I agree it is faster by running it through compiled C code. Saying "my code is more efficient than your code" might be acceptable, but saying "my code is effic

I agree it is faster by running it through compiled C code. Saying "my code is more efficient than your code" might be acceptable, but saying "my code is efficient" drives me mad when it is used as a synonym for "my code is fast". Take a look at [1] and the note that this is not about optimization. Efficient algorithms are usually algorithms with close to optimal time or space complexitiy. https://en.wikipedia.org/wiki/Algorithmic_efficiency https://en.wikipedia.org/wiki/Algorithmic_efficiency