def copy_dict_reset(source_dict):
    """Copy a dictionary and reset values to 0.
    
    Args:
        source_dict (dict): Dictionary to be copied.
        
    Returns:
        new_dict (dict): New dictionary with values set to 0.
    """
    new_dict = {}
    for key in source_dict.keys():
        new_dict[key] = 0
    return new_dict