Problem A
Reverse Polish to Infix Notation (Easy) — Problem Statistics

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Submissions	1544
Accepted submissions	864
Submission ratio	55.96%
Authors	225
Full solves [?]	220
Full solve Ratio	97.78%

#	User	Runtime	Language	Date
1	Deci Bel	0.16 s	C#	2026-01-19 19:02:40

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.01 s	Haskell	2026-01-17 15:25:36
2	Amar Topalovic	0.29 s	Haskell	2019-11-23 21:25:45
3	Brent Yorgey	0.29 s	Haskell	2026-01-11 20:36:54

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.05 s	Java	2026-01-19 15:32:46
2	Jakob Kallestad	0.06 s	Java	2018-08-30 21:48:19
3	John Isak Fjellvang Villanger	0.06 s	Java	2018-08-31 00:05:42
4	Jonas Møller	0.06 s	Java	2018-09-06 18:53:51
5	Joakim Sunde	0.06 s	Java	2018-09-08 23:16:20
6	Petter Daae	0.07 s	Java	2018-08-23 13:06:12
7	Nora Hobæk Hovland	0.07 s	Java	2018-09-06 17:03:24
8	Carl August Gjørsvik	0.07 s	Java	2018-09-06 17:10:37
9	Stian	0.07 s	Java	2018-09-11 21:48:33
10	Kristian Knarvik	0.07 s	Java	2018-09-17 19:09:06

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2026-01-14 07:48:47

#	User	Runtime	Language	Date
1	Timothy Gaede	0.66 s	Julia	2026-01-11 15:02:51

#	User	Runtime	Language	Date
1	Adam Rankin	0.33 s	Kotlin	2026-01-13 17:06:19

#	User	Runtime	Language	Date
1	Sander Oppen	0.04 s	Python 3	2026-01-11 17:30:45
2	Ahmed Chamseddine	0.04 s	Python 3	2026-01-11 20:04:14
3	Rebecca Jackson	0.04 s	Python 3	2026-01-13 01:07:36
4	David Aldenbro	0.04 s	Python 3	2026-01-13 09:18:59
5	Steven Halim	0.04 s	Python 3	2026-01-17 10:00:29
6	Azzy	0.04 s	Python 3	2026-01-25 11:47:06
7	Timothy Sereda	0.04 s	Python 3	2026-01-30 20:23:39
8	Jason Clarke	0.05 s	Python 3	2026-01-11 16:56:19
9	Magnus Eide-Fredriksen	0.05 s	Python 3	2026-01-11 17:47:20
10	Cyrus Taba	0.05 s	Python 3	2026-01-11 20:53:15

#	User	Runtime	Language	Date
1	Eugen Neagoe	0.07 s	Ruby	2026-01-25 15:07:49
2	Matzuka	0.08 s	Ruby	2026-01-11 10:52:11
3	Thomas Feld	0.08 s	Ruby	2026-01-12 14:53:34

#	User	Runtime	Language	Date
1	Frank Endriss	0.00 s	Rust	2026-01-12 21:01:55
2	Vincent Lagerros	0.00 s	Rust	2026-01-14 10:34:07
3	Nathaniel Risum	0.00 s	Rust	2026-01-20 01:27:39

#	User	Length	Language	Date
1	Deci Bel	523	C#	2026-01-19 19:02:40

#	User	Length	Language	Date
1	Armen Andreasyan	388	C++	2026-01-11 13:53:02
2	Ernest Ng Zi Xuan	434	C++	2026-01-21 10:16:03
3	Steinar Simonnes	473	C++	2026-01-17 16:58:05
4	I Lucian	506	C++	2026-01-25 11:07:16
5	ravisantul	513	C++	2026-01-25 09:50:53
6	Bui Phuong Nam	556	C++	2026-01-11 16:02:42
7	Jiaye Will Wang	578	C++	2026-01-14 09:09:03
8	Richon	617	C++	2026-01-12 21:44:31
9	vagabundus	618	C++	2026-01-11 19:46:10
10	Adomas Juodis	628	C++	2026-01-23 08:57:10

#	User	Length	Language	Date
1	Brent Yorgey	352	Haskell	2026-01-11 20:36:54
2	Steinar Simonnes	432	Haskell	2026-01-17 16:57:13
3	Amar Topalovic	649	Haskell	2019-11-23 21:25:45

#	User	Length	Language	Date
1	Sverre Hassel	475	Java	2018-09-15 01:06:34
2	Rune Reimertz	526	Java	2018-08-29 11:43:25
3	Terry Morris	526	Java	2026-01-12 20:42:25
4	Joakim Moss Grutle	535	Java	2018-08-28 14:03:31
5	Kristian André Jakobsen	601	Java	2018-08-22 12:48:43
6	Nora Hobæk Hovland	646	Java	2018-08-23 18:14:37
7	Simen Hornnes	648	Java	2018-08-30 15:54:58
8	Vegard Öztan	653	Java	2018-09-02 21:03:12
9	Simen Lien	660	Java	2018-09-06 14:32:51
10	Karoline Øijorden	669	Java	2018-09-21 23:29:29

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	151	JavaScript (SpiderMonkey)	2026-01-14 07:51:25

#	User	Length	Language	Date
1	Timothy Gaede	319	Julia	2026-01-11 15:02:51

#	User	Length	Language	Date
1	Adam Rankin	431	Kotlin	2026-01-13 17:06:19

#	User	Length	Language	Date
1	Caeden Whitaker	108	Python 3	2026-01-27 06:49:13
2	Ahmed Chamseddine	109	Python 3	2026-01-11 20:04:14
3	Nicholas Russell Saerang	121	Python 3	2026-01-21 02:33:54
4	David Aldenbro	149	Python 3	2026-01-13 09:18:59
5	Zach Tschetter	152	Python 3	2026-01-24 05:42:40
6	Christoph H	161	Python 3	2026-01-29 21:50:13
7	Sander Oppen	164	Python 3	2026-01-11 17:30:45
8	Shashank Bhatt	171	Python 3	2026-01-17 04:36:22
9	Jeviczki Jane	172	Python 3	2026-01-27 01:25:42
10	Marshall D Feng	177	Python 3	2026-01-16 00:48:23

#	User	Length	Language	Date
1	Thomas Feld	59	Ruby	2026-01-12 15:05:20
2	Matzuka	131	Ruby	2026-01-11 11:00:03
3	Eugen Neagoe	174	Ruby	2026-01-25 15:07:49

#	User	Length	Language	Date
1	Nathaniel Risum	929	Rust	2026-01-20 01:27:39
2	Frank Endriss	2443	Rust	2026-01-12 21:01:55
3	Vincent Lagerros	65809	Rust	2026-01-14 10:34:07

Solution running time distribution