20-08-2009 o 13:01:29 Neal Becker <[email protected]> wrote:
I meant #occurrences of characters from the set A in string B
But:
1) separately for each element of A? (see Simon's sollution with
defaultdict)
2) or total number of all occurrences of elements of A? (see below)
20-08-2009 o 14:05:12 Peter Otten <[email protected]> wrote:
identity = "".join(map(chr, range(256)))
n = len(b) - len(b.translate(identity, a))
Nice, though I'd prefer Simon's sollution:
a = set(a)
n = sum(item in a for item in b)
Regards,
*j
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Jan Kaliszewski (zuo) <[email protected]>
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