count clear solution for Follow Instructions by Sim0000 - python coding challenges

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count solution in Clear category for Follow Instructions by Sim0000

def follow(instructions):
    c = instructions.count
    return c('r') - c('l'), c('f') - c('b')



if __name__ == '__main__':
    print("Example:")
    print(follow("fflff"))
    
    # These "asserts" are used for self-checking and not for an auto-testing
    assert follow("fflff") == (-1, 4)
    assert follow("ffrff") == (1, 4)
    assert follow("fblr") == (0, 0)
    print("Coding complete? Click 'Check' to earn cool rewards!")

Feb. 22, 2018

Comments:

Tinus_Trotyl on March 4, 2018, 10:46 a.m.
Nice !!!

vlad.bezden on May 22, 2020, 4:23 a.m.
Awesome

Jonethan on Oct. 1, 2020, 11:56 a.m.
Wow!!

2010min0ru on Oct. 30, 2020, 12:32 p.m.
This is super clever!

kdim on Jan. 27, 2021, 6:11 p.m.
Great!!!

_Chico__5d82cee4f5234e78a5c65e on May 21, 2021, 7:16 a.m.
Just: Perfect solution!

myusercb on May 25, 2021, 5:03 p.m.
I like it... really nice

leggewie on June 13, 2021, 11:35 a.m.
brilliant

tkachuk.constantine on June 20, 2021, 3:24 p.m.
A....a!!!! Cool! Simple! Effective!

jsg-inet on July 9, 2021, 10:41 a.m.
Simple, smart and effective! Only a little doubt: Is it not necesary to put "(" at the beguining and ")" at the end to return a tuple?

Urza on Aug. 4, 2021, 12:33 p.m.
Just forgot it was possible. Thank you.

koborC on Sept. 3, 2021, 8:46 a.m.
clever! I use collections.Counter, I didn't think before start writing...

pathFinder586 on Jan. 30, 2022, 2:52 a.m.
I feel so silly (about my code) after seeing your solution.

wadada220104 on April 1, 2022, 9:13 a.m.
It's really simple solution.Thanks you so much. But it will go through the string four times. If the length of string is too big, I think it will spend a lot of time

Wartem on Aug. 5, 2022, 2:07 p.m.
This is clever, you returned a function to count with.. Learned something new here. Thank you!

Kverde on Aug. 13, 2022, 8:59 a.m.
The good solution based on the fact that instructions can be processed in any order.

SIRvice on March 18, 2023, 3:48 p.m.
A +

silopolis on June 28, 2023, 6:26 p.m.
beautiful !

adamspj on March 1, 2024, 1:03 a.m.
I like the c = instructions.count. Whereas I don't always like abbreviating function (method) names like this, in the particular case, where the whole thing is simple, the readability of the code is actually improved and it remains perfectly clear.

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