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Root
11214 - Guarding the Chessboard
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| Total Submissions | Users that tried it | Users that solved it |
| 2938 | 320 | 275 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 5938482 | Josh Bao | 0.030 | C++ | 2007-09-25 17:48:09 | |
| 2 | 22231305 | Jim | 0.040 | C++ | 2018-11-01 15:36:45 | |
| 3 | 22231311 | 赵子龙 | 0.040 | C++ | 2018-11-01 15:37:58 | |
| 4 | 22231431 | Bill | 0.040 | C++ | 2018-11-01 15:58:26 | |
| 5 | 23901625 | waiwai | 0.040 | C++ | 2019-09-12 17:17:54 | |
| 6 | 22231437 | 张翼德 | 0.050 | C++ | 2018-11-01 15:59:10 | |
| 7 | 7277399 | ojdaemon | 0.052 | C++ | 2009-07-28 04:25:02 | |
| 8 | 16625633 | huge gun | 0.053 | C++ | 2015-12-24 13:20:25 | |
| 9 | 12361671 | paunchy | 0.069 | C++ | 2013-09-18 06:38:35 | |
| 10 | 22229041 | Sam | 0.070 | C++11 | 2018-11-01 08:54:09 | |
| 11 | 22231283 | 马孟起 | 0.070 | C++ | 2018-11-01 15:32:55 | |
| 12 | 22231412 | Tom | 0.070 | C++ | 2018-11-01 15:54:41 | |
| 13 | 23063326 | xfyydr | 0.070 | C++11 | 2019-03-27 15:14:46 | |
| 14 | 23246337 | 关云长 | 0.070 | C++11 | 2019-04-28 12:18:26 | |
| 15 | 23572595 | Bob | 0.070 | C++11 | 2019-07-10 11:00:52 | |
| 16 | 24577514 | 张景瑞 | 0.070 | C++ | 2020-02-18 03:31:09 | |
| 17 | 26163274 | 黄汉升 | 0.070 | C++ | 2021-03-07 11:29:17 | |
| 18 | 17219893 | Yank | 0.080 | C++11 | 2016-04-18 04:57:37 | |
| 19 | 17921474 | Dalei Yang | 0.080 | C++ | 2016-08-30 08:37:41 | |
| 20 | 17222650 | 王锦浩 | 0.090 | C++11 | 2016-04-18 16:05:05 | |