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Root
1019 - Light Bulbs
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| Total Submissions | Users that tried it | Users that solved it |
| 413 | 119 | 78 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 16351606 | M4G!C!4N | 0.000 | C++ | 2015-10-29 14:28:54 | |
| 2 | 17574916 | 陳亭翰 | 0.000 | ANSI C | 2016-06-25 19:21:38 | |
| 3 | 17614088 | TCC | 0.000 | ANSI C | 2016-07-03 17:50:37 | |
| 4 | 17631106 | 陳聖豫 | 0.000 | C++ | 2016-07-07 05:53:04 | |
| 5 | 18858160 | brank | 0.000 | C++ | 2017-02-27 12:04:50 | |
| 6 | 18879374 | Yisheng Deng | 0.000 | ANSI C | 2017-03-02 04:14:55 | |
| 7 | 18880732 | Tim | 0.000 | C++11 | 2017-03-02 09:05:02 | |
| 8 | 18915485 | 翁鈺閎 | 0.000 | ANSI C | 2017-03-07 13:12:30 | |
| 9 | 19095009 | p193202 | 0.000 | C++ | 2017-04-02 07:04:15 | |
| 10 | 20608981 | 贾跃亭 | 0.000 | C++ | 2018-01-15 07:57:59 | |
| 11 | 20672539 | Mamaly | 0.000 | C++11 | 2018-01-27 06:34:36 | |
| 12 | 21201465 | morris821028 | 0.000 | C++11 | 2018-04-24 23:56:24 | |
| 13 | 21393514 | Md. Ashraf-ul Asad | 0.000 | C++11 | 2018-05-30 01:37:35 | |
| 14 | 22226992 | 马化腾 | 0.000 | C++11 | 2018-10-31 23:59:38 | |
| 15 | 23510165 | 王柏元 | 0.000 | ANSI C | 2019-06-25 07:14:18 | |
| 16 | 23519120 | 謝佳勳 | 0.000 | ANSI C | 2019-06-27 11:50:27 | |
| 17 | 24206055 | 兔瓦斯 | 0.000 | C++11 | 2019-11-17 10:03:30 | |
| 18 | 25994013 | Temirlan | 0.000 | PYTH3 | 2021-01-21 22:11:26 | |
| 19 | 25999850 | Kambar | 0.000 | C++11 | 2021-01-23 09:15:33 | |
| 20 | 25999855 | 张翼德 | 0.000 | C++11 | 2021-01-23 09:15:50 | |