Writing a string in a spiral

Question

I had recently participated in coding competion sponsored by an company and there was this one question which I did not understood, as to what was it asking.

Here i

Answer 1

Calculating the minimum square is quite easy. you can just check the no of characters in input string and the minimum square size n*n.

1*1= 1 
2*2 = 4
3*3 = 9

so you can easily find the n by putting in formula

n*n >= length(input string).