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Root
501 - Black Box
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| Total Submissions | Users that tried it | Users that solved it |
| 17821 | 2976 | 1915 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 17229948 | Morass | 0.000 | C++11 | 2016-04-19 23:47:43 | |
| 2 | 20534955 | Pedro | 0.000 | C++ | 2017-12-25 20:33:05 | |
| 3 | 28577574 | ScottSuperb | 0.000 | C++11 | 2023-06-30 09:54:26 | |
| 4 | 17185372 | Tiago Montalvão | 0.010 | C++11 | 2016-04-11 18:21:44 | |
| 5 | 17203305 | Igor Carpanese | 0.010 | C++ | 2016-04-15 02:25:33 | |
| 6 | 17730835 | Daniel Maia | 0.010 | C++11 | 2016-07-25 13:10:09 | |
| 7 | 18614059 | Reynald Antonius Wiryana | 0.010 | C++11 | 2017-01-13 04:49:20 | |
| 8 | 18742585 | Muhamed Hafez | 0.010 | C++ | 2017-02-08 00:28:54 | |
| 9 | 22395765 | a1b3c7d9 | 0.010 | C++ | 2018-12-04 10:44:44 | |
| 10 | 22590819 | Isolesty | 0.010 | C++11 | 2019-01-10 13:08:46 | |
| 11 | 22716528 | 比企谷派大星 | 0.010 | C++ | 2019-01-31 07:51:38 | |
| 12 | 22789411 | superMB | 0.010 | C++ | 2019-02-14 01:58:41 | |
| 13 | 22805119 | Ahmed Elsisy | 0.010 | C++11 | 2019-02-16 20:42:07 | |
| 14 | 23534889 | sjh2021 | 0.010 | C++ | 2019-07-01 14:17:22 | |
| 15 | 23538799 | Linfei Lee | 0.010 | C++11 | 2019-07-02 13:12:48 | |
| 16 | 24051029 | Bob | 0.010 | C++11 | 2019-10-15 07:16:52 | |
| 17 | 24178176 | unknownqxf | 0.010 | C++ | 2019-11-11 06:53:51 | |
| 18 | 25690842 | 张子良 | 0.010 | C++ | 2020-11-04 12:27:54 | |
| 19 | 25928095 | 陳俊堯 | 0.010 | C++ | 2021-01-07 15:06:33 | |
| 20 | 25952000 | 張子恩 | 0.010 | C++ | 2021-01-15 08:24:06 | |