How many solutions are there for  the 8 queens problem?a.93b.91c.92d.12

How many solutions are there for 8 queens on 8*8 board? ans. 92 12 91 93

Elaborate 8-queens problem using backtracking.

formulate the 8-queens problem as a Constraint Satisfaction Problem (CSP)

The N-queens puzzle is the problem of placing n queens on an n x n chessboard such that no two queens attack each other. A queen can attack horizontally, vertically, or diagonally.Given an integer n, return the number of distinct solutions to the n-queens puzzle.ExampleInput:4Output:2Explanation:There are two distinct solutions to the 4-queens puzzle as shown.Input format :The input consists of a single integer N, representing the size(N*N) of the chessboard.Output format :The output displays an integer that gives the distinct solutions to the n-queens puzzle.Refer to the sample output format for the formatting specifications.Code constraints :In the given scenario, the test cases will fall under the following constraints:2 <= N <=10Sample test cases :Input 1 :4Output 1 :2Input 2 :3Output 2 :0Input 3 :9Output 3 :352

What is the type of the algorithm used in solving the 8 Queens problem?a.Backtrackingb.Branch and Boundc.Divide and Conquerd.Dynamic