[Solved] Identify the error in this win condition checking function:def check_column_win(board): n = len(board) for col in range(n): if all(board[col][row] == 'X' for row in range(n)): return True return False | LLD

LLD - Design — Tic-Tac-Toe Game

Identify the error in this win condition checking function:

def check_column_win(board):
    n = len(board)
    for col in range(n):
        if all(board[col][row] == 'X' for row in range(n)):
            return True
    return False

AThe loop range is incorrect

BThe function does not return a value

CRow and column indices are swapped in board access

DThe all() function is used incorrectly

Step-by-Step Solution

Solution:

Step 1: Analyze the board access pattern
board[col][row] accesses row-th element of col-th row, which is incorrect for column check.
Step 2: Correct index usage
It should be board[row][col] to check all rows in a fixed column.
Final Answer:
Row and column indices are swapped in board access -> Option C
Quick Check:
Swap indices for column check [OK]

Quick Trick: Use board[row][col] to check columns [OK]

Common Mistakes:

MISTAKES

Swapping row and column indices
Forgetting return statement
Wrong loop range

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Identify the error in this win condition checking function:

Step 1: Analyze the board access pattern

Step 2: Correct index usage

Final Answer:

Quick Check:

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