锯齿数组

实现一个“可变长二维数组”，这个二维数组的行数可由输入决定，每行的元素个数仍可由输入决定。每个数组元素值都是1.

执行结果如下：

请输入行数：

5

请输入第1行的元素个数：

20

请输入第2行的元素个数：

34

请输入第3行的元素个数：

17

请输入第4行的元素个数：

9

请输入第5行的元素个数：

25

11111111111111111111 111 111 11

111 111 11111

111111111 111 111 1111

Press any key to continue-Jagged array to a variable-length two-dimensional array, two-dimensional array, the number of rows can be input to determine the number of elements in each row can still be decided by the input. Each array element values ​ ​ are 1. Execution results are as follows: Enter the number of rows: 5 Please enter the number of elements in the line 1: 20 Enter the number of elements in row 2: 34 Please enter the number of elements of 3 lines Please enter the number of elements in the line 4: 17: Enter the number of elements in the 5 rows: 25 11111111111111111111 1111111111111111111111111111111111 11111111111111111 111111111 1111111111111111111111111 Press any key to continue