importhashlibimporttimedefmine_dogecoin(block_number,transactions,previous_hash,difficulty,nonce_min,nonce_max):"""    Simulate Dogecoin mining by finding a hash that meets the difficulty target.    Args:    - block_number (int): The current block number.    - transactions (str): The block's transaction data.    - previous_hash (str): The hash of the previous block.    - difficulty (int): The number of leading zeros required in the hash.    - nonce_min (int): Minimum value of nonce.    - nonce_max (int): Maximum value of nonce.    Returns:    - str: The mined hash.    - int: The successful nonce.    """target='0'*difficultyprint(f"Mining block with difficulty:{difficulty}, Target:{target}")fornonceinrange(nonce_min,nonce_max+1):block_data=f"{block_number}{transactions}{previous_hash}{nonce}"block_hash=hashlib.sha256(block_data.encode()).hexdigest()ifblock_hash.startswith(target):print(f"Success! Mined Hash:{block_hash}, Nonce:{nonce}")returnblock_hash,nonceprint("Failed to mine within the given nonce range.")returnNone,None# Example parametersblock_number=1transactions="Alice->Bob->10DOGE;Charlie->Eve->20DOGE"previous_hash="0000000000000000000000000000000000000000000000000000000000000000"difficulty=4# Adjust for more/less difficultynonce_min=0nonce_max=1000000# Simulate a range# Start miningstart_time=time.time()mined_hash,successful_nonce=mine_dogecoin(block_number,transactions,previous_hash,difficulty,nonce_min,nonce_max)end_time=time.time()ifmined_hash:print(f"Block mined successfully in{end_time-start_time:.2f} seconds.")print(f"Mined Hash:{mined_hash}, Nonce:{successful_nonce}")else:print("Mining failed. Try increasing the nonce range or adjusting the difficulty.")