one-liner clear solution for End Zeros by tom-tom - python coding challenges

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one-liner solution in Clear category for End Zeros by tom-tom

def end_zeros(num: int) -> int:
    return len(s := str(num)) - len(s.rstrip('0'))

Feb. 26, 2020

Comments:

suic on March 2, 2020, 6:19 p.m.
+2 for `:=`

PHANTOM0308 on April 6, 2020, 2:22 a.m.
is that a new update of Python?

ProgrammerBruce on April 6, 2020, 3:44 a.m.
<a href="https://www.python.org/dev/peps/pep-0572/">https://www.python.org/dev/peps/pep-0572/</a>

liu.zzz on April 7, 2020, 2:32 a.m.
：= only use in py3.8 before v3.8: len(str(num)) - len(str(num).rstrip('0'))

tom-tom on April 7, 2020, 7 a.m.
`:=` , not `: =`

yuxuanye145 on July 11, 2020, 2:52 p.m.
thanks.

Sky_J on May 10, 2021, 6:37 a.m.
thanks

mn4740 on April 17, 2020, 6:59 p.m.
I like it. Beautiful Pythonic code!

shaggyrobot on April 21, 2020, 8:09 p.m.
Cool, thanks for sharing.

uzodinmaforcun on May 14, 2020, 12:02 a.m.
smart yet simple. Learnt from this. how does one familiarize with such unusual syntaxes?

Gerstox on May 14, 2020, 6:52 p.m.
I seem very good your solution, and i've learn the rstrip() function! awesome!

Bundy on May 22, 2020, 7:07 a.m.
Wow! I need some Python syntax update on this. :)

toreador0 on June 18, 2020, 2:09 a.m.
Гребаный волшебник

ostap.bender.ac on Sept. 8, 2021, 1:07 p.m.
у меня мозг возорвался

d1mk0u_a63c49cfa9c04556853fad1 on July 15, 2020, 8:59 p.m.
Looks nice

BlooAlien on July 23, 2020, 6:25 a.m.
Nice use of the new "walrus operator" there! Loved this solution purely on that basis alone!

WuYuFFFan on Aug. 3, 2020, 9:11 a.m.
nice

issa24 on Aug. 21, 2020, 9 a.m.
A smart, beautiful, and concise Pythonic way

moosetraveller on Aug. 25, 2020, 2:13 a.m.
Why rstrip() and not just strip()? An integer (beside zero itself) never starts with a 0 ;)

tom-tom on Aug. 25, 2020, 8:23 a.m.
strip has less letters in its name, but rstrip does less work (I suppose).

tom-tom on Aug. 25, 2020, 9:52 a.m.
And, even more important, rstrip describes intention better.

moosetraveller on Aug. 25, 2020, 2:08 p.m.
That's a solid argument.

hihaar on Sept. 13, 2020, 11:37 a.m.
It Was Awesome!

xiaoyangli.cityu on Oct. 9, 2020, 1:51 p.m.
brilliant one-liner!

jasses on Oct. 11, 2020, 7:01 a.m.
thanks for sharing

samhuawey on Dec. 4, 2020, 9:41 a.m.
3 text operations, one conversion - your CPU would start throttling if you continue this way. I guess division is much faster.

tom-tom on Dec. 4, 2020, 10:52 a.m.
Make your solution, do a performance comparison, and put it in the Speedy category (or not).

aleczho1005 on Dec. 18, 2020, 11:51 p.m.
good job

walidshaari on Jan. 6, 2021, 1:11 p.m.
I would rather have it two lines for clarity, readability, as well most of us do not have python 3.8 yet ```python def end_zeros(num: int) -> int: s = str(num) return len(s) - len(s.rstrip('0')) ```

marat.m on March 14, 2021, 12:01 a.m.
Beautiful! This contribution just helped me advance my understanding of two new concepts. The walrus operator and the method str.rstrip(). Thx!

bkaraica on March 15, 2021, 11:44 a.m.
Nice. Learned something today :).

Tylerflx on April 6, 2021, 4:05 a.m.
beautiful

paltuss92 on April 14, 2021, 5:35 p.m.
good

memmedyar888 on May 10, 2021, 1:47 p.m.
why we subtract len? I didn't get that part

tom-tom on May 10, 2021, 4:06 p.m.
End zeros length equals total length minus length with end zeros truncated

_Chico_ on May 22, 2021, 6:17 a.m.
I like that one:)

TheBigHotdog on May 23, 2021, 6:13 p.m.
what is <pre class='brush: python'>:= </pre> ?

_Chico_ on May 26, 2021, 7:04 a.m.
Just google :-)

ainoneko on July 16, 2021, 4:30 p.m.
Or read other comments on this page ¯|(ツ)/¯

czhdczhd on June 2, 2021, 12:56 p.m.
learned

pkwon35 on June 13, 2021, 3:59 a.m.
wow!!

2557477195 on June 28, 2021, 3:23 a.m.
excellent!!!!!!

alekssamos on Sept. 16, 2021, 8:34 a.m.
I don't understand how it works! Please explain Я не понимаю, как это работает! Объясните, пожалуйста

tom-tom on Sept. 16, 2021, 5:20 p.m.
<pre class='brush: python'>7309851000 7309851 <-- 10 --> <- 7 -> </pre> 10 - 7 = 3

viktor.chyrkin on Sept. 26, 2021, 12:53 p.m.
cool

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