检查数独棋盘的有效性。C程序

#include <stdbool.h>

bool isValidSudoku(char** board, int boardSize, int* boardColSize) {
    bool rows[9][9] = {false};
    bool cols[9][9] = {false};
    bool boxes[9][9] = {false};
    
    for (int i = 0; i < boardSize; i++) {
        for (int j = 0; j < boardColSize[i]; j++) {
            if (board[i][j] != '.') {
                int num = board[i][j] - '1';
                int boxIndex = (i / 3) * 3 + j / 3;
                
                if (rows[i][num] || cols[j][num] || boxes[boxIndex][num]) {
                    return false;
                }
                
                rows[i][num] = true;
                cols[j][num] = true;
                boxes[boxIndex][num] = true;
            }
        }
    }
    
    return true;
}