N Queens Problem Statement

You are provided with an integer 'N'. For an 'N' x 'N' chessboard, determine how to position 'N' queens such that no queen can attack another queen on the chessboard.

Explanation:

A queen can attack if it is positioned on the same row, column, or diagonal as another queen. Your task is to print all possible configurations.

Input:

N

Output:

Each line represents a single configuration.
Each configuration consists of 'N' * 'N' elements, printed row-wise with spaces in between. A position with a queen will have the value 1, otherwise, it will have the value 0.

Example:

Input:

N = 4

Output:

0 1 0 0
0 0 0 1
1 0 0 0
0 0 1 0

0 0 1 0
1 0 0 0
0 0 0 1
0 1 0 0

Constraints:

1

Question

N Queens Problem Statement

You are provided with an integer 'N'. For an 'N' x 'N' chessboard, determine how to position 'N' queens such that no queen can attack another queen on the chessboard.

Explanation:

A queen can attack if it is positioned on the same row, column, or diagonal as another queen. Your task is to print all possible configurations.

Input:

Output:

Each line represents a single configuration.
Each configuration consists of 'N' * 'N' elements, printed row-wise with spaces in between. A position with a queen will have the value 1, otherwise, it will have the value 0.

Example:

Input:

N = 4

Output:

Constraints:

1 <= N <= 10
Time Limit: 1 sec

Note:

You do not need to print anything; the printing is already handled. Just implement the required function.

Accepted Answer

The N Queens problem involves placing N queens on an N x N chessboard so that no two queens can attack each other.

Use backtracking to explore all possible configurations of queen placements.
Keep track of rows, columns, and diagonals to ensure no two queens are attacking each other.
Print all valid configurations of queen placements.