the element of 5th row and 0th column

5th element in an array of integer pointers.

int *a[5] means that there are 5 integer pointers[which 
store adresess of only integers] whose adresses are in 
continous locations and each pointer name is accesed by *a
[0],*a[1]....*a[4].for example
a[0]=n means a[0] points to n, a[1]=p means a[1] points to 
p.[where n and p are integers]Let the adress of n and p be 
some 625 and 254 respectively. then a[0] will hold 625 
whose adress is(assume)1000 and a[1]will hold 254 whose 
adress is 1002.similarly the a[2] will hold some adress(if 
u make it to point) with its adress 1004 and a[3] will hold 
some others adress with its adress 1006 and a[4] will hold 
some others adress with its adress 1008.

it simply refers to the value stored in a[4]..."*" denotes 
the value stored and "&" denotes the address of the 
pointer..

a two dimensional array of 5 rows and n columns

array of pointers

Array of pointers...Points the integer values

it refers to the array of addresses or array of pointers
which can hold a 5 element address of integer type only.....
it allocates 5*2=10 bytes of space.... this 2 dosen't refers
that it is an integer so 2 bytes is multiplied.... since any
data type address is always holds 2 bytes of space in most
of the compilers used,..........

thank u