Done

[infinitysugam]

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[super30admin]

1. Valid_Soduko.py:

   • Correctness: The solution appears to correctly validate a Sudoku board by checking for duplicates in rows, columns, and 3x3 sub-boxes. However, it might miss some edge cases where the board is not completely filled (which is allowed in Sudoku validation).
   • Time Complexity: The stated O(m*n) is correct, where m and n are the dimensions of the board (9x9 in Sudoku).
   • Space Complexity: The stated O(m*n) is correct, as the solution stores all elements in a list.
   • Code Quality: The code is concise but could benefit from better variable naming (e.g., 'res' could be 'seen_elements') and comments explaining the approach.
   • Efficiency: The solution is efficient for the given problem, but using sets for each row, column, and sub-box could potentially improve both time and space complexity.

2. largest_value_in_each_tree_row.py:

   • Correctness: The solution correctly finds the largest value in each level of a binary tree using BFS. It handles empty trees appropriately.
   • Time Complexity: The stated O(n) is correct, where n is the number of nodes in the tree.
   • Space Complexity: The stated O(n) is correct, as the queue can hold up to n nodes in the worst case.
   • Code Quality: The code is well-structured but could benefit from more descriptive variable names (e.g., 'element' could be 'node'). The indentation is inconsistent in some places.
   • Efficiency: The solution is efficient, but the check for 'i == 0' could be moved outside the loop to improve readability and slightly optimize performance.

Overall, both solutions are correct and efficient, but could benefit from improved code quality and readability.