Problem A
How Many Digits? — Problem Statistics

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Submissions	9452
Accepted submissions	2591
Submission ratio	27.41%
Authors	2310
Full solves [?]	1830
Full solve Ratio	79.22%

#	User	Runtime	Language	Date
1	Peti29	0.03 s	C#	2017-06-11 14:16:07
2	Kelvin Petry	0.04 s	C#	2019-04-17 14:44:52
3	Mohammad Aldabbgh	0.05 s	C#	2018-12-31 21:45:42
4	Tom Ilestrand	0.05 s	C#	2019-02-19 16:47:05
5	Hidden user	0.06 s	C#	2020-01-27 16:45:39
6	Jonathan Ibrahim	0.09 s	C#	2020-12-04 14:40:25
7	Martin Liu	0.09 s	C#	2023-09-21 11:34:54
8	Martijn den Hoedt	0.10 s	C#	2018-10-11 16:56:39
9	Pim Agterberg	0.10 s	C#	2018-10-11 17:08:03
10	Erik van Holland	0.10 s	C#	2018-10-11 17:44:00

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.08 s	F#	2023-07-11 16:02:07

#	User	Runtime	Language	Date
1	Norbert Voelker	0.04 s	Go	2021-12-10 22:27:00
2	Jeroen Ketelaar	0.11 s	Go	2021-06-03 02:09:14
3	Khin Nyunt	0.12 s	Go	2023-09-14 10:13:49
4	Andriy Zyevakov	0.15 s	Go	2019-07-04 11:59:44
5	bonjour	0.23 s	Go	2018-01-17 16:52:32
6	Hidden user	0.23 s	Go	2018-04-19 22:57:10
7	Krzysztof Gibuła	0.38 s	Go	2021-04-20 01:10:36

#	User	Runtime	Language	Date
1	Paolo Capriotti	0.02 s	Haskell	2016-10-03 02:08:24
2	Abel Martin	0.02 s	Haskell	2017-03-21 16:05:33
3	César Antonio Carvajal de la Haza	0.02 s	Haskell	2017-03-29 17:47:51
4	Miguel Ibáñez García	0.02 s	Haskell	2017-04-16 14:52:19
5	Intrets	0.02 s	Haskell	2019-11-04 23:34:10
6	Leslie Yip	0.02 s	Haskell	2022-10-05 15:28:13
7	姚锦铭	0.03 s	Haskell	2016-09-18 14:20:21
8	Hidden user	0.03 s	Haskell	2020-05-25 20:21:02
9	Morten Lohne	0.05 s	Haskell	2018-04-17 21:20:05
10	Brent Yorgey	0.16 s	Haskell	2017-10-25 05:16:39

#	User	Runtime	Language	Date
1	William Brigham	0.08 s	Java	2017-04-27 21:17:53
2	Đức Phạm Hoài	0.08 s	Java	2018-07-09 09:04:09
3	Michel Langeveld	0.09 s	Java	2016-12-18 08:40:54
4	Kristoffer Borgstrøm	0.09 s	Java	2020-12-27 13:42:51
5	Hidden user	0.10 s	Java	2016-09-04 21:36:10
6	Ranjith M	0.10 s	Java	2025-02-09 05:19:22
7	Duane Littleton	0.11 s	Java	2019-08-08 17:27:35
8	Luke Eales	0.11 s	Java	2022-11-18 15:48:43
9	Varshini Raghunath	0.11 s	Java	2024-11-10 14:29:42
10	Michael Sullivan	0.12 s	Java	2015-12-31 03:58:05

#	User	Runtime	Language	Date
1	John Ladera	0.16 s	JavaScript (Node.js)	2019-06-13 20:51:41
2	Andoko Chandra	0.53 s	JavaScript (Node.js)	2020-10-22 20:16:20
3	Khin Nyunt	0.62 s	JavaScript (Node.js)	2021-11-21 05:30:02
4	Bas Dirks	0.63 s	JavaScript (Node.js)	2022-01-28 15:02:12

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-08-01 21:22:55
2	Christian Pilegaard Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-04-11 10:55:04
3	Zach Tschetter	0.04 s	JavaScript (SpiderMonkey)	2023-06-19 03:13:57
4	Jimmy Gustafsson	0.08 s	JavaScript (SpiderMonkey)	2022-09-06 23:28:47

#	User	Runtime	Language	Date
1	Timothy Gaede	0.61 s	Julia	2024-04-30 13:36:36
2	Roman Gusarev	0.72 s	Julia	2023-06-02 15:04:25

#	User	Runtime	Language	Date
1	Hidden user	0.22 s	Kotlin	2020-03-03 05:40:44
2	Adam Rankin	0.28 s	Kotlin	2023-09-15 17:56:57
3	Leonard Alexander Blechschmidt	0.36 s	Kotlin	2021-11-22 16:34:47
4	Phường Lên	0.38 s	Kotlin	2020-03-03 20:34:59
5	Dayan Ruben Gonzalez	0.40 s	Kotlin	2020-09-27 22:34:05

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-07-14 16:58:47

#	User	Runtime	Language	Date
1	Asbjørn Ottesen Steinskog	0.04 s	Python 2	2015-04-09 11:10:16
2	Tore Norderud	0.04 s	Python 2	2015-07-18 21:36:25
3	Gerry Hall	0.04 s	Python 2	2016-03-27 06:39:55
4	Marko Lazic	0.04 s	Python 2	2016-07-28 23:35:03
5	Daniel Palmqvist	0.04 s	Python 2	2016-09-25 09:42:29
6	Tomas Alvarez	0.04 s	Python 2	2016-11-29 02:10:02
7	Maisam Arif	0.04 s	Python 2	2017-04-03 19:41:53
8	Hidden user	0.04 s	Python 2	2017-04-04 01:03:53
9	Jessica Fang	0.04 s	Python 2	2017-04-04 01:04:32
10	Rachel Campbell	0.04 s	Python 2	2017-04-06 04:43:45

#	User	Runtime	Language	Date
1	Kat Sayrs	0.03 s	Python 3	2016-07-01 14:51:29
2	Alex Weil	0.03 s	Python 3	2016-09-18 21:39:14
3	Christian Lindeström	0.03 s	Python 3	2016-10-04 19:22:48
4	Wayne	0.03 s	Python 3	2017-03-28 14:25:53
5	Innocent Niyibizi	0.03 s	Python 3	2017-04-03 03:02:58
6	Joshua Guerin	0.03 s	Python 3	2017-04-22 22:56:16
7	Ram Basnet	0.03 s	Python 3	2017-05-08 21:47:44
8	Ulrich Goertz	0.03 s	Python 3	2017-06-10 00:22:14
9	Aftaab Dewan	0.03 s	Python 3	2017-10-08 05:49:06
10	Hakan Celik	0.03 s	Python 3	2017-12-14 13:18:04

#	User	Runtime	Language	Date
1	Gerry Hall	0.04 s	Ruby	2016-03-27 06:50:59
2	Erik Rydbert	0.04 s	Ruby	2016-08-02 17:09:50
3	Samuel Jefferis	0.07 s	Ruby	2020-10-08 20:11:50
4	Thomas Feld	0.08 s	Ruby	2023-04-13 12:38:46
5	Zohar Malamant	0.19 s	Ruby	2018-04-20 01:07:27
6	Hidden user	0.31 s	Ruby	2017-10-02 18:49:40

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-08-30 00:22:01
2	Joe Blower	0.00 s	Rust	02:21:08
3	Muhammad Rais Fathin Mudzakir	0.02 s	Rust	2021-06-09 18:56:22
4	Joshua Ji	0.03 s	Rust	2020-11-30 01:18:09
5	Eric Pinter	0.03 s	Rust	2021-06-06 23:53:20
6	Isak Jägberg	0.04 s	Rust	2019-04-27 09:40:41
7	trinity Pointard	0.04 s	Rust	2019-11-04 14:43:45
8	Alex	0.04 s	Rust	2020-11-15 02:13:45
9	Artur Khuziakhmetov	0.04 s	Rust	2025-01-25 15:03:15
10	Egor Kulikov	0.06 s	Rust	2025-01-25 17:26:44

#	User	Length	Language	Date
1	Emy Cabarles	222	C	2017-02-06 14:25:40
2	Josenildo Silva	255	C	2017-12-10 20:15:47
3	Hidden user	261	C	2015-10-03 10:27:52
4	Oussama Hichou	269	C	2019-12-18 20:14:17
5	andromeda378	279	C	2023-12-11 19:18:26
6	Haobo Jiang	306	C	2015-10-12 14:16:54
7	Mirel Cosulschi	307	C	2023-01-12 21:19:23
8	Ali Mahmood Jafri	314	C	2024-04-04 17:42:01
9	Nick Hargrove	315	C	2021-12-19 23:23:55
10	Martin Stensgård	347	C	2016-05-18 05:19:36

#	User	Length	Language	Date
1	Peti29	412	C#	2017-06-11 14:16:07
2	Hidden user	520	C#	2020-01-27 16:45:39
3	Mohammad Aldabbgh	619	C#	2018-12-31 21:45:42
4	Martin Liu	622	C#	2023-09-21 11:34:54
5	Martijn den Hoedt	635	C#	2018-10-11 16:56:39
6	Pim Agterberg	711	C#	2018-10-11 17:08:03
7	Gustav Kalander	744	C#	2018-08-24 21:23:13
8	Apurv Parekh	756	C#	2019-02-21 03:49:18
9	Mike Garrett	778	C#	2021-03-08 10:48:26
10	Jens Schmidt Hansen	1087	C#	2018-10-08 18:37:20

#	User	Length	Language	Date
1	Joakim Blikstad	108	C++	2015-05-26 10:13:07
2	Dagur Þórisson	131	C++	2024-10-25 10:39:57
3	Vincent Lagerros	155	C++	2024-08-30 00:34:21
4	Nasis Dereje	184	C++	2022-08-29 15:47:24
5	Lenny Wu	186	C++	2021-04-06 06:53:19
6	Abdi Tefera	188	C++	2022-08-29 18:55:51
7	David Wärn	194	C++	2015-05-25 20:32:21
8	Scott MacIntosh	204	C++	2019-09-29 23:59:15
9	Yosvany Pizarroza	225	C++	2025-03-26 04:36:03
10	Aidan Edwards	231	C++	2019-02-19 04:20:47

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	650	F#	2023-07-11 16:02:07

#	User	Length	Language	Date
1	Hidden user	355	Go	2018-04-19 22:57:10
2	Khin Nyunt	380	Go	2023-09-14 10:13:49
3	bonjour	403	Go	2018-01-17 16:52:32
4	Jeroen Ketelaar	552	Go	2021-06-03 02:09:14
5	Krzysztof Gibuła	569	Go	2021-04-20 01:10:36
6	Norbert Voelker	991	Go	2023-03-26 01:18:48
7	Andriy Zyevakov	1017	Go	2019-07-04 11:59:44

#	User	Length	Language	Date
1	Birk Tjelmeland	231	Haskell	2017-08-23 14:57:13
2	Leslie Yip	319	Haskell	2022-10-05 15:28:13
3	Robin Christopher Yu	371	Haskell	2018-03-27 22:07:05
4	Intrets	386	Haskell	2019-11-04 23:21:56
5	Zimu Qin	405	Haskell	2015-10-04 22:38:05
6	Paolo Capriotti	410	Haskell	2016-10-03 02:08:24
7	Brent Yorgey	416	Haskell	2017-10-25 05:16:39
8	姚锦铭	500	Haskell	2016-09-18 14:20:21
9	Morten Lohne	508	Haskell	2018-04-17 17:37:54
10	Abel Martin	559	Haskell	2017-03-21 16:05:33

#	User	Length	Language	Date
1	Win Thiri Maung	294	Java	2017-05-27 12:49:03
2	Wei Yi Yen	295	Java	2022-11-09 16:19:39
3	Pedro Contipelli	311	Java	2016-11-24 20:59:45
4	Nicole Barias	311	Java	2023-05-17 03:09:49
5	Noellah Añes	313	Java	2023-05-08 13:19:17
6	Tuan Anh Nguyen	315	Java	2021-11-21 22:23:17
7	Nigel Quinn	316	Java	2018-03-05 02:44:14
8	Hung Nguyen Truong Thanh	317	Java	2018-11-03 17:54:28
9	Memes Ari	317	Java	2021-03-05 15:07:36
10	Su Shwe Yi Tun	318	Java	2017-10-15 14:47:30

#	User	Length	Language	Date
1	Bas Dirks	710	JavaScript (Node.js)	2022-01-28 15:02:12
2	Khin Nyunt	813	JavaScript (Node.js)	2021-11-21 05:30:25
3	Andoko Chandra	1083	JavaScript (Node.js)	2020-10-22 20:16:20
4	John Ladera	11347	JavaScript (Node.js)	2019-06-13 20:41:42

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	83	JavaScript (SpiderMonkey)	2023-04-11 10:55:04
2	Jimmy Gustafsson	164	JavaScript (SpiderMonkey)	2022-09-06 23:28:47
3	Bjørn Chr. Soltvedt	271	JavaScript (SpiderMonkey)	2016-08-01 21:22:55
4	Zach Tschetter	381	JavaScript (SpiderMonkey)	2023-06-19 03:13:57

#	User	Length	Language	Date
1	Roman Gusarev	175	Julia	2023-06-02 15:04:25
2	Timothy Gaede	367	Julia	2024-04-30 13:36:57

#	User	Length	Language	Date
1	Phường Lên	208	Kotlin	2020-03-03 20:34:59
2	Dayan Ruben Gonzalez	278	Kotlin	2020-09-27 22:34:05
3	Adam Rankin	516	Kotlin	2023-09-15 17:56:57
4	Leonard Alexander Blechschmidt	740	Kotlin	2021-11-15 15:35:54
5	Hidden user	1236	Kotlin	2020-03-03 05:40:44

#	User	Length	Language	Date
1	Ingemar Ragnemalm	435	Pascal	2019-07-14 16:58:47

#	User	Length	Language	Date
1	Thomas Feld	135	Python 2	2019-08-26 14:53:15
2	Sigurður Jens Albertsson	137	Python 2	2017-11-29 14:38:19
3	Mehdi Ardunio	151	Python 2	2017-04-27 11:58:35
4	Lars Åström	169	Python 2	2019-10-30 19:20:02
5	Arne Tobias Malkenes Ødegaard	182	Python 2	2015-10-08 19:31:16
6	Daniel Strizhevsky	186	Python 2	2016-09-27 00:01:14
7	Eoin Davey	187	Python 2	2017-08-13 22:47:26
8	Peter Beattie	192	Python 2	2017-11-26 01:00:09
9	Kuan Wei Heng	197	Python 2	2017-09-01 10:04:14
10	Lars Tveito	198	Python 2	2015-09-24 03:14:44

#	User	Length	Language	Date
1	Clement Oh	93	Python 3	2023-05-22 07:21:08
2	David Llorens	110	Python 3	2024-07-09 14:08:08
3	David Aldenbro	117	Python 3	2025-10-26 09:51:31
4	Guk Yi Siong	122	Python 3	2023-07-31 15:03:45
5	Shawn Lee Kai Sheng	129	Python 3	2021-03-15 14:57:06
6	Gao Tianrun	134	Python 3	2024-03-30 09:09:03
7	Casper Rysgaard	136	Python 3	2024-03-20 11:26:34
8	Nicholas Russell Saerang	141	Python 3	2023-07-27 11:00:19
9	Nicholas Johnson	146	Python 3	2023-05-12 23:43:38
10	Sander Oppen	152	Python 3	2024-12-05 14:30:15

#	User	Length	Language	Date
1	Thomas Feld	71	Ruby	2023-04-13 13:10:50
2	Gerry Hall	175	Ruby	2016-03-27 06:50:59
3	Hidden user	301	Ruby	2017-10-02 18:49:40
4	Erik Rydbert	315	Ruby	2016-08-02 17:09:50
5	Samuel Jefferis	359	Ruby	2020-10-08 20:11:50
6	Zohar Malamant	490	Ruby	2018-04-20 01:07:27

#	User	Length	Language	Date
1	Artur Khuziakhmetov	338	Rust	2025-01-25 15:03:15
2	Alex	402	Rust	2020-11-15 02:13:45
3	trinity Pointard	594	Rust	2019-11-04 14:43:45
4	Vincent Lagerros	612	Rust	2024-08-30 01:19:55
5	Joshua Ji	742	Rust	2020-11-30 01:18:09
6	Isak Jägberg	773	Rust	2019-04-27 09:40:41
7	Eric Pinter	1018	Rust	2021-06-06 23:53:20
8	Joe Blower	1772	Rust	02:21:08
9	Muhammad Rais Fathin Mudzakir	3941	Rust	2021-06-09 18:56:22
10	Egor Kulikov	16137	Rust	2025-01-25 17:26:44

Solution running time distribution