First clear solution for Letter Queue by bukebuer - python coding challenges

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First solution in Clear category for Letter Queue by bukebuer

def letter_queue(commands):
    s = ''
    for cmd in commands:
        if 'PUSH' in cmd:
            s += cmd.split(' ')[1]
        else:
            s = s[1:] if s else ''
    return s

July 2, 2014

Comments:

Cjkjvfnby on Aug. 13, 2014, 10:34 a.m.
string is not best collection type for queue :)

xtofl on Sept. 28, 2014, 3:33 p.m.
Actually I'm positively surprised that `str` fits so well in this solution! After all that's what was asked, no?

bukebuer on Aug. 13, 2014, 11:12 a.m.
yeah, I am just lazy

frichard44 on Nov. 3, 2014, 4:54 p.m.
line 7: s[1:] returns empty list if s i empty (so the if s else '' is useless)

bukebuer on Nov. 4, 2014, 1 a.m.
I worried about use s[1:] when s is empty would raise error. Now I don't need to worry any more. Thanks.

Strings Theory

0 %

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