Backtracking-3 Done

[ManishaRana1195]

No description provided.

[super30admin]

Your solution for the N-Queens problem is excellent. It correctly implements the backtracking algorithm and handles the board conversion properly. The comments are helpful and the code is clean. However, note that the problem only requires the N-Queens solution, so submitting additional files (like WordSearch.java) might be confusing in a real scenario. Make sure to only submit the relevant code for the problem at hand.

A small optimization: you can precompute the board dimensions once and reuse them instead of calling board.length and board[0].length multiple times. For example, you can store the size n when initializing the board and use it throughout.

Also, in the isValidPlacement method, you are checking the same column by decrementing the row index. This is correct, but note that you don't need to check the entire column above because queens are placed row by row, so only the rows above the current row have queens. Your current implementation does this correctly.

Overall, great job!