a0ms1n/AI-Code-Detector_for-Competitive-Programming

1 2import re3import subprocess4import shutil5preprocessor_pattern = re.compile(r'^\s*#.*$', re.MULTILINE)6block_comment_pattern = re.compile(r'/\*.*?\*/', re.DOTALL)7using_pattern = re.compile(r'^\s*using\s+[^\n;]+;', re.MULTILINE)8typedef_pattern = re.compile(r'^\s*typedef\s+[^\n;]+;', re.MULTILINE)9line_comment_pattern = re.compile(r'//.*')10 11def remove_comments(code):12    code = block_comment_pattern.sub('', code)13    code = line_comment_pattern.sub('', code)14    return code15    16def replace_preprocessor(code):17    code = preprocessor_pattern.sub('<PREPROCESSOR>', code)18    code = using_pattern.sub('<PREPROCESSOR>', code)19    code = typedef_pattern.sub('<PREPROCESSOR>',code)20    return code21    22def strip_lines(text, max_blank_lines=0):23    text += '\n'24    lines = text.splitlines()25    kept = []26    consec = 027    for line in lines:28        if line.strip() == "":29            consec +=130        else:31            consec = 032        if consec <= max_blank_lines:33            kept.append(line)34    return '\n'.join(kept)    35 36space_braces_function_pattern = re.compile(r'(\([^\)]*\))\s*\{')37multiline_function_pattern = re.compile(r'(\([^\)]*\))\s*\n\s*\{')38 39def normalize_braces(code):40    code = multiline_function_pattern.sub(r'\1{', code)41    code = space_braces_function_pattern.sub(r'\1{',code)42    return code43 44def format_cpp(code: str, style: str = "Google") -> str:45    if not shutil.which("clang-format"):46        raise EnvironmentError("clang-format is not installed or not in PATH.")47 48    result = subprocess.run(49        ["clang-format", f"--style={style}"],50        input=code.encode(),51        stdout=subprocess.PIPE,52        stderr=subprocess.PIPE,53        check=True54    )55 56    return result.stdout.decode()