<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Do you know any libraries for those more efficient algorithms?<|im_end|>
<|im_start|>assistant
Yes, there are several libraries available for the Christofides algorithm and Lin-Kernighan algorithm:

1. NetworkX - This is a Python library for analyzing and manipulating graphs, which includes an implementation of the Christofides algorithm.

2. PyOpt - This is a Python library for optimization and includes an implementation of the Lin-Kernighan algorithm.

3. TSPy - This is a Python library for solving the TSP problem, which includes an implementation of the Christofides algorithm and the Lin-Kernighan algorithm.

4. OR-Tools - This is a library for operations research, which includes an implementation of the Christofides algorithm and the Lin-Kernighan algorithm.

5. PyTSP - This is a Python library for solving the TSP problem, which includes an implementation of the Christofides algorithm and the Lin-Kernighan algorithm.<|im_end|>
<|im_start|>user
Thank you a lot! I'm going to use it and see if it works, I'll keep you up to date if there's any errors or if need help with the code.<|im_end|>
<|im_start|>assistant
I would love to hear if it woked and if I solved your problem. If you run into any errors, don't hesitate to ask me and I will be sure to try my best to resolve it. Also if you have a error message, make sure to provide me with that information as it helps me figure out the problem easier.<|im_end|>