[c-prog] Array

[ku_friend64]

Hi,
   Everyone,
please send me the logic of following output in c.
 Take input of the dimension in 2D-Array,presents the following 
 output if user give the dimension 5
                 1   1  1  1  0
                 1   1  1  0 -1
                 1   1  0 -1 -1
                 1   0  -1 -1-1
                 0  -1 -1 -1 -1