Global or Local Declaration

#1

I was trying to solve the Pattern1 problem, in which i declared rows and columns initially like:

but this prints the stars for one row only. Why? If i do by declaring int cols =0; inside the rows loop it works why?

#2

@mananmodi.0108,
If you declare it inside the loop, it will reset everytime the while loop runs.

if its outside, once it reaches cols = n. It will not reset. Hence it prints only 1 row.