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Root
999 - Book signatures
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| Total Submissions | Users that tried it | Users that solved it |
| 632 | 153 | 83 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 25473341 | seed_zero | 0.000 | C++ | 2020-09-10 14:45:21 | |
| 2 | 17904385 | Anjupiter | 0.010 | C++11 | 2016-08-27 05:48:01 | |
| 3 | 18657261 | evandrix | 0.010 | C++11 | 2017-01-21 08:38:27 | |
| 4 | 18690998 | yleewei | 0.010 | C++11 | 2017-01-28 19:38:51 | |
| 5 | 19417790 | Hein Blöd | 0.010 | C++ | 2017-05-25 20:11:24 | |
| 6 | 20866277 | suzuki | 0.010 | C++11 | 2018-03-04 03:35:24 | |
| 7 | 21773346 | Carlos | 0.010 | ANSI C | 2018-08-09 16:18:41 | |
| 8 | 21829461 | Rui-Jie Fang | 0.010 | C++11 | 2018-08-18 19:30:32 | |
| 9 | 24205948 | 兔瓦斯 | 0.010 | C++11 | 2019-11-17 09:38:55 | |
| 10 | 24749056 | shihfu | 0.010 | C++11 | 2020-03-23 10:46:34 | |
| 11 | 25870464 | マタタビ | 0.010 | C++ | 2020-12-21 07:21:48 | |
| 12 | 28360027 | 姚佳成 | 0.010 | C++11 | 2023-04-04 05:42:04 | |
| 13 | 16060651 | M4G!C!4N | 0.016 | C++ | 2015-09-07 16:21:48 | |
| 14 | 21967707 | 周鸿祎 | 0.020 | C++11 | 2018-09-16 07:38:04 | |
| 15 | 21967712 | Ricky | 0.020 | C++11 | 2018-09-16 07:39:32 | |
| 16 | 24077940 | Humaira saida | 0.020 | C++ | 2019-10-20 16:49:09 | |
| 17 | 26724151 | Vladimir Folunin | 0.030 | C++11 | 2021-08-27 22:10:31 | |
| 18 | 15098258 | Details | 0.039 | C++ | 2015-03-07 11:59:14 | |
| 19 | 9989856 | Brian Fry | 0.040 | C++ | 2012-04-13 22:37:38 | |
| 20 | 18963260 | Qiu Qiu | 0.040 | C++11 | 2017-03-14 08:03:02 | |