Short clear solution for Pearls in the Box by Pouf - python coding challenges

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Short solution in Clear category for Pearls in the Box by Pouf

def checkio(marbles, step):
    w, T = marbles.count('w'), len(marbles)
    for turn in range(1, step):
        w = T*w + T**turn - 2*w
    return w/T**step

Oct. 10, 2015

Comments:

not_real on Aug. 13, 2019, 8:41 a.m.
Could you explain the reasoning behind this line?: ~~~ python w = Tw + Tturn - 2w ~~~

Rcp8jzd on Feb. 29, 2020, 9:43 p.m.
The answer is mathemetical. See the attached file

Ice Base

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