This is an irregular two-dimensional integer array. He means that there are five elements in array A ... and each element has six elements, which is like this: 00000111111. 333344444 can be declared as follows: int a[3][4]={ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,1.

a[O][O]= 1，a[O][ 1]=2，a[O][2]=3，a[O][3]=4，

a[ 1][O]=5，a[ 1][ 1]=6，a[ 1][2]=7，a[ 1][3]=8，

A[2][O]=9, a[2][ 1]= 10, a[2][2]= 1 1, A[ 2] [3] =1.