Second creative solution for Roman Numerals by ciel - python coding challenges

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Second solution in Creative category for Roman Numerals by ciel

checkio=lambda data: ['','M','MM','MMM'][data//1000]+['','C','CC','CCC','CD','D','DC','DCC','DCCC','CM'][data//100%10]+['','X','XX','XXX','XL','L','LX','LXX','LXXX','XC'][data//10%10]+['','I','II','III','IV','V','VI','VII','VIII','IX'][data%10]

#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
    assert checkio(6) == 'VI', '6'
    assert checkio(76) == 'LXXVI', '76'
    assert checkio(499) == 'CDXCIX', '499'
    assert checkio(3888) == 'MMMDCCCLXXXVIII', '3888'

Feb. 18, 2014

Comments:

xiongbiao on May 23, 2014, 3:43 a.m.
Good

SimonMontford on July 13, 2014, 8:41 p.m.
pretty clear, could have gone in Clear - more easy to immediately see what's going on than the top-voted ones there

ciel on July 14, 2014, 9:08 a.m.
Perhaps I should not hardcode all numerals, I think. How do you think?

SimonMontford on July 14, 2014, 10:53 a.m.
you don't need to, I didn't, but doing so makes it very easy to understand what's going on

rbrian on July 22, 2014, 11:03 p.m.
Brilliant

fariik on Sept. 17, 2014, 11:59 a.m.
Great !!!!!

nathan.l.cook on Oct. 15, 2014, 2:39 a.m.
Nice use of modulus

kryksyh on April 16, 2015, 5:33 p.m.
Is it really creative to compress clear algorithm into one ridiculously long line? Good approach though.

Butch on July 2, 2015, 4:27 a.m.
Hah. First lambda solution that I been able to read and understand!

oduvan on Sept. 25, 2016, 9:09 a.m.
One liner from this one <a href="https://py.checkio.org/mission/roman-numerals/publications/mdeakyne/python-3/first/share/53882d47af904f942fc8daf06c0ed270/">https://py.checkio.org/mission/roman-numerals/publications/mdeakyne/python-3/first/share/53882d47af904f942fc8daf06c0ed270/</a>

Paul-Yuchao-Dong on Dec. 6, 2016, 8:38 a.m.
wow, why didn't I think of the //100%10? this one-liner looks 10 times clearer than my loops...

ehfgk78 on April 25, 2017, 2:59 a.m.
great!!

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