solved

[jeetusingh247]

No description provided.

[super30admin]

Strengths:

1. The N-Queens solution is correct and efficient.
2. The code is clean and well-commented.
3. The backtracking logic is correctly implemented.

Areas for Improvement:

1. The submission should only include the solution for the problem asked (N-Queens). The Word_Search solution is extraneous and should be removed.
2. In the N-Queens solution, the time complexity comment is slightly inaccurate. It should be O(n!) with an additional O(n) per solution to build the output, but the overall complexity is dominated by the backtracking which is O(n!).
3. The comment in the N-Queens solution says "Time: O(n.n! + nsqr)", which is not precise. The actual complexity is O(n!) for the backtracking, and for each solution, we do O(n^2) to build the board. So overall it is O(n! * n^2). However, since n is small (up to 9), it is acceptable.
4. In the Word_Search solution (though not required), the comment for time complexity is O(3^l), but it should be O(3^l * m * n) because we start from every cell.