The space complexity of the solution is O(N^2), where N is the number of queens. This is because we need to store the board configuration and the result list.
The solution uses a backtracking approach to place queens on the board. The solveNQueens method initializes the board and calls the backtrack method to start the backtracking process. jav g-queen
The time complexity of the solution is O(N!), where N is the number of queens. This is because in the worst case, we need to try all possible configurations of the board. The space complexity of the solution is O(N^2),
The isValid method checks if a queen can be placed at a given position on the board by checking the column and diagonals. jav g-queen