数字方阵练习题。模拟法与解析法。解析法注意方阵元素与行列坐标ij的关系。 
若完成后,可以到题库中做题。 
        
| RunID | User | Nick Name | Problem ID | Result | Memory | Time | Language | Code Length | Submit Time | 
| 65751 | chejingrong701 | Accepted | 2080 KiB  | 1 ms  | C++ | 313 bytes | 2021-08-25 14:44:14 | ||
| 65749 | chejingrong701 | Presentation Error | 2080 KiB  | 2 ms  | C++ | 318 bytes | 2021-08-25 14:43:32 | ||
| 65658 | chejingrong701 | Presentation Error | 2080 KiB  | 1 ms  | C++ | 252 bytes | 2021-08-24 21:58:09 | ||
| 65657 | chejingrong701 | Wrong Answer | 2080 KiB  | 0 ms  | C++ | 252 bytes | 2021-08-24 21:57:35 |