如何将全局可用的2d数组转换为malloc数组(可以作为参数传递)

int rows = 3; // 2D数组的行数
int cols = 4; // 2D数组的列数

// 计算元素总个数
int totalElements = rows * cols;

// 使用malloc函数动态分配内存空间
int* mallocArray = (int*)malloc(totalElements * sizeof(int));

int array2D[3][4] = {
    {1, 2, 3, 4},
    {5, 6, 7, 8},
    {9, 10, 11, 12}
};

// 将元素逐个复制到malloc数组中
for (int i = 0; i < rows; i++) {
    for (int j = 0; j < cols; j++) {
        mallocArray[i * cols + j] = array2D[i][j];
    }
}

free(mallocArray);