I have the following problem which I posed to 4 different LLMs. I want you to carefully read the problem and then each solution. Choose the best ideas and elements from ALL solutions to the extent they are complementary and not conflicting/inconsistent, and then weave together a true hybrid "best of all worlds" implementation which you are highly confident will not only work, but will outperform any of the individual solutions individually:


original prompt:

```
I want you to make me a super sophisticated yet performant python function called "fix_invalid_markdown_tables" that takes markdown text as input and looks for tables that are invalid, then diagnoses what is wrong with them, and fixes them in a minimally invasive way. The function should make no change at all to any tables that ARE valid, and it should skip over any non-table content completely. 

Here are examples of invalid tables it should be able to fix:

```

| ●| we have a limited customer base and limited sales and relationships with
international customers;  
---|---|---  
| ●| difficulty in managing multinational operations;  
---|---|---  
  
| ●| we may face competitors in the overseas markets who are more dominant and
have stronger ties with customers and greater financial and other resources;  
---|---|---  
| ●| fluctuations in currency exchange rates;  
---|---|---  
| ●| challenges in providing customer services and support in these markets;  
---|---|---  
| ●| challenges in managing our international sales channels effectively;  
---|---|---  
| ●| unexpected transportation delays or interruptions or increases in
international transportation costs;  
---|---|---  
| ●| difficulties in and costs of exporting products overseas while complying
with the different commercial, legal and regulatory requirements of the
overseas markets in which we offer our products;  
---|---|---  
| ●| difficulty in ensuring that our customers comply with the sanctions
imposed by the Office of Foreign Assets Control, or OFAC, on various foreign
states, organizations and individuals;  
---|---|---  
| ●| inability to obtain, maintain or enforce intellectual property rights;  
---|---|---  
| ●| inability to effectively enforce contractual or legal rights or
intellectual property rights in certain jurisdictions under which we operate,
including contracts with our existing and future customers and partners;  
---|---|---  
| ●| changes in a specific country or region’s political or economic
conditions or policies;  
---|---|---  
| ●| unanticipated changes in prevailing economic conditions and regulatory
requirements; and  
---|---|---  
  
```

```
**Title of each class**|  | **Trading****  
****Symbol**|  | **Name of each exchange on which********registered**  
---|---|---|---|---  
American Depositary Shares, each representing 15  
Class A ordinary share| ​| CAN| ​| NASDAQ Global Market.  
Class A ordinary shares, par value US$0.00000005  
per share*| ​| ​| ​| NASDAQ Global Market.  
```

```

|  | July 31,|  |  | October 31,|   
---|---|---|---|---|---|---  
|  | 2023|  |  | 2022|   
|  | (unaudited)|  |  |  |   
ASSETS|  |  |  |  |  |  |  |   
Current assets:|  |  |  |  |  |  |  |   
Cash and cash equivalents|  | $| 1,506,028|  |  | $| 73,648|   
Prepaid expenses and other receivables|  |  | 124,290|  |  |  | 35,000|   
Deferred offering costs|  |  | -|  |  |  | 1,643,881|   
Total current assets|  |  | 1,630,318|  |  |  | 1,752,529|   
|  |  |  |  |  |  |  |   
Oil and gas properties - not subject to amortization|  |  | 9,045,333|  |  |  | 5,836,232|   
Advance to operators|  |  | 494,950|  |  |  | 1,900,000|   
Total assets|  | $| 11,170,601|  |  | $| 9,488,761|   
|  |  |  |  |  |  |  |   
LIABILITIES AND STOCKHOLDERS’ EQUITY|  |  |  |  |  |  |  |   
Current liabilities:|  |  |  |  |  |  |  |   
Accounts payable and accrued liabilities|  | $| 819,926|  |  | $| 1,164,055|   
Asset retirement obligations – current|  |  | 2,778|  |  |  | 2,778|   
Notes payable - investors, net of discounts|  |  | -|  |  |  | 4,403,439|   
Notes payable - related party, net of discounts|  |  | -|  |  |  | 1,025,497|   
Warrants liability|  |  | -|  |  |  | 114,883|   
Total current liabilities|  |  | 822,704|  |  |  | 6,710,652|   
|  |  |  |  |  |  |  |   
Long-term liabilities:|  |  |  |  |  |  |  |   
Franchise tax accrual|  |  | 3,750|  |  |  | 9,450|   
Asset retirement obligations, net of current portion|  |  | 47,619|  |  |  | 45,535|   
Total Long-term liabilities|  |  | 51,369|  |  |  | 54,985|   
Total liabilities|  |  | 874,073|  |  |  | 6,765,637|   
|  |  |  |  |  |  |  |   
Commitments and Contingencies (Note 7)|  |  | -|  |  |  | -|   
|  |  |  |  |  |  |  |   
Stockholders’ Equity:|  |  |  |  |  |  |  |   
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; -0\- shares issued and outstanding at July 31, 2023 and October 31, 2022, respectively|  |  | -|  |  |  | -|   
|  |  |  |  |  |  |  |   
Common stock, $0.0001 par value; 490,000,000 shares authorized; 29,621,516 and 16,972,800 shares issued and outstanding as of July 31, 2023 and October 31, 2022, respectively|  |  | 2,962|  |  |  | 1,697|   
Stock subscription receivable|  |  | (10,010| )|  |  | (10,010| )  
Additional paid-in capital|  |  | 19,430,871|  |  |  | 6,633,893|   
Accumulated deficit|  |  | (9,127,295| )|  |  | (3,902,456| )  
Total stockholders’ equity|  |  | 10,296,528|  |  |  | 2,723,124|   
|  |  |  |  |  |  |  |   
Total liabilities and stockholders’ equity|  | $| 11,170,601|  |  | $| 9,488,761|   
  
```

```


Reponses from different LLMs:


O1-pro:

```
import re

def fix_invalid_markdown_tables(markdown_text):
    def merge_continuation_lines(lines):
        merged = []
        cur = None
        for ln in lines:
            if '|' in ln:
                if cur is not None: merged.append(cur)
                cur = ln
            elif ln.strip():
                if cur is not None: cur += " " + ln.strip()
                else: cur = ln
            else:
                if cur is not None: merged.append(cur)
                cur = None
                merged.append(ln)
        if cur is not None: merged.append(cur)
        return merged

    def parse_row(line):
        s = line.strip()
        has_lead = s.startswith('|')
        has_tail = s.endswith('|')
        if has_lead: s = s[1:]
        if has_tail: s = s[:-1]
        return [c.strip() for c in s.split('|')]

    def is_separator_cell(cell):
        return re.fullmatch(r':?-{3,}:?', cell.strip()) is not None

    def is_separator_row(cells):
        return all(is_separator_cell(c) for c in cells if c.strip())

    def is_valid_table(lines):
        if len(lines) < 2: return False
        rows = [parse_row(ln) for ln in lines]
        if not is_separator_row(rows[1]): return False
        n = len(rows[0])
        return all(len(r) == n for r in rows)

    def detect_repeated_separators(rows):
        # Returns True if more than half of the odd rows are separator lines
        if len(rows) < 3: return False
        odd_sep_count = sum(is_separator_row(rows[i]) for i in range(1, len(rows), 2))
        return odd_sep_count >= (len(rows) - 1)//2

    def rebuild_row(cells, style):
        s = " | ".join(cells)
        if style[0]: s = "| " + s
        if style[1]: s += " |"
        return s

    def fix_table_block(block):
        merged = merge_continuation_lines(block)
        if len(merged) < 2: return block
        if is_valid_table(merged): return block

        rows_parsed = [parse_row(ln) for ln in merged]
        style = (merged[0].strip().startswith('|'), merged[0].strip().endswith('|'))
        max_cols = max(len(r) for r in rows_parsed)
        sep_flags = [is_separator_row(r) for r in rows_parsed]
        repeated_sep = detect_repeated_separators(rows_parsed)

        def normalize(r):
            if len(r) < max_cols:
                return r + ['']*(max_cols - len(r))
            elif len(r) > max_cols:
                return r[:max_cols-1] + [' '.join(r[max_cols-1:])]
            else:
                return r

        rows_parsed = [normalize(r) for r in rows_parsed]
        fixed = [rows_parsed[0]]
        fixed.append(["---"]*max_cols)
        if repeated_sep:
            i = 1
            while i < len(rows_parsed):
                if sep_flags[i]:
                    i += 1
                    continue
                fixed.append(rows_parsed[i])
                fixed.append(["---"]*max_cols)
                i += 1
        else:
            for i in range(2, len(rows_parsed)):
                if not sep_flags[i]:
                    fixed.append(rows_parsed[i])
        return [rebuild_row(r, style) for r in fixed]

    lines = markdown_text.splitlines()
    out = []
    block = []
    in_table = False
    for line in lines:
        if '|' in line:
            block.append(line)
            in_table = True
        else:
            if in_table:
                out.extend(fix_table_block(block))
                block = []
                in_table = False
            out.append(line)
    if block: out.extend(fix_table_block(block))
    return "\n".join(out)

```


o3-mini-high:

```
import re

def fix_invalid_markdown_tables(markdown_text):
    lines = markdown_text.splitlines()
    output = []
    table_block = []
    in_table = False
    for line in lines:
        if '|' in line:
            table_block.append(line)
            in_table = True
        else:
            if in_table:
                output.extend(process_table_block(table_block))
                table_block = []
                in_table = False
            output.append(line)
    if table_block:
        output.extend(process_table_block(table_block))
    return "\n".join(output)

def process_table_block(block_lines):
    merged = merge_continuation_lines(block_lines)
    if len(merged) < 2 or not any('|' in ln for ln in merged):
        return block_lines
    if is_valid_table(merged):
        return block_lines  # already valid
    return fix_table_block(merged, block_lines[0])

def merge_continuation_lines(lines):
    merged = []
    current = None
    for line in lines:
        if '|' in line:
            if current is not None:
                merged.append(current)
            current = line.rstrip()
        elif line.strip():
            if current is not None:
                current += " " + line.strip()
            else:
                current = line.rstrip()
        else:
            if current is not None:
                merged.append(current)
                current = None
            merged.append(line)
    if current is not None:
        merged.append(current)
    return merged

def parse_row(line):
    s = line.strip()
    if s.startswith('|'):
        s = s[1:]
    if s.endswith('|'):
        s = s[:-1]
    return [cell.strip() for cell in s.split('|')]

def is_separator_cell(cell):
    return re.fullmatch(r':?-{3,}:?', cell.strip()) is not None

def is_separator_row(cells):
    return all(is_separator_cell(cell) for cell in cells if cell.strip())

def is_valid_table(lines):
    if len(lines) < 2:
        return False
    rows = [parse_row(ln) for ln in lines if '|' in ln]
    if len(rows) < 2:
        return False
    if not is_separator_row(rows[1]):
        return False
    col_count = len(rows[0])
    return all(len(row) == col_count for row in rows)

def detect_table_style(line):
    s = line.strip()
    return (s.startswith('|'), s.endswith('|'))

def rebuild_row(cells, style):
    row = " | ".join(cells)
    if style[0]:
        row = "|" + row
    if style[1]:
        row = row + "|"
    return row

def normalize_row(row, target_cols):
    if len(row) < target_cols:
        return row + [''] * (target_cols - len(row))
    elif len(row) > target_cols:
        return row[:target_cols-1] + [" ".join(row[target_cols-1:])]
    return row

def detect_separator_pattern(parsed_rows):
    if len(parsed_rows) < 3:
        return False
    sep_indices = [i for i, row in enumerate(parsed_rows) if is_separator_row(row)]
    total_odds = (len(parsed_rows) - 1) // 2
    return len(sep_indices) >= total_odds and all(i % 2 == 1 for i in sep_indices)

def fix_table_block(merged_lines, first_line):
    parsed = [parse_row(ln) for ln in merged_lines]
    style = detect_table_style(first_line)
    max_cols = max(len(r) for r in parsed)
    parsed = [normalize_row(r, max_cols) for r in parsed]
    fixed = []
    if detect_separator_pattern(parsed):
        # Use header then add a separator after each data row.
        fixed.append(parsed[0])
        fixed.append(['---'] * max_cols)
        idx = 1
        while idx < len(parsed):
            if is_separator_row(parsed[idx]):
                idx += 1
                continue
            fixed.append(parsed[idx])
            fixed.append(['---'] * max_cols)
            idx += 1
    else:
        # Standard table: header, one separator, then data rows.
        fixed.append(parsed[0])
        fixed.append(['---'] * max_cols)
        for row in parsed[2:]:
            if is_separator_row(row):
                continue
            fixed.append(row)
    return [rebuild_row(r, style) for r in fixed]

# Example usage:
if __name__ == "__main__":
    test_md = (
        "| ●| we have a limited customer base and limited sales and relationships with\n"
        "international customers;\n"
        "---|---|---  \n"
        "| ●| difficulty in managing multinational operations;\n"
        "---|---|---"
    )
    print(fix_invalid_markdown_tables(test_md))


```


Grok3 with thinking:

```
import re

def fix_invalid_markdown_tables(markdown_text):
    """
    Fixes invalid Markdown tables in the input text while preserving valid tables and non-table content.

    Args:
        markdown_text (str): Markdown text containing potential tables.
    Returns:
        str: Markdown text with invalid tables fixed.
    """
    lines = markdown_text.splitlines()
    output = []
    table_block = []
    in_table = False

    for line in lines:
        if '|' in line:
            table_block.append(line)
            in_table = True
        else:
            if in_table:
                output.extend(process_table_block(table_block))
                table_block = []
                in_table = False
            output.append(line)
    if table_block:
        output.extend(process_table_block(table_block))
    return "\n".join(output)

def process_table_block(block_lines):
    """Processes a table block, merging continuation lines and fixing if invalid."""
    merged_lines = merge_continuation_lines(block_lines)
    if len(merged_lines) < 2:
        return block_lines  # Too few lines to be a table
    if is_valid_table(merged_lines):
        return block_lines  # Preserve valid tables
    return fix_table_block(merged_lines)

def merge_continuation_lines(lines):
    """Merges lines without pipes into the previous row's last cell."""
    merged = []
    for line in lines:
        if '|' in line:
            merged.append(line)
        elif merged and line.strip():
            merged[-1] += ' ' + line.strip()
    return merged

def parse_row(line):
    """Splits a row into cells, handling leading/trailing pipes."""
    stripped = line.strip()
    if stripped.startswith('|'):
        cells = stripped[1:].split('|')
    else:
        cells = stripped.split('|')
    if stripped.endswith('|'):
        cells = cells[:-1]
    return [cell.strip() for cell in cells]

def is_separator_row(cells):
    """Determines if a row is a separator (e.g., ---, :--, :-:)."""
    if not cells:
        return False
    return all(re.fullmatch(r':?-{3,}:?', cell.strip()) for cell in cells if cell.strip())

def is_valid_table(lines):
    """Checks if a table is valid: has ≥2 rows, a separator as row 2, and consistent columns."""
    if len(lines) < 2:
        return False
    rows = [parse_row(line) for line in lines]
    if not is_separator_row(rows[1]):
        return False
    col_count = len(rows[0])
    return all(len(row) == col_count for row in rows)

def normalize_row(row, col_count):
    """Normalizes a row to have the specified number of columns."""
    if len(row) < col_count:
        return row + [''] * (col_count - len(row))
    elif len(row) > col_count:
        return row[:col_count-1] + [' '.join(row[col_count-1:])]
    return row

def rebuild_row(cells, has_leading_pipe, has_trailing_pipe):
    """Rebuilds a row from cells with specified pipe style."""
    cell_str = ' | '.join(cells)
    if has_leading_pipe:
        cell_str = '| ' + cell_str
    if has_trailing_pipe:
        cell_str += ' |'
    return cell_str

def get_table_style(line):
    """Extracts table style (leading/trailing pipes) from a line."""
    stripped = line.strip()
    return (stripped.startswith('|'), stripped.endswith('|'))

def fix_table_block(merged_lines):
    """Fixes an invalid table block, normalizing columns and rebuilding structure."""
    # Parse rows and identify separators
    parsed_rows = [parse_row(line) for line in merged_lines]
    is_sep = [is_separator_row(row) for row in parsed_rows]
    sep_indices = [i for i, s in enumerate(is_sep) if s]

    # Determine column count
    col_count = max(len(row) for row in parsed_rows) if parsed_rows else 0
    if col_count == 0:
        return merged_lines

    # Normalize all rows to col_count
    normalized_rows = [normalize_row(row, col_count) for row in parsed_rows]

    # Detect table pattern
    if len(sep_indices) == 1 and sep_indices[0] == 1:
        pattern = 'standard'
    elif len(sep_indices) > 1 and all(i % 2 == 1 for i in sep_indices):
        pattern = 'separator_after_each'
    else:
        pattern = 'no_separator'

    # Preserve table style from first line
    style = get_table_style(merged_lines[0])
    fixed_lines = []

    if pattern == 'standard':
        # Header, normalized separator, then data rows
        fixed_lines.append(rebuild_row(normalized_rows[0], *style))
        separator = ['---'] * col_count
        fixed_lines.append(rebuild_row(separator, *style))
        for i in range(2, len(normalized_rows)):
            if not is_sep[i]:
                fixed_lines.append(rebuild_row(normalized_rows[i], *style))

    elif pattern == 'separator_after_each':
        # Header, separator, then data row + separator pairs
        fixed_lines.append(rebuild_row(normalized_rows[0], *style))
        separator = ['---'] * col_count
        fixed_lines.append(rebuild_row(separator, *style))
        for i in range(2, len(normalized_rows), 2):
            if i < len(normalized_rows) and not is_sep[i]:
                fixed_lines.append(rebuild_row(normalized_rows[i], *style))
                fixed_lines.append(rebuild_row(separator, *style))

    else:  # no_separator
        # Insert separator after header
        fixed_lines.append(rebuild_row(normalized_rows[0], *style))
        separator = ['---'] * col_count
        fixed_lines.append(rebuild_row(separator, *style))
        for row in normalized_rows[1:]:
            fixed_lines.append(rebuild_row(row, *style))

    return fixed_lines

# Example usage
if __name__ == "__main__":
    test_input = """| ● | we have a limited customer base and limited sales and relationships with international customers;\n---|---|---\n| ● | difficulty in managing multinational operations;\n---|---|---"""
    print("Fixed Table:")
    print(fix_invalid_markdown_tables(test_input))

```


Claude3.7 with thinking:

```
import re

def fix_invalid_markdown_tables(markdown_text):
    """
    Fix invalid markdown tables in text while preserving valid tables and non-table content.
    
    This function:
    - Identifies invalid markdown tables
    - Diagnoses issues with the tables
    - Fixes them in a minimally invasive way
    - Makes no change to valid tables
    - Skips over non-table content
    
    Args:
        markdown_text (str): Markdown text containing potential tables
        
    Returns:
        str: Markdown text with fixed tables
    """
    lines = markdown_text.splitlines()
    result_lines = []
    table_block = []
    inside_table = False
    
    # Process each line of the input text
    i = 0
    while i < len(lines):
        line = lines[i]
        
        if '|' in line:
            # Potential table line
            if not inside_table:
                # Starting a new table
                inside_table = True
            table_block.append(line)
        elif inside_table and line.strip():
            # Continuation line for a multi-line cell
            table_block.append(line)
        else:
            # Not part of a table, process any accumulated table block
            if inside_table:
                fixed_table = process_table_block(table_block)
                result_lines.extend(fixed_table)
                table_block = []
                inside_table = False
            
            # Add the non-table line
            result_lines.append(line)
        
        i += 1
    
    # Handle any remaining table at the end
    if inside_table:
        fixed_table = process_table_block(table_block)
        result_lines.extend(fixed_table)
    
    return '\n'.join(result_lines)

def process_table_block(block_lines):
    """
    Process a block of lines that might contain a markdown table.
    
    Args:
        block_lines (list): Lines that potentially form a table
        
    Returns:
        list: Fixed table lines or the original lines if already valid
    """
    # Skip if no table content
    if not block_lines or not any('|' in line for line in block_lines):
        return block_lines
    
    # First, merge continuation lines
    merged_lines = merge_continuation_lines(block_lines)
    
    # Check if the merged version is a valid table
    if is_valid_table(merged_lines):
        # Table is already valid, preserve it exactly
        return block_lines
    
    # Table is invalid, fix it
    return fix_invalid_table(merged_lines)

def merge_continuation_lines(lines):
    """
    Merge lines that are continuations of multi-line cells.
    
    This function handles cases where a cell's content spans multiple lines,
    which is common in complex markdown tables.
    
    Args:
        lines (list): List of lines that might contain multi-line cells
        
    Returns:
        list: Lines with continuations merged
    """
    merged = []
    current = None
    
    for line in lines:
        if '|' in line:
            # This is a table row
            if current is not None:
                merged.append(current)
            current = line
        elif line.strip() and current is not None:
            # This is a continuation of the previous line
            current += ' ' + line.strip()
        else:
            # Empty line or non-continuation
            if current is not None:
                merged.append(current)
                current = None
            if line.strip():
                merged.append(line)
    
    if current is not None:
        merged.append(current)
    
    return merged

def parse_table_row(line):
    """
    Parse a table row into cells, handling leading/trailing pipes.
    
    Args:
        line (str): A table row
        
    Returns:
        list: The cells in the row
    """
    if not line or '|' not in line:
        return []
    
    # Split by pipe
    parts = line.split('|')
    
    # Handle leading/trailing pipes
    if line.strip().startswith('|'):
        parts = parts[1:]
    if line.strip().endswith('|'):
        parts = parts[:-1]
    
    return [p.strip() for p in parts]

def is_separator_cell(cell):
    """
    Check if a cell contains a valid separator pattern (e.g., ---, :--:).
    
    Args:
        cell (str): The cell content
        
    Returns:
        bool: True if it's a valid separator cell, False otherwise
    """
    return bool(re.fullmatch(r':?-{3,}:?', cell.strip()))

def is_separator_row(cells):
    """
    Check if cells represent a separator row.
    
    A separator row consists of cells that contain only dashes, 
    optionally with colons for alignment.
    
    Args:
        cells (list): Table row cells
        
    Returns:
        bool: True if it's a separator row, False otherwise
    """
    if not cells:
        return False
    
    # Every non-empty cell must match the separator pattern
    return all(is_separator_cell(cell) for cell in cells if cell.strip())

def is_valid_table(lines):
    """
    Check if a markdown table is valid.
    
    A valid markdown table must have:
    - At least 2 rows (header and separator)
    - A separator row as the second row
    - Consistent column counts across all rows
    
    Args:
        lines (list): Table lines
        
    Returns:
        bool: True if the table is valid, False otherwise
    """
    # Need at least 2 lines for a valid table
    if len(lines) < 2:
        return False
    
    # Parse rows into cells
    rows = [parse_table_row(line) for line in lines if '|' in line]
    if len(rows) < 2:
        return False
    
    # Check if second row is a separator
    if not is_separator_row(rows[1]):
        return False
    
    # Check column count consistency
    col_count = len(rows[0])
    return all(len(row) == col_count for row in rows)

def get_table_style(line):
    """
    Determine the table style (leading/trailing pipes) from a row.
    
    Args:
        line (str): A table row
        
    Returns:
        tuple: (has_leading_pipe, has_trailing_pipe)
    """
    stripped = line.strip()
    has_leading = stripped.startswith('|')
    has_trailing = stripped.endswith('|')
    return (has_leading, has_trailing)

def detect_table_pattern(lines):
    """
    Detect the pattern of the table (e.g., if it has separators after each row).
    
    Args:
        lines (list): The table lines
        
    Returns:
        dict: Pattern information
    """
    table_lines = [line for line in lines if '|' in line]
    parsed_rows = [parse_table_row(line) for line in table_lines]
    is_sep = [is_separator_row(row) for row in parsed_rows]
    separator_indices = [i for i, sep in enumerate(is_sep) if sep]
    
    pattern = {
        'has_separators_after_each_row': False,
        'separator_indices': separator_indices
    }
    
    # Check for repeating pattern (separator after each data row)
    if len(separator_indices) >= 2:
        # Count how many rows have a separator after them
        separator_pattern_count = sum(1 for i in range(len(is_sep)-1) if not is_sep[i] and is_sep[i+1])
        data_row_count = sum(1 for sep in is_sep if not sep)
        
        # If more than half of data rows have a separator after them, consider it a pattern
        if separator_pattern_count >= data_row_count / 2:
            pattern['has_separators_after_each_row'] = True
    
    return pattern

def normalize_row(row, target_cols):
    """
    Normalize a row to have the target number of columns.
    
    If the row has fewer cells than required, it's padded with empty cells.
    If it has more, the excess cells are merged into the last one.
    
    Args:
        row (list): The row cells
        target_cols (int): The target number of columns
        
    Returns:
        list: Normalized row cells
    """
    if not row:
        return [''] * target_cols
    
    if len(row) < target_cols:
        # Pad with empty cells
        return row + [''] * (target_cols - len(row))
    elif len(row) > target_cols:
        # Merge excess cells into the last one
        if target_cols > 1:
            return row[:target_cols-1] + [' '.join(row[target_cols-1:])]
        else:
            return [' '.join(row)]
    else:
        # Already correct length
        return row

def rebuild_row(cells, has_leading_pipe, has_trailing_pipe):
    """
    Rebuild a table row from its cells.
    
    Args:
        cells (list): The cells in the row
        has_leading_pipe (bool): Whether to include a leading pipe
        has_trailing_pipe (bool): Whether to include a trailing pipe
        
    Returns:
        str: The rebuilt row
    """
    if not cells:
        return ''
    
    cell_str = ' | '.join(cells)
    
    if has_leading_pipe:
        cell_str = '| ' + cell_str
    
    if has_trailing_pipe:
        cell_str = cell_str + ' |'
    
    return cell_str

def fix_invalid_table(lines):
    """
    Fix an invalid markdown table with minimal changes.
    
    Args:
        lines (list): The merged table lines
        
    Returns:
        list: Fixed table lines
    """
    # Filter out lines that don't contain pipe characters
    table_lines = [line for line in lines if '|' in line]
    if not table_lines:
        return lines
    
    # Get table style from the first line
    style = get_table_style(table_lines[0])
    
    # Parse all rows
    parsed_rows = [parse_table_row(line) for line in table_lines]
    
    # Calculate max columns across all rows
    max_cols = max(len(row) for row in parsed_rows) if parsed_rows else 0
    
    # Identify rows that are data rows vs separators
    is_separator = [is_separator_row(row) for row in parsed_rows]
    
    # Detect table pattern
    pattern = detect_table_pattern(lines)
    
    # Create fixed output
    fixed_lines = []
    
    if pattern['has_separators_after_each_row']:
        # Special case: table has separator after each row (seen in examples)
        # Start with header
        header = normalize_row(parsed_rows[0], max_cols)
        fixed_lines.append(rebuild_row(header, style[0], style[1]))
        
        # Add separator after header
        separator = ['---'] * max_cols
        fixed_lines.append(rebuild_row(separator, style[0], style[1]))
        
        # Process remaining rows, ensuring separator after each data row
        i = 1
        while i < len(parsed_rows):
            if is_separator[i]:
                # Skip existing separator
                i += 1
                continue
            
            # Add data row
            data_row = normalize_row(parsed_rows[i], max_cols)
            fixed_lines.append(rebuild_row(data_row, style[0], style[1]))
            
            # Add separator after data row
            fixed_lines.append(rebuild_row(separator, style[0], style[1]))
            
            i += 1
    else:
        # Standard table structure
        # Add header row (always the first row)
        header = normalize_row(parsed_rows[0], max_cols)
        fixed_lines.append(rebuild_row(header, style[0], style[1]))
        
        # Add separator row after header
        separator = ['---'] * max_cols
        fixed_lines.append(rebuild_row(separator, style[0], style[1]))
        
        # Add data rows, skipping any separators
        for i in range(1, len(parsed_rows)):
            if is_separator[i]:
                continue
            
            data_row = normalize_row(parsed_rows[i], max_cols)
            fixed_lines.append(rebuild_row(data_row, style[0], style[1]))
    
    return fixed_lines

# Test with example if run directly
if __name__ == "__main__":
    example = """| ●| we have a limited customer base and limited sales and relationships with
international customers;  
---|---|---  
| ●| difficulty in managing multinational operations;  
---|---|---"""
    
    fixed = fix_invalid_markdown_tables(example)
    print(fixed)

```