Of the following given options, which one of the following does not provides an optimal solution for 8-queens problem?
(a) (5,3,8,4,7,1,6,2)
(b) (1,6,3,8,3,2,4,7)
(c) (4,1,5,8,6,3,7,2)
(d) (6,2,7,1,4,8,5,3)
I got this question by my school principal while I was bunking the class.
My question is based upon Backtracking in portion Backtracking of Data Structures & Algorithms II