Given a and b as a string, return b-a without using string to number conversion functions. a and b must to be a same size and b > a.
a = '0125'
b = '1125'
y = 1000
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Problem Comments
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2 Comments
Jean-Marie Sainthillier
on 28 Nov 2012
The test suite is too simple.
Amin Bashi
on 2 Dec 2012
updated.
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