python 3	2019-01-18 16:17:18
10	Connor Johnston	0.06 s	Python 3	2019-01-28 20:29:33

#	User	Runtime	Language	Date
1	Thomas Feld	0.13 s	Ruby	2023-02-20 08:47:43

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-08-03 19:52:08
2	Arun Woosaree	0.01 s	Rust	2019-11-14 21:23:11
3	Morrow	0.01 s	Rust	2020-04-28 22:33:53
4	Albert Rise Nielsen	0.01 s	Rust	2020-11-15 13:22:09
5	Hidden user	0.01 s	Rust	2022-07-12 15:18:35
6	Trygve Eide Igesund	0.01 s	Rust	2023-04-04 21:34:12
7	Petr Sabel	0.01 s	Rust	2023-09-23 17:09:13
8	Connor Skees	0.02 s	Rust	2020-10-25 21:02:44
9	Bas Dirks	0.02 s	Rust	2022-05-03 17:08:01
10	Ishtiaq Hussain Naqi	0.02 s	Rust	2023-09-07 00:23:52

#	User	Length	Language	Date
1	Naveen Kumar S	654	C	2025-04-21 15:29:40
2	Ionuț Ștefan	721	C	2023-11-25 22:02:06
3	Hidden user	848	C	2023-11-19 20:50:19
4	Ioannis Br	878	C	2022-04-15 14:18:22
5	Ana-Maria Petre	1016	C	2023-11-26 09:05:20
6	Nick Hargrove	1103	C	2022-02-22 08:54:18
7	Hidden user	1547	C	2018-12-19 15:18:36
8	Anavi Vyawhare	1703	C	2025-04-24 23:07:26
9	Sambit Palit	1799	C	2020-11-08 23:42:28
10	Bergur Snorrason	2001	C	2019-07-20 16:06:11

#	User	Length	Language	Date
1	traxex	339	C#	2024-05-06 17:35:48
2	Evan Miller	609	C#	2025-09-03 02:14:29
3	Nathan Andrews	619	C#	2024-09-06 23:30:12
4	Amanda Christensen	896	C#	2021-07-12 15:24:53
5	Andreas B Andersen	922	C#	2021-07-12 15:27:07
6	Nicholas Sippley	977	C#	2019-06-19 02:25:42
7	Liisi Kask	981	C#	2024-10-02 16:58:55
8	Umar Rasyid	1062	C#	2025-06-28 03:44:43
9	Thomas Tyge Andersen	1078	C#	2025-08-30 12:26:18
10	Kolton Kovac	1203	C#	2022-07-14 07:47:42

#	User	Length	Language	Date
1	Daniel D'Agosta	175	C++	2024-02-15 01:20:04
2	Anna Roczek	227	C++	2023-07-29 18:55:45
3	Jesper Bech Christensen	232	C++	2022-09-08 12:01:04
4	Chase Hinesman	242	C++	2019-02-15 22:35:29
5	Thái Phúc Tiến	259	C++	2024-10-29 07:53:12
6	Markus Mathiasen	268	C++	2021-10-10 21:00:09
7	William Gan	270	C++	2018-12-04 15:55:55
8	Bay Wei Heng	270	C++	2019-08-20 03:26:14
9	Yongchen Zhou	270	C++	2022-02-05 22:02:35
10	Way Tan	283	C++	2019-04-04 11:15:48

#	User	Length	Language	Date
1	Hidden user	547	Common Lisp	2019-06-14 06:02:10

#	User	Length	Language	Date
1	Hjalte Sorgenfrei Mac Dalland	820	F#	2020-02-07 17:51:24
2	Jacob Harris Cryer Kragh	952	F#	2023-03-18 08:13:31

#	User	Length	Language	Date
1	Andriy Zyevakov	571	Go	2019-06-16 16:17:56
2	Husain Satan	591	Go	2023-11-06 18:28:37
3	Norbert Voelker	600	Go	2021-09-06 17:27:52
4	Muhammad Fairuzi Teguh	1417	Go	2021-04-05 17:08:49

#	User	Length	Language	Date
1	Stian	455	Haskell	2021-09-29 18:36:33
2	Steinar Simonnes	598	Haskell	2024-05-01 18:05:44
3	Tim Put	897	Haskell	2020-10-14 02:37:09
4	Aurélien Pepin	925	Haskell	2019-09-21 17:50:52
5	Hidden user	928	Haskell	2022-03-08 23:12:10

#	User	Length	Language	Date
1	Yeung Man Tsung	414	Java	2022-07-26 16:18:10
2	Hidden user	427	Java	2020-03-18 22:43:42
3	Frank Liu	450	Java	2022-11-11 23:36:49
4	Joey Chen	494	Java	2019-07-09 09:16:53
5	Yam Pariyar	498	Java	2022-11-08 01:37:26
6	Hidden user	499	Java	2019-03-17 10:26:38
7	Hidden user	499	Java	2019-12-07 22:46:10
8	Kayla Williams	499	Java	2022-10-26 04:26:41
9	Kayla Williams	499	Java	2022-10-26 05:35:33
10	Emilie Hyslop	513	Java	2020-12-29 22:51:15

#	User	Length	Language	Date
1	Leonid Demidov	888	JavaScript (Node.js)	2023-10-04 11:49:10
2	Sander Hellesø	1290	JavaScript (Node.js)	2019-04-21 06:21:24

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	251	JavaScript (SpiderMonkey)	2019-01-10 18:24:27
2	Christian Pilegaard Cederquist	279	JavaScript (SpiderMonkey)	2023-06-08 06:38:23
3	Zach Tschetter	364	JavaScript (SpiderMonkey)	2023-07-01 02:11:42

#	User	Length	Language	Date
1	Timothy Gaede	485	Julia	2024-05-15 06:08:35

#	User	Length	Language	Date
1	Adam Koprowski	436	Kotlin	2020-08-30 11:09:01
2	Phường Lên	463	Kotlin	2019-11-03 23:28:37
3	Hidden user	469	Kotlin	2019-11-03 18:55:30
4	Johnny Baloney	729	Kotlin	2022-01-16 21:01:17
5	Adam Rankin	742	Kotlin	2023-09-23 22:27:34
6	Troy Warmboe	813	Kotlin	2020-02-05 22:54:43
7	Jacob Huebner	1162	Kotlin	2022-02-06 02:46:10
8	Nicholas Johnson	2243	Kotlin	2022-02-05 21:50:56

#	User	Length	Language	Date
1	Caleb Austin	346	Lua	2024-09-06 22:32:35

#	User	Length	Language	Date
1	Joseph Chau	458	Pascal	2024-02-02 22:35:04

#	User	Length	Language	Date
1	Jonas Lindenskov Nielsen	675	PHP	2020-02-07 17:00:42

#	User	Length	Language	Date
1	Lars Åström	144	Python 2	2018-11-10 11:55:50
2	Jesper Öqvist	162	Python 2	2019-03-17 11:08:23
3	Andreas Björklund	178	Python 2	2018-12-23 15:28:08
4	Oskar Haarklou Veileborg	217	Python 2	2019-11-22 11:38:45
5	Markus Fanebust Dregi	269	Python 2	2018-11-10 11:56:53
6	Rafael Rivas	310	Python 2	2019-01-16 02:32:22
7	Johan Lyts	319	Python 2	2019-06-13 15:25:39
8	Hidden user	348	Python 2	2018-12-08 16:06:21
9	Yanmarshus Bachtiar	383	Python 2	2020-09-17 10:27:01
10	James Lawson	388	Python 2	2019-04-03 14:54:02

#	User	Length	Language	Date
1	Avery	96	Python 3	2025-08-05 03:57:14
2	Benjamin Z White	98	Python 3	2023-04-02 00:12:19
3	Peter Stauder	106	Python 3	2022-09-29 20:52:40
4	Ahmed Chamseddine	113	Python 3	2024-09-13 12:32:28
5	David Aldenbro	120	Python 3	2025-10-12 13:23:44
6	Farzam Abrishami	126	Python 3	2023-06-11 00:55:22
7	Eugin Pahk	132	Python 3	2023-10-27 23:47:11
8	Tam Keng Hong	134	Python 3	2024-04-17 19:51:29
9	Tai Tze Kin	138	Python 3	2024-05-04 21:25:59
10	Jonathan de Koning	141	Python 3	2024-02-02 23:52:51

#	User	Length	Language	Date
1	Thomas Feld	80	Ruby	2023-02-20 08:59:17

#	User	Length	Language	Date
1	David Rasch	669	Rust	2024-01-18 16:12:10
2	Bas Dirks	701	Rust	2022-05-03 17:08:01
3	Arun Woosaree	820	Rust	2019-11-14 21:23:11
4	Chris Seager	937	Rust	2025-02-06 00:50:10
5	Ishtiaq Hussain Naqi	941	Rust	2023-09-07 00:23:52
6	Petr Sabel	1000	Rust	2023-09-23 17:09:13
7	Albert Rise Nielsen	1008	Rust	2020-11-15 13:22:09
8	Hidden user	1056	Rust	2022-07-12 15:18:35
9	Connor Skees	1190	Rust	2020-10-25 21:02:44
10	Morrow	1297	Rust	2020-04-28 22:33:53

Solution running time distribution