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Root
333 - Recognizing Good ISBNs
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| Total Submissions | Users that tried it | Users that solved it |
| 21435 | 3385 | 1784 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 17217354 | Alif Ahmed (BUET) | 0.000 | C++ | 2016-04-17 15:48:27 | |
| 2 | 19236022 | Pedro | 0.000 | C++ | 2017-04-24 21:44:33 | |
| 3 | 19253769 | a2746609 | 0.000 | ANSI C | 2017-04-25 11:26:38 | |
| 4 | 17228180 | a2725290 | 0.010 | C++ | 2016-04-19 16:03:19 | |
| 5 | 17304054 | fk6nj9am0kar4 | 0.010 | ANSI C | 2016-05-03 14:12:51 | |
| 6 | 17313175 | Md. Ashraf-ul Asad | 0.010 | C++ | 2016-05-05 01:09:26 | |
| 7 | 17488694 | md | 0.010 | C++ | 2016-06-09 04:18:28 | |
| 8 | 17644860 | NNXuan | 0.010 | C++11 | 2016-07-10 09:49:39 | |
| 9 | 17650236 | BEAN | 0.010 | C++11 | 2016-07-11 08:08:57 | |
| 10 | 17653954 | Nguyen Van Loc- HUBT University | 0.010 | C++11 | 2016-07-12 01:00:21 | |
| 11 | 17714722 | Neither | 0.010 | C++ | 2016-07-22 13:48:22 | |
| 12 | 17778852 | NCV91 | 0.010 | C++11 | 2016-08-03 09:37:39 | |
| 13 | 18159527 | t12344321 | 0.010 | ANSI C | 2016-10-11 01:08:13 | |
| 14 | 18339452 | Hein Blöd | 0.010 | C++ | 2016-11-10 22:27:32 | |
| 15 | 18514843 | Pep Tovel | 0.010 | C++11 | 2016-12-18 09:03:01 | |
| 16 | 18514848 | Andrei Raya | 0.010 | C++11 | 2016-12-18 09:04:22 | |
| 17 | 18518966 | Yamac | 0.010 | C++11 | 2016-12-19 00:25:32 | |
| 18 | 19163360 | realfriend | 0.010 | ANSI C | 2017-04-12 15:04:04 | |
| 19 | 19168037 | a2752880 | 0.010 | ANSI C | 2017-04-13 12:52:40 | |
| 20 | 19172140 | dhxqdjec3pwdc | 0.010 | ANSI C | 2017-04-14 07:42:03 | |