Problem F
Some Sum — Problem Statistics

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Submissions	6266
Accepted submissions	2518
Submission ratio	40.19%
Authors	2484
Full solves [?]	2207
Full solve Ratio	88.85%

#	User	Runtime	Language	Date
1	Michael Wichlinski	0.00 s	Ada	2025-02-19 06:38:42

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.01 s	Bash	2023-11-05 12:42:00

#	User	Runtime	Language	Date
1	Gurpartap Singh Bhatti	0.02 s	C#	2019-11-17 04:31:53
2	Michael Palkovics	0.02 s	C#	2019-11-18 15:42:09
3	Johan Pettersson	0.02 s	C#	2019-11-19 18:47:53
4	Rasmus Leyes	0.02 s	C#	2019-11-23 18:51:30
5	Thomas Norris	0.02 s	C#	2019-11-26 20:05:13
6	Sebastian Gielinger	0.02 s	C#	2019-11-28 08:24:02
7	Linus Ekblom	0.02 s	C#	2019-12-27 11:43:02
8	Clarissa Limoa	0.02 s	C#	2020-01-09 11:22:57
9	Maximilian Richter	0.02 s	C#	2020-01-17 14:13:05
10	Alex Darley	0.02 s	C#	2020-02-04 11:09:57

#	User	Runtime	Language	Date
1	Joe Walbran	0.00 s	COBOL	2019-11-17 19:53:46

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Common Lisp	2020-01-19 06:11:10
2	David Cawthon	0.01 s	Common Lisp	2020-06-22 04:25:01

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-09-19 20:46:08

#	User	Runtime	Language	Date
1	Krzysztof Gibuła	0.08 s	Go	2021-04-20 18:21:30
2	Norbert Voelker	0.08 s	Go	2021-04-26 12:11:08
3	David Zacek	0.08 s	Go	2021-06-02 00:04:52
4	Resa Renaldy	0.08 s	Go	2021-07-16 05:41:49
5	James Leopold	0.08 s	Go	2021-11-25 11:10:38
6	Jahid Hasan Imon	0.08 s	Go	2022-02-26 10:02:03
7	Nyamdavaa Amar	0.08 s	Go	2022-04-19 20:44:26

#	User	Runtime	Language	Date
1	Leslie Yip	0.00 s	Haskell	2022-08-29 01:17:04
2	Steinar Simonnes	0.00 s	Haskell	2024-02-25 12:28:43
3	Sebastian Banert	0.00 s	Haskell	2025-01-23 19:35:51
4	Brent Yorgey	0.01 s	Haskell	2019-11-15 19:08:40
5	Hidden user	0.01 s	Haskell	2019-11-16 14:46:36
6	Aurélien Pepin	0.01 s	Haskell	2019-11-20 14:11:50
7	Andreas Ländle	0.01 s	Haskell	2020-06-12 19:39:03
8	Jan Hrček	0.01 s	Haskell	2020-10-29 18:01:02
9	Thorbjørn Melheim	0.01 s	Haskell	2020-12-17 02:02:30
10	Yen Tien	0.01 s	Haskell	2020-12-30 23:32:50

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2024-12-01 16:14:10
2	Hidden user	0.04 s	Java	2025-03-11 05:48:19
3	Issa Issack	0.05 s	Java	2024-06-30 21:09:41
4	Ryan Lee Ting Zhern	0.06 s	Java	2020-05-28 15:52:24
5	Lim Zhan Hong	0.06 s	Java	2020-06-01 15:08:51
6	Hidden user	0.06 s	Java	2020-06-03 21:36:29
7	Kadin Tang	0.06 s	Java	2020-06-20 05:47:40
8	Igor Trúchlik	0.06 s	Java	2020-06-28 14:38:47
9	Kevin Dai	0.06 s	Java	2020-07-25 17:13:30
10	Martijn Muijsers	0.06 s	Java	2020-08-21 00:02:10

#	User	Runtime	Language	Date
1	Chris Wong	0.41 s	JavaScript (Node.js)	2021-02-17 12:32:15
2	Bas Dirks	0.41 s	JavaScript (Node.js)	2021-12-20 21:14:18
3	Peter Kedemo	0.42 s	JavaScript (Node.js)	2020-01-01 12:32:35
4	Christopher Stromberg	0.42 s	JavaScript (Node.js)	2020-02-13 19:15:10
5	Antony Santos	0.42 s	JavaScript (Node.js)	2020-03-13 21:56:22
6	Tilo Hirsch	0.42 s	JavaScript (Node.js)	2020-07-13 20:15:28
7	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-09 12:58:18
8	Hovhannes Kantuni	0.42 s	JavaScript (Node.js)	2021-03-02 22:28:50

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2019-11-17 11:40:22
2	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-08-23 11:37:37
3	Tor Nordqvist	0.02 s	JavaScript (SpiderMonkey)	2022-12-26 12:59:41
4	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-06 22:17:31
5	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-06-10 18:28:20
6	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-05 00:27:39

#	User	Runtime	Language	Date
1	Danny Robinson	0.21 s	Julia	2023-09-11 00:20:13
2	Timothy Gaede	0.27 s	Julia	2024-03-26 08:29:24
3	Hidden user	0.35 s	Julia	2025-09-12 21:20:11

#	User	Runtime	Language	Date
1	Marit van Dijk	0.14 s	Kotlin	2021-09-17 08:50:36
2	Ola Sundell	0.14 s	Kotlin	2022-10-03 15:23:40
3	Paul Kelley	0.17 s	Kotlin	2019-11-11 18:23:22
4	Filip Belik	0.17 s	Kotlin	2019-11-20 19:05:05
5	Merih Bora Poçan	0.17 s	Kotlin	2020-09-16 08:07:59
6	Dayan Ruben Gonzalez	0.17 s	Kotlin	2020-10-08 04:34:51
7	Sergey Jakobsen	0.17 s	Kotlin	2021-06-07 11:17:26
8	Caden G	0.18 s	Kotlin	2019-11-18 17:10:33
9	Phường Lên	0.19 s	Kotlin	2019-11-19 06:19:12
10	Hidden user	0.19 s	Kotlin	2019-11-19 07:09:18

#	User	Runtime	Language	Date
1	Matthew Lutze	0.00 s	OCaml	2020-06-14 07:50:04

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-11-21 23:48:52
2	高梓軒4D16 Ko Tsz Hin	0.00 s	Pascal	2020-02-06 06:04:10

#	User	Runtime	Language	Date
1	cojonas1	0.01 s	PHP	2021-03-01 16:20:17
2	Zaw Phyo	0.01 s	PHP	2023-04-28 04:21:42

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-19 09:15:11
2	Andriy Zyevakov	0.02 s	Prolog	2023-03-19 17:18:46

#	User	Runtime	Language	Date
1	Nathan Ferragut	0.03 s	Python 2	2019-11-15 20:28:16
2	Johan Lyts	0.03 s	Python 2	2019-11-16 14:23:29
3	Ram Basnet	0.03 s	Python 2	2019-11-17 00:27:53
4	Godmar Back	0.03 s	Python 2	2019-11-17 05:30:49
5	Olav Røthe Bakken	0.03 s	Python 2	2019-11-18 13:56:06
6	Jesper Öqvist	0.03 s	Python 2	2019-11-19 14:47:44
7	Thomas Feld	0.03 s	Python 2	2019-11-26 11:03:56
8	Sigurður Jens Albertsson	0.03 s	Python 2	2019-11-27 01:09:43
9	Mukerem Ali Nur	0.03 s	Python 2	2019-11-27 08:12:25
10	Justin Su	0.03 s	Python 2	2019-11-28 17:06:43

#	User	Runtime	Language	Date
1	Sean Malloy	0.02 s	Python 3	2019-11-15 18:29:37
2	April Chao	0.02 s	Python 3	2019-11-15 19:03:28
3	William Taylor-Melanson	0.02 s	Python 3	2019-11-15 19:55:14
4	Allan Stewart	0.02 s	Python 3	2019-11-15 19:56:20
5	Katya	0.02 s	Python 3	2019-11-15 20:10:48
6	Sebastian Boldsen Jakobsen	0.02 s	Python 3	2019-11-15 20:21:59
7	William Lynch	0.02 s	Python 3	2019-11-15 20:25:26
8	Steffen Andrè Grønmo	0.02 s	Python 3	2019-11-15 20:50:13
9	すうぇっりえるはこん	0.02 s	Python 3	2019-11-15 20:56:05
10	Bjørn Dons	0.02 s	Python 3	2019-11-15 21:04:40

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Ruby	2019-11-17 13:16:36
2	Hidden user	0.04 s	Ruby	2019-11-21 18:05:45
3	Macdara mac an tSionnaigh	0.04 s	Ruby	2019-11-22 22:18:13
4	Thomas Feld	0.06 s	Ruby	2022-12-13 08:08:24

#	User	Length	Language	Date
1	Michael Wichlinski	658	Ada	2025-02-19 06:38:42

#	User	Length	Language	Date
1	Chenzhang Hu	46	Bash	2025-09-12 20:13:29

#	User	Length	Language	Date
1	a_b__c	113	C	2021-02-02 16:03:09
2	Magnus Wass	162	C	2020-03-17 16:21:51
3	PhilCampbell	174	C	2021-01-09 12:18:28
4	Mael MENOU	188	C	2021-12-05 11:54:45
5	Emil Wihlander	189	C	2020-12-09 21:43:04
6	Sambit Palit	190	C	2020-10-13 22:52:21
7	Julian Duniec	191	C	2024-06-25 12:48:58
8	Caleb Kraglund	194	C	2025-09-27 20:57:42
9	Christian Seibold	195	C	2019-11-15 19:55:58
10	Cyrus Leung	198	C	2020-02-06 14:20:46

#	User	Length	Language	Date
1	Hidden user	194	C#	2025-11-12 12:24:54
2	Malte Lundberg	273	C#	2025-09-23 14:23:26
3	Esty Crow	274	C#	2023-02-17 00:13:58
4	Gurpartap Singh Bhatti	278	C#	2019-11-17 04:31:53
5	Nick Wu	279	C#	2022-03-15 00:38:08
6	Thomas Norris	289	C#	2019-11-26 20:05:13
7	Clarissa Limoa	366	C#	2020-12-02 13:37:04
8	Anthony Ye	371	C#	2023-02-19 17:39:24
9	tony shi	406	C#	2023-09-28 21:18:32
10	Göran Andersson	423	C#	2022-05-15 23:25:27

#	User	Length	Language	Date
1	Taylor Rodríguez	88	C++	2025-05-11 04:03:51
2	Tyler Fernando	93	C++	2022-11-02 08:15:39
3	Enrico Manfron	121	C++	2020-06-25 20:03:45
4	Evan Michael Bailey	138	C++	2024-02-23 17:00:35
5	Ohieku Eneji Peacemaker	141	C++	2025-06-01 21:50:13
6	Hidden user	144	C++	2020-08-28 22:41:22
7	Sarah Adel	144	C++	2021-07-04 01:02:06
8	traxex	151	C++	2021-12-14 08:23:36
9	Frans Meulenbroeks	151	C++	2024-10-25 18:23:24
10	Aaron Kenn	152	C++	2025-11-28 13:40:01

#	User	Length	Language	Date
1	Joe Walbran	1123	COBOL	2019-11-17 19:53:46

#	User	Length	Language	Date
1	Hidden user	182	Common Lisp	2020-01-19 06:11:10
2	David Cawthon	252	Common Lisp	2020-06-22 04:25:01

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	339	F#	2022-09-19 20:46:08

#	User	Length	Language	Date
1	David Zacek	211	Go	2021-06-02 00:04:52
2	Resa Renaldy	232	Go	2021-07-16 05:41:49
3	Jahid Hasan Imon	284	Go	2022-02-26 10:02:03
4	Nyamdavaa Amar	295	Go	2022-04-19 20:44:26
5	Krzysztof Gibuła	420	Go	2021-04-20 18:21:30
6	James Leopold	421	Go	2021-11-25 11:10:38
7	Norbert Voelker	870	Go	2021-04-26 12:11:08

#	User	Length	Language	Date
1	Sebastian Banert	115	Haskell	2025-01-23 19:35:51
2	Thorbjørn Melheim	155	Haskell	2020-12-17 02:02:30
3	Leslie Yip	189	Haskell	2022-08-29 01:17:04
4	Aurélien Pepin	199	Haskell	2019-11-20 14:11:50
5	Jan Hrček	205	Haskell	2020-10-29 18:01:02
6	Caleb Surovik	209	Haskell	2021-07-09 19:37:07
7	Brian Hwang	218	Haskell	2021-03-05 01:42:16
8	Anders Aarsæther	225	Haskell	2021-11-08 15:35:45
9	Hidden user	270	Haskell	2019-11-16 14:46:36
10	Brent Yorgey	298	Haskell	2019-11-15 19:08:40

#	User	Length	Language	Date
1	Jason Liu	206	Java	2023-09-08 18:25:20
2	Nicholas Bui	220	Java	2019-11-19 23:58:10
3	Kristóf Németh	225	Java	2025-11-23 13:20:20
4	Calvin Godfrey	258	Java	2019-11-18 18:38:54
5	Logan Simon	280	Java	2020-11-10 22:18:43
6	Lottie Peterson	288	Java	2023-09-24 20:19:49
7	Caeden Whitaker	293	Java	2020-07-08 04:17:13
8	William Huang	300	Java	2020-09-07 05:37:59
9	Javad Jafari	303	Java	2020-02-29 11:48:16
10	Jacob Lee	306	Java	2020-02-11 03:01:13

#	User	Length	Language	Date
1	Peter Kedemo	350	JavaScript (Node.js)	2020-01-01 12:32:35
2	Tilo Hirsch	384	JavaScript (Node.js)	2020-07-13 20:15:28
3	Chris Wong	450	JavaScript (Node.js)	2021-02-17 12:32:15
4	Hovhannes Kantuni	494	JavaScript (Node.js)	2021-03-02 22:28:50
5	Antony Santos	806	JavaScript (Node.js)	2020-03-13 21:56:22
6	Andoko Chandra	811	JavaScript (Node.js)	2020-10-09 12:58:18
7	Bas Dirks	894	JavaScript (Node.js)	2021-12-20 21:14:18
8	Christopher Stromberg	1236	JavaScript (Node.js)	2020-02-13 19:15:10

#	User	Length	Language	Date
1	Jimmy Gustafsson	49	JavaScript (SpiderMonkey)	2024-08-05 00:27:39
2	Christian Pilegaard Cederquist	50	JavaScript (SpiderMonkey)	2023-01-06 22:18:14
3	Bjørn Chr. Soltvedt	115	JavaScript (SpiderMonkey)	2019-11-17 11:40:22
4	Peter Menyes	234	JavaScript (SpiderMonkey)	2021-08-23 11:37:37
5	Zach Tschetter	301	JavaScript (SpiderMonkey)	2023-06-10 18:28:20
6	Tor Nordqvist	370	JavaScript (SpiderMonkey)	2022-12-26 12:59:41

#	User	Length	Language	Date
1	Danny Robinson	70	Julia	2023-09-11 00:20:13
2	Hidden user	74	Julia	2025-09-12 21:25:58
3	Timothy Gaede	190	Julia	2024-03-26 08:29:24

#	User	Length	Language	Date
1	Sergey Jakobsen	162	Kotlin	2021-06-07 11:22:11
2	Troy Warmboe	170	Kotlin	2020-02-09 00:47:37
3	Einar Kjellback	180	Kotlin	2019-11-28 15:33:06
4	Phường Lên	199	Kotlin	2019-11-19 06:19:12
5	Hidden user	218	Kotlin	2019-11-19 07:09:18
6	Merih Bora Poçan	236	Kotlin	2020-09-16 08:07:59
7	Paul Kelley	247	Kotlin	2019-11-11 18:23:22
8	Caden G	247	Kotlin	2019-11-18 17:10:33
9	Filip Belik	247	Kotlin	2019-11-20 19:05:05
10	Dayan Ruben Gonzalez	277	Kotlin	2020-10-08 04:34:51

#	User	Length	Language	Date
1	Matthew Lutze	242	OCaml	2020-06-14 07:50:04

#	User	Length	Language	Date
1	Ingemar Ragnemalm	181	Pascal	2019-11-21 23:48:52
2	高梓軒4D16 Ko Tsz Hin	193	Pascal	2020-02-06 06:04:10

#	User	Length	Language	Date
1	cojonas1	297	PHP	2021-03-01 16:20:17
2	Zaw Phyo	426	PHP	2023-04-28 04:21:42

#	User	Length	Language	Date
1	Hakan Kjellerstrand	134	Prolog	2023-02-19 10:14:53
2	Andriy Zyevakov	349	Prolog	2023-03-19 17:18:46

#	User	Length	Language	Date
1	Thomas Feld	70	Python 2	2019-11-26 11:03:56
2	Johan Lyts	80	Python 2	2019-11-16 14:23:29
3	Guan Yang Ze	93	Python 2	2020-03-13 14:43:28
4	Andreas Björklund	96	Python 2	2020-01-04 09:36:04
5	Sigurður Jens Albertsson	97	Python 2	2019-11-27 01:09:43
6	Jesper Öqvist	100	Python 2	2019-11-19 14:50:32
7	Justin Su	102	Python 2	2019-11-28 17:08:47
8	Nathan Ferragut	105	Python 2	2019-11-15 20:28:16
9	Hugo Nissar	110	Python 2	2019-11-15 23:38:42
10	Olav Røthe Bakken	110	Python 2	2019-11-18 13:56:06

#	User	Length	Language	Date
1	Youssef Zahar	52	Python 3	2022-09-13 02:25:10
2	Max Jytyla	52	Python 3	2022-09-13 02:32:29
3	Clement Oh	52	Python 3	2023-05-18 16:43:44
4	Thibault Raffaillac	52	Python 3	2024-07-30 20:09:00
5	Alexandre Charland	52	Python 3	2024-11-04 16:09:22
6	Taylor Rodríguez	54	Python 3	2025-05-11 04:34:38
7	Guillermo Hernández	55	Python 3	2022-08-26 10:13:33
8	Hakan Kjellerstrand	56	Python 3	2023-02-19 09:38:47
9	Jakob Rødal Skaar	56	Python 3	2023-06-26 14:15:55
10	Kevin Gomez	56	Python 3	2023-09-09 00:45:37

#	User	Length	Language	Date
1	Thomas Feld	43	Ruby	2022-12-13 08:14:15
2	Hidden user	93	Ruby	2019-11-17 13:16:36
3	Macdara mac an tSionnaigh	188	Ruby	2019-11-22 22:18:13
4	Hidden user	190	Ruby	2019-11-21 18:05:45

#	User	Length	Language	Date
1	David Aldenbro	155	Rust	2023-10-26 16:25:30
2	Oskar Strömberg	328	Rust	2020-10-23 23:08:35
3	Artur Khuziakhmetov	341	Rust	2022-07-06 00:57:04
4	Hidden user	343	Rust	2020-07-01 20:24:29
5	Kok Dith	415	Rust	2021-08-14 18:10:32
6	David Rasch	464	Rust	2020-10-08 10:42:23
7	Guilherme Prado	474	Rust	2019-11-30 05:11:21
8	Klas af Geijerstam	501	Rust	2020-01-22 17:00:39
9	Isak Jägberg	529	Rust	2020-06-14 11:52:48
10	Vincent Lagerros	591	Rust	2025-02-06 19:02:32

Solution running time distribution