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Root
10045 - Echo
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| Total Submissions | Users that tried it | Users that solved it |
| 2235 | 437 | 201 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 9214348 | Igor Kushnir | 0.008 | C++ | 2011-09-02 10:00:48 | |
| 2 | 12919489 | Linus Mellberg | 0.052 | C++ | 2014-01-02 14:36:25 | |
| 3 | 3977657 | Luebeck Pirates | 0.320 | C++ | 2005-09-28 12:32:26 | |
| 4 | 28607008 | 李彦宏 | 0.370 | C++11 | 2023-07-12 13:26:06 | |
| 5 | 29247664 | king | 0.370 | C++11 | 2024-03-02 11:45:10 | |
| 6 | 28607010 | Qiu Qiu | 0.380 | C++11 | 2023-07-12 13:27:54 | |
| 7 | 24219456 | 兔瓦斯 | 0.400 | C++11 | 2019-11-20 01:02:08 | |
| 8 | 24329527 | suzuki | 0.410 | C++11 | 2019-12-17 12:16:48 | |
| 9 | 17250974 | Julian Alfredo Mendez | 0.420 | JAVA | 2016-04-23 14:38:55 | |
| 10 | 28299868 | Yan Kei Observer Mak | 0.450 | PYTH3 | 2023-03-14 00:53:33 | |
| 11 | 7660894 | Robert Lyon | 0.464 | C++ | 2010-01-01 14:39:00 | |
| 12 | 8422638 | Jane Alam Jan | 0.536 | C++ | 2010-11-27 22:35:50 | |
| 13 | 20439396 | Mohammed Khalil Ait Brahim | 0.540 | C++11 | 2017-12-03 22:38:09 | |
| 14 | 753179 | KSHS-NTUEE Kao Yi-hao | 0.541 | C++ | 2002-02-20 14:00:20 | |
| 15 | 17347943 | Tobby and Friends | 0.550 | C++11 | 2016-05-11 14:57:50 | |
| 16 | 18691053 | yleewei | 0.590 | C++11 | 2017-01-28 19:41:54 | |
| 17 | 16393609 | M4G!C!4N | 0.616 | C++ | 2015-11-05 20:50:56 | |
| 18 | 23902358 | se7kazi | 0.620 | C++11 | 2019-09-12 22:35:43 | |
| 19 | 4947302 | Luka Kalinovcic | 0.623 | C++ | 2006-09-16 19:43:30 | |
| 20 | 26573346 | zeed_zero2 | 0.630 | C++11 | 2021-07-15 06:35:59 | |