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 | 
| 65515 | wuminyue | Accepted | 2080 KiB  | 1 ms  | C++ | 522 bytes | 2021-08-18 19:14:45 | ||
| 65514 | wuminyue | Accepted | 2080 KiB  | 1 ms  | C++ | 376 bytes | 2021-08-18 19:04:36 | ||
| 65513 | wuminyue | Presentation Error | 2080 KiB  | 2 ms  | C++ | 372 bytes | 2021-08-18 19:03:34 | ||
| 65509 | wuminyue | Accepted | 2080 KiB  | 1 ms  | C++ | 387 bytes | 2021-08-17 18:48:34 | ||
| 65502 | wuminyue | Accepted | 2080 KiB  | 3 ms  | C++ | 527 bytes | 2021-08-16 13:54:01 |