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Root
12559 - Finding Black Circles
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| Total Submissions | Users that tried it | Users that solved it |
| 847 | 105 | 80 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 30789766 | waiwai | 0.000 | C++ | 2025-11-08 12:37:34 | |
| 2 | 19451417 | 李彦宏 | 0.010 | C++ | 2017-06-01 10:08:53 | |
| 3 | 19451452 | 贾跃亭 | 0.010 | C++ | 2017-06-01 10:14:41 | |
| 4 | 19451477 | Yifan Zhang | 0.010 | C++ | 2017-06-01 10:20:56 | |
| 5 | 19710383 | ah_doc | 0.010 | C++ | 2017-07-21 08:08:53 | |
| 6 | 24279816 | 张翼德 | 0.010 | C++11 | 2019-12-04 11:24:06 | |
| 7 | 27528994 | 杨一帆 | 0.010 | C++11 | 2022-05-29 10:33:22 | |
| 8 | 20430914 | 马孟起 | 0.020 | C++11 | 2017-12-02 03:49:46 | |
| 9 | 26673055 | 马化腾 | 0.020 | C++ | 2021-08-10 14:53:08 | |
| 10 | 26673061 | 关云长 | 0.020 | C++ | 2021-08-10 14:55:37 | |
| 11 | 26674545 | 刘强东 | 0.020 | C++ | 2021-08-11 03:37:38 | |
| 12 | 15709984 | Krzysztof Stencel | 0.028 | C++ | 2015-07-02 12:46:25 | |
| 13 | 20430906 | 黄汉升 | 0.030 | C++11 | 2017-12-02 03:48:15 | |
| 14 | 20596426 | 赵子龙 | 0.030 | C++11 | 2018-01-12 03:45:15 | |
| 15 | 15709955 | Marcos Milner | 0.031 | C++ | 2015-07-02 12:37:45 | |
| 16 | 27467319 | Yijun Zhang | 0.050 | C++11 | 2022-05-05 05:25:29 | |
| 17 | 18694980 | yleewei | 0.060 | C++11 | 2017-01-29 07:13:52 | |
| 18 | 24224345 | 兔瓦斯 | 0.060 | C++11 | 2019-11-21 00:16:20 | |
| 19 | 22519040 | Md. Ashraf-ul Asad | 0.070 | C++11 | 2018-12-29 08:28:34 | |
| 20 | 31217353 | Felix Halim | 0.070 | C++11 | 2026-07-18 15:39:03 | |