后3题为提高题,选做。
| RunID | User | Nick Name | Problem ID | Result | Memory | Time | Language | Code Length | Submit Time | 
| 31260 | 208lingujin | Compile Error | 0 KiB  | 0 ms  | C++ | 147 bytes | 2019-12-31 15:36:25 | ||
| 31258 | 208lingujin | Compile Error | 0 KiB  | 0 ms  | C | 147 bytes | 2019-12-31 15:35:59 | ||
| 31228 | 208lingujin | Wrong Answer | 2080 KiB  | 0 ms  | C++ | 221 bytes | 2019-12-31 15:31:32 | ||
| 31087 | 208lingujin | Presentation Error | 2080 KiB  | 1 ms  | C++ | 158 bytes | 2019-12-31 15:03:59 | ||
| 31066 | 208lingujin | Presentation Error | 2080 KiB  | 0 ms  | C++ | 150 bytes | 2019-12-31 15:01:56 |