It's bad solution to calculate sum(...) in each "for" loop

Hello!
First of all, thank you for the great kata)
I am trying to pass C++ full test suite, but I keep gettting timeout error despite all my attempts on optimization.
However, "HEY JUDE" test takes 6-9 ms to complete. Is there an issue with my code and I need to continue optimization or something wrong with the tests?

UPD: Oh, my fault: there's been a mistake!)

Can someone please point out to me, why I can't pass this test:
Testing if the words, spaces and punctuation order has been respected for... and my jumbled text is:

Aodnirccg to a reerachesr at Cigbdarme Uitrvsneiy, it dnoes't mteatr in what oerdr the leertts in a word are, the only ioaptmnrt thnig is taht the fsirt and lsat letetr be at the rihgt palce. The rset can be a tatol mess and you can sitll read it wiothut pobelrm. Tihs is bcsuaee the hamun mind does not raed ervey lteter by ietlsf but the word as a wlohe.

Sometimes the constant factor is important when it's really performance-critical.

For example, heap sort and merge sort typically has a much bigger constant runtime factor than quick sort.

the simplification is valable/usefull for comparisons only if you compare different "degrees of complexity"

O(2n) == O(n)

O(2N) while it's easy to do it in O(N)...

thanks a lot!

@alexandrpi,

is tests for identity, not equality.

>>> t = 0.0
>>> t is 0.0
False
>>> 0 is 0.0
False
>>> id(0)
140060787693792  # not the same id as 0.0
>>> id(0.0)
140060789559680  # not the same id as 0
>>> 0 == 0.0
True

• https://stackoverflow.com/questions/22885931/when-if-ever-to-use-the-is-keyword-in-python

http://prntscr.com/dxuk0r

Can anyone explain please what's wrong here? It is python 2.7.somewhat

Can you explain please what this decorator do?

Thanks for letting me know.. I have not looked at the PEP8 documentation.

Nevertheless, PEP8 does not recommend to assign lambda expressions to variables.