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Root
12420 - Item-Based Recommendation
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| Total Submissions | Users that tried it | Users that solved it |
| 138 | 59 | 43 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 18734995 | evandrix | 0.000 | C++11 | 2017-02-06 15:02:35 | |
| 2 | 22061694 | Feng Chen | 0.000 | C++11 | 2018-10-02 10:28:42 | |
| 3 | 25270739 | nehc | 0.000 | ANSI C | 2020-07-19 09:28:44 | |
| 4 | 26773591 | seed_zero | 0.000 | C++11 | 2021-09-14 14:08:26 | |
| 5 | 29019679 | Redefinition | 0.000 | C++ | 2023-12-03 09:19:45 | |
| 6 | 31216732 | Felix Halim | 0.000 | C++11 | 2026-07-18 06:04:04 | |
| 7 | 31254569 | 赵子龙 | 0.000 | C++11 | 2026-08-16 01:28:46 | |
| 8 | 31254570 | Qiu Qiu | 0.000 | C++11 | 2026-08-16 01:29:06 | |
| 9 | 16189981 | M4G!C!4N | 0.009 | C++ | 2015-10-01 03:11:02 | |
| 10 | 27124943 | tiger2005 | 0.010 | C++11 | 2022-01-09 06:00:25 | |
| 11 | 27950108 | Kathryn Ivanova | 0.010 | C++11 | 2022-10-26 23:30:04 | |
| 12 | 29668692 | 马孟起 | 0.010 | C++11 | 2024-07-31 01:19:09 | |
| 13 | 29680196 | crowdforces | 0.010 | C++ | 2024-08-05 18:08:52 | |
| 14 | 29682032 | 罗葳林 | 0.010 | C++11 | 2024-08-06 11:59:14 | |
| 15 | 9653379 | Ibrahim Nash | 0.020 | C++ | 2012-01-17 12:40:29 | |
| 16 | 9653454 | SATYENDRA KUMAR BILTHARE | 0.020 | C++ | 2012-01-17 12:55:26 | |
| 17 | 9653499 | Pandit | 0.020 | ANSI C | 2012-01-17 13:09:12 | |
| 18 | 9655547 | Carlos Mendoza | 0.020 | C++ | 2012-01-17 23:09:18 | |
| 19 | 9671220 | Krzysztof Stencel | 0.020 | C++ | 2012-01-23 22:59:38 | |
| 20 | 9680319 | Yuzhou Gu | 0.020 | C++ | 2012-01-27 07:55:19 | |