Line of code takes 12 seconds off runtime.

[ahitt6345]

Apparently, this tim sort keeps merging uneven runs. Adding this code makes sure it prioritizes Even Runs. I ran this timsort(before edit) on 1000000 Integers in a random order. It took a whopping 12 SECONDS vs. The normal merge sort's 2 seconds. Now, it's run time is improved to 0.9 seconds.

[bellbind]

I want to apply it, but the project as the document code, it should not applied the last code only.

[ahitt6345]

Then you should apply the code to all the documents that use the stack.