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721 - Invitation Cards
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| Total Submissions | Users that tried it | Users that solved it |
| 4389 | 1056 | 793 |
| Top 20 | ||||||
| Ranking | Submission | User | Run Time | Language | Submission Date | |
| 1 | 25723595 | Sampson_YW | 0.040 | C++ | 2020-11-14 16:08:50 | |
| 2 | 30957314 | 赵子龙 | 0.040 | C++11 | 2026-02-04 06:51:56 | |
| 3 | 26715435 | lfxxx | 0.050 | C++ | 2021-08-24 11:13:23 | |
| 4 | 21812513 | aoweiyin | 0.060 | C++ | 2018-08-16 02:38:36 | |
| 5 | 26375061 | CWsSBDB1111 | 0.060 | C++11 | 2021-05-06 11:19:19 | |
| 6 | 26616691 | Akoasm_X | 0.060 | C++ | 2021-07-26 12:10:14 | |
| 7 | 26851832 | 聂天泽 | 0.060 | C++11 | 2021-10-09 06:29:24 | |
| 8 | 27636485 | DDK | 0.060 | C++11 | 2022-07-09 13:37:10 | |
| 9 | 27991638 | cuiyanhao | 0.060 | C++11 | 2022-11-10 15:01:42 | |
| 10 | 22967991 | sunyufei | 0.070 | C++11 | 2019-03-14 10:13:35 | |
| 11 | 23083404 | sjh2021 | 0.070 | C++ | 2019-03-30 22:40:00 | |
| 12 | 24637966 | 晏开文 | 0.070 | C++ | 2020-03-01 11:38:37 | |
| 13 | 25262689 | ccliangbo | 0.070 | C++ | 2020-07-17 08:42:18 | |
| 14 | 25691062 | cgpsysu | 0.070 | C++11 | 2020-11-04 13:34:24 | |
| 15 | 26366558 | 周舟 | 0.070 | C++11 | 2021-05-04 06:45:23 | |
| 16 | 26568420 | clear439666 | 0.070 | C++ | 2021-07-13 16:14:44 | |
| 17 | 26712650 | hehe | 0.070 | C++11 | 2021-08-23 11:29:12 | |
| 18 | 27030943 | 杨铭宇 | 0.070 | C++11 | 2021-12-06 05:36:29 | |
| 19 | 27705872 | Alex Shao | 0.070 | C++11 | 2022-08-05 12:21:37 | |
| 20 | 28081168 | zzq_666 | 0.070 | C++11 | 2022-12-09 10:26:37 | |