Question about dynamic strings

[V3n0M93]

When i compile my code I get an error for this piece of code

char *st[81];
st=new char [n][81];

The error is error C2440: '=' : cannot convert from 'char (*)[81]' to 'char *[81]'

Somewhere I read that I should instead use this

	char (*st) [81];
	st=new char [n][81];

Can somebody explain to me why are the brackets needed. I have only worked with dynamic arrays before and there the brackets were not needed.

[hanst99]

char *st[81]
Is a an 81-element array of char*, whereas char (*st)[81] is a dynamic array of length 81 char arrays.